diff options
| author | Eric S. Raymond <esr@thyrsus.com> | 2011-04-19 21:33:32 -0400 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2011-04-19 21:33:32 -0400 |
| commit | 32e97aa0bd48743d2b23ff3bc42652ca0dbb85ee (patch) | |
| tree | b2f63d4924d389d6f562965320346370e364ef3c /www | |
| parent | d1e75386f2e4f1120261620ceb968179f2f3ec15 (diff) | |
| download | gpsd-32e97aa0bd48743d2b23ff3bc42652ca0dbb85ee.tar.gz | |
Add type information to every field in the AIVDM message breakdowns.
Diffstat (limited to 'www')
| -rw-r--r-- | www/AIVDM.txt | 2315 |
1 files changed, 1183 insertions, 1132 deletions
diff --git a/www/AIVDM.txt b/www/AIVDM.txt index e32493ee..78f8664b 100644 --- a/www/AIVDM.txt +++ b/www/AIVDM.txt @@ -1,6 +1,6 @@ = AIVDM/AIVDO protocol decoding = Eric S. Raymond <esr@thyrsus.com> -v1.31, Apr 2011 +v1.31+, Apr 2011 This document is mastered in asciidoc format. If you are reading it in HTML, you can find the original at http://gpsd.berlios.de/AIVDM.txt[] @@ -473,6 +473,21 @@ in computer languages, so that application programming interfaces across different languages can have a common and readily intelligible set to use. +The "T" column declares the data type of the field, and may have +any of the values in the following table. It is intended to be used +for generating bitfield-extraction code directly from the message +type descriptions. + +[frame="topbot",options="header"] +|============================================================================== +|u| Unsigned integer +|i| Signed integer +|b| Boolean +|x| Spare or reserved bit +|t| String +|d| Data +|============================================================================== + The field breakdowns in this document have been checked against live decoded data rendered by known-good implementations for message types 1-15, 18-21, and 24. Described but unchecked are 16-17, 22-23, and @@ -495,25 +510,25 @@ decoding software. Total of 168 bits, occupying one AIVDM sentence. .Common Navigation Block [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 1-3 -|6-7 | 2 |Repeat Indicator |repeat |See below... -|8-37 |30 |MMSI |mmsi |Unsigned integer: 9 digits -|38-41 | 4 |Navigation Status |status |See table below -|42-49 | 8 |Rate of Turn (ROT) |turn |Signed integer: see below -|50-59 |10 |Speed Over Ground (SOG) |speed |Unsigned integer: see below -|60-60 | 1 |Position Accuracy |accuracy |See below -|61-88 |28 |Longitude |lon |Minutes/10000 (see below) -|89-115 |27 |Latitude |lat |Minutes/10000 (see below) -|116-127 |12 |Course Over Ground (COG) |course |Relative to true north, -| | | | |to 0.1 degree precision -|128-136 | 9 |True Heading (HDG) |heading |0 to 359 degrees, -| | | | |511 = not available -|137-142 | 6 |Time Stamp |second |Second of UTC timestamp -|143-144 | 2 |Maneuver Indicator |maneuver |See below -|145-147 | 3 |Spare | |Not used -|148-148 | 1 |RAIM flag |raim |See below -|149-167 |19 |Radio status |radio |See below +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 1-3 +|6-7 | 2 |Repeat Indicator |repeat |u|See below... +|8-37 |30 |MMSI |mmsi |u|Unsigned integer: 9 digits +|38-41 | 4 |Navigation Status |status |u|See table below +|42-49 | 8 |Rate of Turn (ROT) |turn |i|Signed integer: see below +|50-59 |10 |Speed Over Ground (SOG) |speed |u|See below +|60-60 | 1 |Position Accuracy |accuracy |b|See below +|61-88 |28 |Longitude |lon |i|Minutes/10000 (see below) +|89-115 |27 |Latitude |lat |i|Minutes/10000 (see below) +|116-127 |12 |Course Over Ground (COG) |course |u|Relative to true north, + to 0.1 degree precision +|128-136 | 9 |True Heading (HDG) |heading |u|0 to 359 degrees, + 511 = not available. +|137-142 | 6 |Time Stamp |second |u|Second of UTC timestamp +|143-144 | 2 |Maneuver Indicator |maneuver |u|See below +|145-147 | 3 |Spare | |x|Not used +|148-148 | 1 |RAIM flag |raim |b|See below +|149-167 |19 |Radio status |radio |u|See below |============================================================================== The Repeat Indicator is a directive to an AIS transceiver that this @@ -629,23 +644,23 @@ The standard uses "EPFD" to designate any Electronic Position Fixing Device. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 4 -|6-7 | 2 |Repeat Indicator |repeat |Unknown -|8-37 | 30 |MMSI |mmsi |Unsigned integer: 9 digits -|38-51 | 14 |Year |year |UTC, 1-999, 0 = N/A (default) -|52-55 | 4 |Month |month |1-12; 0 = N/A (default) -|56-60 | 5 |Day |day |1-31; 0 = N/A (default) -|61-65 | 5 |Hour |hour |0-23; 24 = N/A (default) -|66-71 | 6 |Minute |minute |0-59; 60 = N/A (default) -|72-77 | 6 |Second |second |0-59; 60 = N/A (default) -|78-78 | 1 |Fix quality |accuracy |As in Common Navigation Block -|79-106 | 28 |Longitude |lon |As in Common Navigation Block -|107-133 | 27 |Latitude |lat |As in Common Navigation Block -|134-137 | 4 |Type of EPFD |epfd |See below -|138-147 | 10 |Spare | |Not used -|148-148 | 1 |RAIM flag |raim |As for common navigation block -|149-167 | 19 |SOTDMA state |radio |As in same bits for Type 1 +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 4 +|6-7 | 2 |Repeat Indicator |repeat |u|Unknown +|8-37 | 30 |MMSI |mmsi |u|Unsigned integer: 9 digits +|38-51 | 14 |Year |year |u|UTC, 1-999, 0 = N/A (default) +|52-55 | 4 |Month |month |u|1-12; 0 = N/A (default) +|56-60 | 5 |Day |day |u|1-31; 0 = N/A (default) +|61-65 | 5 |Hour |hour |u|0-23; 24 = N/A (default) +|66-71 | 6 |Minute |minute |u|0-59; 60 = N/A (default) +|72-77 | 6 |Second |second |u|0-59; 60 = N/A (default) +|78-78 | 1 |Fix quality |accuracy |b|As in Common Navigation Block +|79-106 | 28 |Longitude |lon |i|As in Common Navigation Block +|107-133 | 27 |Latitude |lat |i|As in Common Navigation Block +|134-137 | 4 |Type of EPFD |epfd |u|See below +|138-147 | 10 |Spare | |x|Not used +|148-148 | 1 |RAIM flag |raim |b|As for common navigation block +|149-167 | 19 |SOTDMA state |radio |u|As in same bits for Type 1 |============================================================================== .EPFD fix type codes @@ -678,30 +693,30 @@ humans rather than gathered automatically from sensors. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Encoding -|0-5 | 6 |Message Type |type |Unsigned integer: 5 -|6-7 | 2 |Repeat Indicator |repeat |Message repeat count -|8-37 | 30 |MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |AIS Version |ais_version |0=<<ITU1371>>, -| | | | |1-3 = future editions -|40-69 | 30 |IMO Number |imo |Unsigned IMO ship ID number -|70-111 | 42 |Call Sign |callsign |7 six-bit characters -|112-231 |120 |Vessel Name |shipname |20 six-bit characters -|232-239 | 8 |Ship Type |shiptype |See table below -|240-248 | 9 |Dimension to Bow |to_bow |Unsigned integer: Meters -|249-257 | 9 |Dimension to Stern |to_stern |Unsigned integer: Meters -|258-263 | 6 |Dimension to Port |to_port |Unsigned integer: Meters -|264-269 | 6 |Dimension to Starboard |to_starboard |Unsigned integer: Meters -|270-273 | 4 |Position Fix Type |epfd |As in Type 4 EPSD codes -|274-277 | 4 |ETA month |month |1-12, 0=N/A (default) -|278-282 | 5 |ETA day |day |1-31, 0=N/A (default) -|283-287 | 5 |ETA hour |hour |0-23, 24=N/A (default) -|288-293 | 6 |ETA minute |minute |0-59, 60=N/A (default) -|294-301 | 8 |Draught |draught |Unsigned integer: Meters/10 -|302-421 |120 |Destination |destination |20 6-bit characters -|422-422 | 1 |DTE |dte |0=Data terminal ready, -| | | | |1=Not ready (default) -|423-423 | 1 |Spare | |Not used +|Field |Len |Description |Member/Type |T|Encoding +|0-5 | 6 |Message Type |type |u|Constant: 5 +|6-7 | 2 |Repeat Indicator |repeat |u|Message repeat count +|8-37 | 30 |MMSI |mmsi |u|9 digits +|38-39 | 2 |AIS Version |ais_version |u|0=<<ITU1371>>, + 1-3 = future editions +|40-69 | 30 |IMO Number |imo |u|IMO ship ID number +|70-111 | 42 |Call Sign |callsign |t|7 six-bit characters +|112-231 |120 |Vessel Name |shipname |t|20 six-bit characters +|232-239 | 8 |Ship Type |shiptype |u|See table below +|240-248 | 9 |Dimension to Bow |to_bow |u|Unsigned integer: Meters +|249-257 | 9 |Dimension to Stern |to_stern |u|Unsigned integer: Meters +|258-263 | 6 |Dimension to Port |to_port |u|Unsigned integer: Meters +|264-269 | 6 |Dimension to Starboard |to_starboard |u|Unsigned integer: Meters +|270-273 | 4 |Position Fix Type |epfd |u|As in Type 4 EPSD codes +|274-277 | 4 |ETA month |month |u|1-12, 0=N/A (default) +|278-282 | 5 |ETA day |day |u|1-31, 0=N/A (default) +|283-287 | 5 |ETA hour |hour |u|0-23, 24=N/A (default) +|288-293 | 6 |ETA minute |minute |u|0-59, 60=N/A (default) +|294-301 | 8 |Draught |draught |u|Meters/10 +|302-421 |120 |Destination |destination |t|20 6-bit characters +|422-422 | 1 |DTE |dte |b|0=Data terminal ready, + 1=Not ready (default). +|423-423 | 1 |Spare | |x|Not used |============================================================================== Ship dimensions will be 0 if not available. For the dimensions to bow @@ -814,19 +829,19 @@ payloads). [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70 | 1 |Retransmit flag |retransmit |0 = no retransmission (default) -| | | | |1 = retransmitted -|71 | 1 |Spare | |Not used -|72-81 | 10 |Designated Area Code |dac |Unsigned integer -|82-87 | 6 |Functional ID |fid |Unsigned integer -|88 |920 |Data |data |Binary data -| | | | |May be shorter than 920 bits. +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70 | 1 |Retransmit flag |retransmit|u|0 = no retransmit (default) + 1 = retransmitted +|71 | 1 |Spare | |x|Not used +|72-81 | 10 |Designated Area Code |dac |u|Unsigned integer +|82-87 | 6 |Functional ID |fid |u|Unsigned integer +|88 |920 |Data |data |d|Binary data + May be shorter than 920 bits. |============================================================================== Interpretation of the binary payload is controlled by: @@ -873,32 +888,33 @@ This is the <<IMO236>> version, now deprecated; there is a later [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70-70 | 1 |Retransmit flag |retransmit|0 = no retransmission (default) -| | | | |1 = retransmitted -|71-71 | 1 |Spare | |Not used -|72-87 | 16 |DAC/FID | |DAC = 001 FID = 12 -|88-117 | 30 |Last Port Of Call |lastport |5 6-bit characters, UN locode -|118-121 | 4 |ETA month |lmonth |1-12, 0=N/A (default) -|122-126 | 5 |ETA day |lday |1-31, 0=N/A (default) -|127-131 | 5 |ETA hour |lhour |0-23, 24=N/A (default) -|132-137 | 6 |ETA minute |lminute |0-59, 60=N/A (default) -|138-167 | 30 |Next Port Of Call |nextport |5 6-bit characters, UN locode -|168-171 | 4 |ETA month |nmonth |1-12, 0=N/A (default) -|172-176 | 5 |ETA day |nday |1-31, 0=N/A (default) -|177-181 | 5 |ETA hour |nhour |0-23, 24=N/A (default) -|182-187 | 6 |ETA minute |nminute |0-59, 60=N/A (default) -|188-307 |120 |Main Dangerous Good |dangerous |20 6-bit characters -|308-331 | 24 |IMD Category |imdcat |4 6-bit characters -|332-344 | 13 |UN Number |unid |1-3363 UN Number -|345-354 | 10 |Amount of Cargo |amount |Unsigned integer -|355-356 | 2 |Unit of Quantity |unit |cargounit -|357-359 | 3 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70-70 | 1 |Retransmit flag |retransmit|u|0 = no retransmit (default), + 1 = retransmitted +|71-71 | 1 |Spare | |x|Not used +|72-81 | 10 |DAC |dac |u|DAC = 001 +|82-87 | 6 |FID |fid |u|FID = 12 +|88-117 | 30 |Last Port Of Call |lastport |t|5 6-bit characters, UN locode +|118-121 | 4 |ETA month |lmonth |u|1-12, 0=N/A (default) +|122-126 | 5 |ETA day |lday |u|1-31, 0=N/A (default) +|127-131 | 5 |ETA hour |lhour |u|0-23, 24=N/A (default) +|132-137 | 6 |ETA minute |lminute |u|0-59, 60=N/A (default) +|138-167 | 30 |Next Port Of Call |nextport |t|5 6-bit characters, UN locode +|168-171 | 4 |ETA month |nmonth |u|1-12, 0=N/A (default) +|172-176 | 5 |ETA day |nday |u|1-31, 0=N/A (default) +|177-181 | 5 |ETA hour |nhour |u|0-23, 24=N/A (default) +|182-187 | 6 |ETA minute |nminute |u|0-59, 60=N/A (default) +|188-307 |120 |Main Dangerous Good |dangerous |t|20 6-bit characters +|308-331 | 24 |IMD Category |imdcat |t|4 6-bit characters +|332-344 | 13 |UN Number |unid |u|1-3363 UN Number +|345-354 | 10 |Amount of Cargo |amount |u|Unsigned integer +|355-356 | 2 |Unit of Quantity |unit |u|cargounit +|357-359 | 3 |Spare | |x|Not used |============================================================================== .Dangerous Cargo Indication: cargounit codes @@ -925,31 +941,32 @@ different widths for the latitude, longitude, and current-speed fields [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70-70 | 1 |Retransmit flag |retransmit|0 = no retransmission (default) -| | | | |1 = retransmitted -|71-71 | 1 |Spare | |Not used -|72-87 | 16 |DAC/FID | |DAC = 001 FID = 14 -|88-91 | 4 |Month |month |1-12; 0 = N/A (default) -|92-96 | 5 |Day |day |1-31; 0 = N/A (default) -|97-123 | 27 |Latitude |lat |Signed: unit minutes * 0.001 -| | | | |91000 = N/A (default) -| | | | |N positive, S negative -|124-151 | 28 |Longitude |lon |Signed: unit minutes * 0.001 -| | | | |181000 = N/A (default) -| | | | |E positive, W negative -|152-156 | 5 |From UTC Hour |from_hour |0-23, 24 = N/A (default) -|157-162 | 6 |From UTC Minute |from_min |0-59, 60 = N/A (default) -|163-167 | 5 |To UTC Hour |to_hour |0-23, 24 = N/A (default) -|168-173 | 6 |To UTC Minute |to_min |0-59, 60 = N/A (default) -|174-182 | 9 |Current Dir. Predicted |cdir |0-359 deg, 360-N/A (default) -|183-189 | 7 |Current Speed Predicted|cspeed |0-126, units of 0.1 knots. -| | | | |127 = N/A (default) +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|See Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70-70 | 1 |Retransmit flag |retransmit|b|0 = no retransmit (default), + 1 = retransmitted +|71-71 | 1 |Spare | |x|Not used +|72-81 | 10 |DAC |dac |u|DAC = 001 +|82-87 | 6 |FID |fid |u|FID = 14 +|88-91 | 4 |Month |month |u|1-12; 0 = N/A (default) +|92-96 | 5 |Day |day |u|1-31; 0 = N/A (default) +|97-123 | 27 |Latitude |lat |i|Unit = minutes * 0.001, + 91000 = N/A (default), + N positive, S negative. +|124-151 | 28 |Longitude |lon |i|Unit = minutes * 0.001, + 181000 = N/A (default), + E positive, W negative. +|152-156 | 5 |From UTC Hour |from_hour |u|0-23, 24 = N/A (default) +|157-162 | 6 |From UTC Minute |from_min |u|0-59, 60 = N/A (default) +|163-167 | 5 |To UTC Hour |to_hour |u|0-23, 24 = N/A (default) +|168-173 | 6 |To UTC Minute |to_min |u|0-59, 60 = N/A (default) +|174-182 | 9 |Current Dir. Predicted |cdir |u|0-359 deg, 360-N/A (default) +|183-189 | 7 |Current Speed Predicted|cspeed |u|0-126, units of 0.1 knots, +| 127 = N/A (default). |============================================================================= The group of fields from longitude on may repeat twice more to convey up to @@ -967,16 +984,17 @@ A message 6 subtype. DAC = 001 FID = 16. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 16 -|55-68 | 13 |# persons on board |persons |Unsigned integer -| | | | |0 = N/A (default) -| | | | |8191 = >= 8191 persons. -|69-71 | 3 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 16 +|55-68 | 13 |# persons on board |persons |u|Unsigned integer + 0 = N/A (default) + 8191 = >= 8191 persons. +|69-71 | 3 |Spare | |x|Not used |============================================================================== Note that though this is a message 6 subtype and described in @@ -989,20 +1007,21 @@ decoder to accept either. Bit length may be used to distinguish them. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70-70 | 1 |Retransmit flag |retransmit|0 = no retransmission (default) -| | | | |1 = retransmitted -|71-71 | 1 |Spare | |Not used -|72-87 | 16 |DAC/FID | |DAC = 001 FID = 16 -|88-100 | 13 |# persons on board |persons |Unsigned integer -| | | | |0 = N/A (default) -| | | | |8191 = >= 8191 persons. -|101-135 | 35 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70-70 | 1 |Retransmit flag |retransmit|b|0 = no retransmit (default), + 1 = retransmitted. +|71-71 | 1 |Spare | |x|Not used +|72-81 | 10 |DAC |dac |u|DAC = 001 +|82-87 | 6 |FID |fid |u|FID = 16 +|88-100 | 13 |# persons on board |persons |u|Unsigned integer, + 0 = N/A (default), + 8191 = >= 8191 persons. +|101-135 | 35 |Spare | |x|Not used |============================================================================== ==== Clearance Time To Enter Port ==== @@ -1015,28 +1034,29 @@ A message 6 subtype. DAC = 001 FID = 18. Fixed length: 360 bits. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70-70 | 1 |Retransmit flag |retransmit |0 = no retransmission (default) -| | | | |1 = retransmitted -|71-71 | 1 |Spare | |Not used -|72-87 | 16 |DAC/FID | |DAC = 001 FID = 18 -|88-97 | 10 |Message Linkage ID |linkage |Unsigned integer -|98-101 | 4 |Month |month |1-12; 0 = N/A (default) -|102-106 | 5 |Day |day |1-31; 0 = N/A (default) -|107-111 | 5 |Hour |hour |0-23; 24 = N/A (default) -|112-117 | 6 |Minute |minute |0-59; 60 = N/A (default) -|118-237 |120 |Name of Port & Berth |portname |20 6-bit characters -|238-267 | 30 |Destination |destination|5 6-bit characters -|268-292 | 25 |Longitude |lon |Signed: unit minutes * 0.001 -| | | | |181000 = N/A (default) -|293-316 | 24 |Latitude |lat |Signed: unit minutes * 0.001 -| | | | |91000 = N/A (default) -|317-359 | 43 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70-70 | 1 |Retransmit flag |retransmit |b|0 = no retransmit (default), + 1 = retransmitted. +|71-71 | 1 |Spare | |x|Not used +|72-81 | 10 |DAC |dac |u|DAC = 001 +|82-87 | 6 |FID |fid |u|FID = 18 +|88-97 | 10 |Message Linkage ID |linkage |u|Unsigned integer +|98-101 | 4 |Month |month |u|1-12; 0 = N/A (default) +|102-106 | 5 |Day |day |u|1-31; 0 = N/A (default) +|107-111 | 5 |Hour |hour |u|0-23; 24 = N/A (default) +|112-117 | 6 |Minute |minute |u|0-59; 60 = N/A (default) +|118-237 |120 |Name of Port & Berth |portname |u|20 6-bit characters +|238-267 | 30 |Destination |destination|u|5 6-bit characters +|268-292 | 25 |Longitude |lon |i|Unit = minutes * 0.001, + 181000 = N/A (default). +|293-316 | 24 |Latitude |lat |i|Unit = minutes * 0.001, + 91000 = N/A (default). +|317-359 | 43 |Spare | |x|Not used |============================================================================== ==== IMO 289 Berthing Data (addressed) ==== @@ -1053,61 +1073,62 @@ bit is on. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70-70 | 1 |Retransmit flag |retransmit |0 = no retransmission (default) -| | | | |1 = retransmitted -|71-71 | 1 |Spare | |Not used -|72-87 | 16 |DAC/FID | |DAC = 001 FID = 20 -|88-97 | 10 |Message Linkage ID |linkage |Unsigned integer -|98-106 | 9 |Berth length |berth_length |1-510 m -| | | | |511 = >= 511m -| | | | |0 = N/A (default) -|107-114 | 8 |Berth Water Depth |berth_depth |0.1-25.4m in 0.1 steps -| | | | |255 = >= 25.5m -| | | | |0 = N/A (default) -|115-117 | 3 |Mooring Position |position |See below -|118-121 | 4 |Month |month |1-12; 0 = N/A (default) -|122-126 | 5 |Day |day |1-31; 0 = N/A (default) -|127-131 | 5 |Hour |hour |0-23; 24 = N/A (default) -|132-137 | 6 |Minute |minute |0-59; 60 = N/A (default) -|138-138 | 1 |Services Availability|availability|0 = services types unknown -| | | | |1 = services types are known -|139-140 | 2 |Agent |agent |Service status value -|141-142 | 2 |Bunker/fuel |fuel |Service status value -|143-144 | 2 |Chandler |chandler |Service status value -|145-146 | 2 |Stevedore |stevedore |Service status value -|147-148 | 2 |Electrical |electrical |Service status value -|149-150 | 2 |Potable water |water |Service status value -|151-152 | 2 |Customs house |customs |Service status value -|153-154 | 2 |Cartage |cartage |Service status value -|155-156 | 2 |Crane(s) |crane |Service status value -|157-158 | 2 |Lift(s) |lift |Service status value -|159-160 | 2 |Medical facilities |medical |Service status value -|161-162 | 2 |Navigation repair |navrepair |Service status value -|163-164 | 2 |Provisions |provisions |Service status value -|165-166 | 2 |Ship repair |shiprepair |Service status value -|167-168 | 2 |Surveyor |surveyor |Service status value -|169-170 | 2 |Steam |steam |Service status value -|171-172 | 2 |Tugs |tugs |Service status value -|173-174 | 2 |Waste disposal (solid) |soldwaste |Service status value -|175-176 | 2 |Waste disposal (liquid) |liquidwaste |Service status value -|177-178 | 2 |Waste disposal (hazardous)|hazardouswaste|Service status value -|179-180 | 2 |Reserved ballast exchange |ballast |Service status value -|181-182 | 2 |Additional services|additional |Service status value -|183-184 | 2 |Regional reserved 1|regional1 |Service status value -|185-186 | 2 |Regional reserved 2|regional2 |Service status value -|187-188 | 2 |Reserved for future|future1 |Service status value -|189-190 | 2 |Reserved for future|future1 |Service status value -|191-310 |120 |Name of Berth |berth_name |20 6-bit characters -|311-335 | 25 |Longitude |berth_lon |Signed: unit minutes * 0.001 -| | | | |181000 = N/A (default) -|336-359 | 24 |Latitude |berth_lat |Signed: unit minutes * 0.001 -| | | | |91000 = N/A (default) +|Field |Len |Description |Member/Type |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70-70 | 1 |Retransmit flag |retransmit |u|0 = no retransmit (default) + 1 = retransmitted +|71-71 | 1 |Spare | |x|Not used +|72-81 | 10 |DAC |dac |u|AC = 001 +|82-87 | 6 |FID |fid |u|ID = 20 +|88-97 | 10 |Message Linkage ID |linkage |u|nsigned integer +|98-106 | 9 |Berth length |berth_length|u|-510 m + 511 = >= 511m + 0 = N/A (default) +|107-114 | 8 |Berth Water Depth |berth_depth |u|0.1-25.4m in 0.1 steps + 255 = >= 25.5m + 0 = N/A (default) +|115-117 | 3 |Mooring Position |position |u|See below +|118-121 | 4 |Month |month |u|1-12; 0 = N/A (default) +|122-126 | 5 |Day |day |u|1-31; 0 = N/A (default) +|127-131 | 5 |Hour |hour |u|0-23; 24 = N/A (default) +|132-137 | 6 |Minute |minute |u|0-59; 60 = N/A (default) +|138-138 | 1 |Services Availability|availability|u|0 = services types unknown + 1 = services types are known +|139-140 | 2 |Agent |agent |u|Service status value +|141-142 | 2 |Bunker/fuel |fuel |u|Service status value +|143-144 | 2 |Chandler |chandler |u|Service status value +|145-146 | 2 |Stevedore |stevedore |u|Service status value +|147-148 | 2 |Electrical |electrical |u|Service status value +|149-150 | 2 |Potable water |water |u|Service status value +|151-152 | 2 |Customs house |customs |u|Service status value +|153-154 | 2 |Cartage |cartage |u|Service status value +|155-156 | 2 |Crane(s) |crane |u|Service status value +|157-158 | 2 |Lift(s) |lift |u|Service status value +|159-160 | 2 |Medical facilities |medical |u|Service status value +|161-162 | 2 |Navigation repair |navrepair |u|Service status value +|163-164 | 2 |Provisions |provisions |u|Service status value +|165-166 | 2 |Ship repair |shiprepair |u|Service status value +|167-168 | 2 |Surveyor |surveyor |u|Service status value +|169-170 | 2 |Steam |steam |u|Service status value +|171-172 | 2 |Tugs |tugs |u|Service status value +|173-174 | 2 |Waste disposal (solid) |soldwaste |u|Service status value +|175-176 | 2 |Waste disposal (liquid) |liquidwaste |u|Service status value +|177-178 | 2 |Waste disposal (hazardous)|hazardouswaste|u|Service status value +|179-180 | 2 |Reserved ballast exchange |ballast |u|Service status value +|181-182 | 2 |Additional services|additional |u|Service status value +|183-184 | 2 |Regional reserved 1|regional1 |u|Service status value +|185-186 | 2 |Regional reserved 2|regional2 |u|Service status value +|187-188 | 2 |Reserved for future|future1 |u|Service status value +|189-190 | 2 |Reserved for future|future1 |u|Service status value +|191-310 |120 |Name of Berth |berth_name |t|20 6-bit characters +|311-335 | 25 |Longitude |berth_lon |i|Signed: unit minutes * 0.001 + 181000 = N/A (default) +|336-359 | 24 |Latitude |berth_lat |i|Signed: unit minutes * 0.001 + 91000 = N/A (default) |============================================================================== The UTC timestamp refers to the time requested or granted for berthing. @@ -1147,21 +1168,22 @@ with a different layout, deprecated in <<IMO289>>. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70-70 | 1 |Retransmit flag |retransmit|0 = no retransmission (default) -| | | | |1 = retransmitted -|71-71 | 1 |Spare | |Not used -|72-87 | 16 |DAC/FID | |DAC = 001 FID = 25 -|88-89 | 2 |Unit of Quantity |unit |cargounit -|90-99 | 10 |Amount of Cargo |amount |Unsigned integer -| | | | |0 = N/A (default) -|100-103 | 4 |Cargo code |code |cargocode -|104-116 | 13 |Cargo subtype |subtype |Unsigned integer +|Field |Len |Description |Membe |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70-70 | 1 |Retransmit flag |retransmit|b|0 = no retransmit (default) + 1 = retransmitted +|71-71 | 1 |Spare | |x|Not used +|72-81 | 10 |DAC |dac |u|DAC = 001 +|82-87 | 6 |FID |fid |u|FID = 25 +|88-89 | 2 |Unit of Quantity |unit |u|cargounit +|90-99 | 10 |Amount of Cargo |amount |u|Unsigned integer + 0 = N/A (default) +|100-103 | 4 |Cargo code |code |u|cargocode +|104-116 | 13 |Cargo subtype |subtype |u|Unsigned integer |============================================================================== The last two fields may repeat to describe up to 28 subcargos. The count @@ -1226,35 +1248,37 @@ A message 6 subtype. DAC = 001 FID = 28. Variable length: 204-1029 bits. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70-70 | 1 |Retransmit flag |retransmit|0 = no retransmission (default) -| | | | |1 = retransmitted -|71-71 | 1 |Spare | |Not used -|72-87 | 16 |DAC/FID | |DAC = 001 FID = 28 -|88-97 | 10 |Message Linkage ID|linkage |Unsigned integer -|98-100 | 3 |Sender Class |sender |0 = ship (default), 1 = authority -| | | | |27 = reserved for future use -|101-105 | 5 |Route Type |rtype |See table below -|106-109 | 4 |Start month |month |1-12, 0=N/A (default) -|110-114 | 5 |Start day |day |1-31, 0=N/A (default) -|115-119 | 5 |Start hour |hour |0-23, 24=N/A (default) -|120-125 | 6 |Start minute |minute |0-59, 60=N/A (default) -|126-143 | 18 |Duration |duration |Minutes from start time -| | | | |0 = cancel route -| | | | |262,143 = not available = default -|144-148 | 5 | |waycount |Waypoint count (1-16) -| | | | |Values 17-31 are not used -|149-176 | 28 |Longitude |lon |Signed: unit minutes * 0.0001 -| | | | |181000 = N/A (default) -| | | | |E positive, W negative -|177-203 | 27 |Latitude |lat |Signed: unit minutes * 0.0001 -| | | | |91000 = N/A (default) -| | | | |N positive, S negative +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70-70 | 1 |Retransmit flag |retransmit|b|0 = no retransmission (default), + 1 = retransmitted. +|71-71 | 1 |Spare | |x|Not used +|72-81 | 10 |DAC |dac |u|DAC = 001 +|82-87 | 6 |FID |fid |u|FID = 28 +|88-97 | 10 |Message Linkage ID|linkage |u|Unsigned integer +|98-100 | 3 |Sender Class |sender |u|0 = ship (default), + 1 = authority, + 27 = reserved for future use +|101-105 | 5 |Route Type |rtype |u|See table below +|106-109 | 4 |Start month |month |u|1-12, 0=N/A (default) +|110-114 | 5 |Start day |day |u|1-31, 0=N/A (default) +|115-119 | 5 |Start hour |hour |u|0-23, 24=N/A (default) +|120-125 | 6 |Start minute |minute |u|0-59, 60=N/A (default) +|126-143 | 18 |Duration |duration |u|Minutes from start time, + 0 = cancel route, + 262,143 = N/A (default), +|144-148 | 5 | |waycount |u|Waypoint count (1-16), + Values 17-31 are not used. +|149-176 | 28 |Longitude |lon |i|Signed: unit minutes * 0.0001, + 181000 = N/A (default), + E positive, W negative. +|177-203 | 27 |Latitude |lat |i|Signed: unit minutes * 0.0001, + 91000 = N/A (default), + N positive, S negative. |============================================================================== The final pair of fields in the table above is a waypoint. The message may @@ -1287,18 +1311,19 @@ via the Message Linkage ID field. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70-70 | 1 |Retransmit flag |retransmit |0 = no retransmission (default) -| | | | |1 = retransmitted -|71-71 | 1 |Spare | |Not used -|72-87 | 16 |DAC/FID | |DAC = 001 FID = 30 -|88-97 | 10 |Message Linkage ID|linkage |Unsigned integer -|98-? | 6-930 |Description |description|String +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70-70 | 1 |Retransmit flag |retransmit |u|0 = no retransmit (default), + 1 = retransmitted +|71-71 | 1 |Spare | |x|Not used +|72-81 | 10 |DAC |dac |u|DAC = 001 +|82-87 | 6 |FID |fid |u|FID = 30 +|88-97 | 10 |Message Linkage ID|linkage |u|Unsigned integer +|98-? | 6-930 |Description |description|t|String |============================================================================== There is an equivalent subtype of message 8 that is a broadcast description. @@ -1313,31 +1338,34 @@ different bit widths for the latitude and longitude fields. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70-70 | 1 |Retransmit flag |retransmit|0 = no retransmission (default) -| | | | |1 = retransmitted -|71-71 | 1 |Spare | |Not used -|72-87 | 16 |DAC/FID | |DAC = 001 FID = 32 -|88-91 | 4 |Month |month |1-12; 0 = N/A (default) -|92-96 | 5 |Day |day |1-31; 0 = N/A (default) -|97-121 | 25 |Longitude |lon |Signed: unit minutes * 0.001 -| | | | |181000 = N/A (default) -|122-145 | 24 |Latitude |lat |Signed: unit minutes * 0.001 -| | | | |91000 = N/A (default) -|146-150 | 5 |From UTC Hour |from_hour |0-23, 24 = N/A (default) -|151-156 | 6 |From UTC Minute |from_min |0-59, 60 = N/A (default) -|157-161 | 5 |To UTC Hour |to_hour |0-23, 24 = N/A (default) -|162-167 | 6 |To UTC Minute |to_min |0-59, 60 = N/A (default) -|168-176 | 9 |Current Dir. Predicted |cdir |0-359 degrees from true north -| | | | |360 = N/A (default) -|177-184 | 8 |Current Speed Predicted|cspeed |0-250, uniits of 0.1 knots. -| | | | |251 = speed >= 25.1 knots -| | | | |255 = N/A (default) +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 6 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70-70 | 1 |Retransmit flag |retransmit|b|0 = no retransmit (default), + 1 = retransmitted +|71-71 | 1 |Spare | |x|Not used +|72-81 | 10 |DAC |dac |u|DAC = 001 +|82-87 | 6 |FID |fid |u|FID = 32 +|88-91 | 4 |Month |month |u|1-12; 0 = N/A (default) +|92-96 | 5 |Day |day |u|1-31; 0 = N/A (default) +|97-121 | 25 |Longitude |lon |i|Unit = minutes * 0.001, + 181000 = N/A (default), + E positive, W negative. +|122-145 | 24 |Latitude |lat |i|Unit = minutes * 0.001. + 91000 = N/A (default), + N positive, S negative. +|146-150 | 5 |From UTC Hour |from_hour |u|0-23, 24 = N/A (default) +|151-156 | 6 |From UTC Minute |from_min |u|0-59, 60 = N/A (default) +|157-161 | 5 |To UTC Hour |to_hour |u|0-23, 24 = N/A (default) +|162-167 | 6 |To UTC Minute |to_min |u|0-59, 60 = N/A (default) +|168-176 | 9 |Current Dir. Predicted |cdir |u|0-359 deg. from true north, + 360 = N/A (default). +|177-184 | 8 |Current Speed Predicted|cspeed |u|0-250, units of 0.1 knots, + 251 = speed >= 25.1 knots, + 255 = N/A (default). |============================================================================= The group of fields from longitude on may repeat twice more to convey up to @@ -1352,19 +1380,19 @@ MMSIs included. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 7 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-69 | 30 |MMSI number 1 |mmsi1 |Unsigned integer: 9 digits -|70-71 | 2 |Spare | |Not used -|62-101 | 30 |MMSI number 2 |mmsi2 |Unsigned integer: 9 digits -|102-103 | 2 |Spare | |Not used -|104-133 | 30 |MMSI number 3 |mmsi3 |Unsigned integer: 9 digits -|134-135 | 2 |Spare | |Not used -|136-165 | 30 |MMSI number 4 |mmsi4 |Unsigned integer: 9 digits -|166-167 | 2 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 7 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-69 | 30 |MMSI number 1 |mmsi1 |u|Unsigned integer: 9 digits +|70-71 | 2 |Spare | |x|Not used +|62-101 | 30 |MMSI number 2 |mmsi2 |u|Unsigned integer: 9 digits +|102-103 | 2 |Spare | |x|Not used +|104-133 | 30 |MMSI number 3 |mmsi3 |u|Unsigned integer: 9 digits +|134-135 | 2 |Spare | |x|Not used +|136-165 | 30 |MMSI number 4 |mmsi4 |u|Unsigned integer: 9 digits +|166-167 | 2 |Spare | |x|Not used |============================================================================== === Type 8: Binary Broadcast Message === @@ -1376,15 +1404,15 @@ maximum of 1008 bits (up to 5 AIVDM sentence payloads). [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 8 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-49 | 10 |Designated Area Code |dac |Unsigned integer -|50-55 | 6 |Functional ID |fid |Unsigned integer -|56 |952 |Data |data |Binary data -| | | | |May be shorter than 952 bits. +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |Designated Area Code |dac |u|Unsigned integer +|50-55 | 6 |Functional ID |fid |u|Unsigned integer +|56 |952 |Data |data |d|Binary data, + May be shorter than 952 bits. |============================================================================== Interpretation of the binary payload is controlled by DAC/FID as in @@ -1444,90 +1472,93 @@ broadcast of this message of 12 minutes. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 11 -|56-79 | 24 |Latitude |lat |Signed: unit minutes * 0.001 -| | | | |91000 = N/A (default) -|80-104 | 25 |Longitude |lon |Signed: unit minutes * 0.001 -| | | | |181000 = N/A (default) -|105-109 | 5 |Day |day |1-31, 0=N/A (default) -|110-114 | 5 |Hour |hour |0-23, >=24=N/A (default) -|115-120 | 6 |Minute |minute |0-59, >=60=N/A (default) -|121-127 | 7 |Average Wind Speed |wspeed |10-min avg wind speed, knots -| | | | |127 = N/A (default) -|128-134 | 7 |Gust Speed |wgust |10-min max wind speed, knots -| | | | |127 = N/A (default) -|135-143 | 9 |Wind Direction |wdir |0-359, degrees fom true north -| | | | |>=360 = N/A (default) -|144-152 | 9 |Wind Gust Direction|wgustdir |0-359, degrees fom true north -| | | | |>=360 = N/A (default) -|153-163 | 11 |Air Temperature |temperature |Dry bulb temperature, 0.1 deg C -| | | | |-60.0 to +60.0, -| | | | |-1024 = N/A (default) -| | | | |Otherwise, -60deg after scaling. -|164-170 | 7 |Relative Humidity |humidity |0-100%, units of 1% -| | | | |127 = N/A (default) -|171-180 | 10 |Dew Point |dewpoint |-20.0 to +50.0, 0.1 deg C -| | | | |1023 = N/A (default) -| | | | |Otherwise -20.0deg after scaling -|181-189 | 9 |Air Pressure |pressure |800-1200hPa, 1hPa -| | | | |402 = pressure >= 1201 hPa -| | | | |403 - N/A (default) -| | | | |Otherwise, add 400 to value -|190-191 | 2 |Pressure Tendency |pressuretend|0 = steady -| | | | |1 = decreasing -| | | | |2 = increasing -| | | | |3 - N/A (default) -|192-199 | 8 |Horiz. Visibility |visibility |0-25.0, units of 0.1nm -| | | | |>= 250 = N/A (default) -|200-208 | 9 |Water Level |waterlevel |-10.0 to +30.0 in 0.1m -| | | | |1923 = N/A (default) -| | | | |Otherwise, -10m after scaling -|209-210 | 2 |Water Level Trend |leveltrend |0 = steady -| | | | |1 = decreasing -| | | | |2 = increasing -| | | | |3 - N/A (default) -|211-218 | 8 |Surface Current Speed |cspeed |0.0-25.0 knots, units 0.1 knot -|219-227 | 9 |Surface Current Direction |cdir |0-359, degrees fom true north -| | | | |>=360 = N/A (default) -|228-235 | 8 |Current Speed #2 |cspeed2 |0.0-25.0 knots, units 0.1 knot -| | | | |>=251 = N/A (default) -|236-244 | 9 |Current Direction #2 |cdir2 |0-359, degrees fom true north -| | | | |>=360 = N/A (default) -|245-249 | 5 |Measurement Depth #2 |cdepth2 |0-30m down, units 0.1m -| | | | |31 = N/A (default) -|250-257 | 8 |Current Speed #3 |cspeed3 |0.0-25.0 knots, units 0.1 knot -| | | | |>=251 = N/A (default) -|258-266 | 9 |Current Direction #3 |cdir3 |0-359, degrees fom true north -| | | | |>=360 = N/A (default) -|267-271 | 5 |Measurement Depth #3 |curdepth3 |0-30m down, units 0.1m -| | | | |31 = N/A (default) -|272-279 | 8 |Wave height |waveheight|0-25m, units 0.1m -| | | | |>=251 = N/A (default) -|280-285 | 6 |Wave period |waveperiod|Seconds, 0-60, units 1s -| | | | |>= 61 = N/A (default) -|286-294 | 9 |Wave direction |wavedir |0-359, degrees fom true north -| | | | |>=360 = N/A (default) -|295-302 | 8 |Swell height |swellheight|0-25m, units 0.1m -| | | | |>=251 = N/A (default) -|303-308 | 6 |Swell period |swellperiod|Seconds, 0-60, units 1s -| | | | |>= 61 = N/A (default) -|309-317 | 9 |Swell direction |swelldir |0-359, degrees fom true north -| | | | |>=360 = N/A (default) -|318-321 | 4 |Sea state |seastate |Beaufort scale, 0-12 -| | | | |>=13 = N/A (default) -|322-331 | 10 |Water Temperature |watertemp |-10.0 to 50.0 C, 0.1 deg -| | | | |>=601 = N/A (default) -| | | | |Otherwise -10.0m after scaling -|332-334 | 3 |Precipitation |precipitation |preciptype -|335-343 | 9 |Salinity |salinity |0.0-50.0%, units of 0.1% -| | | | |>=500 = N/A (default) -|344-345 | 2 |Ice |ice |Yes/No -|346-351 | 6 |Spare | |Not used +|Field |Len |Description |Member |u|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 16 +|56-79 | 24 |Latitude |lat |i|Unit = minutes * 0.001, + 91000 = N/A (default), + E positive, W negative. +|80-104 | 25 |Longitude |lon |i|Unit = minutes * 0.001, + 181000 = N/A (default), + N positive, S negative. +|105-109 | 5 |Day |day |u|1-31, 0=N/A (default) +|110-114 | 5 |Hour |hour |u|0-23, >=24=N/A (default) +|115-120 | 6 |Minute |minute |u|0-59, >=60=N/A (default) +|121-127 | 7 |Average Wind Speed |wspeed |u|10-min avg wind speed, knots, + 127 = N/A (default). +|128-134 | 7 |Gust Speed |wgust |u|10-min max wind speed, knots, + 127 = N/A (default). +|135-143 | 9 |Wind Direction |wdir |u|0-359, degrees fom true north + >=360 = N/A (default) +|144-152 | 9 |Wind Gust Direction|wgustdir |u|0-359, degrees fom true north + >=360 = N/A (default) +|153-163 | 11 |Air Temperature |temperature |u|Dry bulb temp: 0.1 deg C + -60.0 to +60.0, + -1024 = N/A (default), + else -60deg after scaling. +|164-170 | 7 |Relative Humidity |humidity |u|0-100%, units of 1%, + 127 = N/A (default). +|171-180 | 10 |Dew Point |dewpoint |u|-20.0 to +50.0: 0.1 deg C, + 1023 = N/A (default), + else -20.0deg after scaling. +|181-189 | 9 |Air Pressure |pressure |u|800-1200hPa: units 1hPa, + 402 = pressure >= 1201 hPa, + 403 - N/A (default). + else add 400 to value. +|190-191 | 2 |Pressure Tendency |pressuretend|u|0 = steady, + 1 = decreasing, + 2 = increasing, + 3 - N/A (default). +|192-199 | 8 |Horiz. Visibility |visibility |u|0-25.0, units of 0.1nm + >= 250 = N/A (default) +|200-208 | 9 |Water Level |waterlevel |u|-10.0 to +30.0 in 0.1m, + 1923 = N/A (default). + else -10m after scaling. +|209-210 | 2 |Water Level Trend |leveltrend |u|0 = steady, + 1 = decreasing, + 2 = increasing, + 3 - N/A (default). +|211-218 | 8 |Surface Current Speed |cspeed |u|0.0-25.0 knots: units 0.1 knot +|219-227 | 9 |Surface Current Direction |cdir |u|0-359: deg from true north, + >=360 = N/A (default) +|228-235 | 8 |Current Speed #2 |cspeed2 |u|0.0-25.0 in units of 0.1 knot, + >=251 = N/A (default). +|236-244 | 9 |Current Direction #2 |cdir2 |u|0-359: deg. fom true north, + >=360 = N/A (default) +|245-249 | 5 |Measurement Depth #2 |cdepth2 |u|0-30m down: units 0.1m, + 31 = N/A (default). +|250-257 | 8 |Current Speed #3 |cspeed3 |u|0.0-25.0: units of 0.1 knot, + >=251 = N/A (default). +|258-266 | 9 |Current Direction #3 |cdir3 |u|0-359: degrees fom true north, + >=360 = N/A (default). +|267-271 | 5 |Measurement Depth #3 |curdepth3 |u|0-30m down: units 0.1m, + 31 = N/A (default). +|272-279 | 8 |Wave height |waveheight|u|0-25m: units of 0.1m, + >=251 = N/A (default). +|280-285 | 6 |Wave period |waveperiod|u|Seconds 0-60: + >= 61 = N/A (default). +|286-294 | 9 |Wave direction |wavedir |u|0-359: deg. fom true north, + >=360 = N/A (default). +|295-302 | 8 |Swell height |swellheight|u|0-25m: units of 0.1m + >=251 = N/A (default). +|303-308 | 6 |Swell period |swellperiod|u|Seconds 0-60: + >= 61 = N/A (default). +|309-317 | 9 |Swell direction |swelldir |u|0-359: deg. fom true north, + >=360 = N/A (default). +|318-321 | 4 |Sea state |seastate |u|Beaufort scale: 0-12, + >=13 = N/A (default). +|322-331 | 10 |Water Temperature |watertemp |u|-10.0 to 50.0: units 0.1 C, + >=601 = N/A (default). + else -10.0m after scaling. +|332-334 | 3 |Precipitation |precipitation |u|preciptype +|335-343 | 9 |Salinity |salinity |u|0.0-50.0%: units 0.1%, + >=500 = N/A (default) +|344-345 | 2 |Ice |ice |b|Yes/No +|346-351 | 6 |Spare | |x|Not used |============================================================================== <<IMO236>> says "If there is no data available, default value to be @@ -1603,26 +1634,27 @@ Described in <<IMO236>> but deprecated by <<IMO289>>. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 8 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 13 -|56-175 |120 |Reason For Closing |dangerous |20 6-bit characcters -|176-295 |120 |Location Of Closing From|dangerous |20 6-bit characcters -|296-415 |120 |Location of Closing To |dangerous |20 6-bit characcters -|416-425 | 10 |Radius extension |radius |0-1000, 10001 = N/A (default) -|426-427 | 2 |Unit of extension |extunit |0=m, 1=km, 2=nm, 3=cables -|428-432 | 5 |From day |fday |1-31, 0=N/A (default) -|433-436 | 4 |From month |fmonth |1-12, 0=N/A (default) -|437-441 | 5 |From hour |fhour |0-23, 24=N/A (default) -|442-447 | 6 |From minute |fminute |0-59, 60=N/A (default) -|448-452 | 5 |To day |tday |1-31, 0=N/A (default) -|453-456 | 4 |To month |tmonth |1-12, 0=N/A (default) -|457-461 | 5 |To hour |thour |0-23, 24=N/A (default) -|462-467 | 6 |To minute |tminute |0-59, 60=N/A (default) -|468-471 | 4 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 13 +|56-175 |120 |Reason For Closing |dangerous|t|20 6-bit characcters +|176-295 |120 |Location Of Closing From|dangerous|t|20 6-bit characcters +|296-415 |120 |Location of Closing To |dangerous|t|20 6-bit characcters +|416-425 | 10 |Radius extension |radius |u|0-1000, 10001 = N/A (default) +|426-427 | 2 |Unit of extension |extunit |u|0=m, 1=km, 2=nm, 3=cables +|428-432 | 5 |From day |fday |u|1-31, 0=N/A (default) +|433-436 | 4 |From month |fmonth |u|1-12, 0=N/A (default) +|437-441 | 5 |From hour |fhour |u|0-23, 24=N/A (default) +|442-447 | 6 |From minute |fminute |u|0-59, 60=N/A (default) +|448-452 | 5 |To day |tday |u|1-31, 0=N/A (default) +|453-456 | 4 |To month |tmonth |u|1-12, 0=N/A (default) +|457-461 | 5 |To hour |thour |u|0-23, 24=N/A (default) +|462-467 | 6 |To minute |tminute |u|0-59, 60=N/A (default) +|468-471 | 4 |Spare | |x|Not used |============================================================================== ==== IMO236 Extended Ship Static and Voyage Related Data ==== @@ -1634,16 +1666,17 @@ Deprecated in <<IMO289>>. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 8 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 15 -|55-66 | 11 |Air Draught |airdraught|Unsigned integer, height in m -| | | | |0 = N/A (default) -| | | | |2047 = >= 2047 m -|67-71 | 5 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 15 +|55-66 | 11 |Air Draught |airdraught|u|Height in meters, + 0 = N/A (default), + 2047 = >= 2047 m, +|67-71 | 5 |Spare | |x|Not used |============================================================================== ==== VTS-Generated/Synthetic targets ==== @@ -1654,25 +1687,29 @@ bits. This message is laid out identically in <<IMO236>> and [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 8 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 17 -|56-57 | 2 |Identifier type |idtype |0 = id is the MMSI number -| | | | |1 = id is the IMO number -| | | | |2 = id is the call sign -| | | | |3 = Other (default) -|58-99 | 42 |Target identifier |See below |Target ID data. -|100-103 | 4 |Spare | |Not used -|104-127 | 24 |Latitude |lat |Signed: unit minutes * 0.001 -| | | | |91000 = N/A (default) -|128-152 | 25 |Longitude |lon |Signed: unit minutes * 0.001 -| | | | |181000 = N/A (default) -|153-161 | 9 |Course Over Ground |course |0-359 Relative to true north, -|162-167 | 6 |Time Stamp |second |Second of UTC timestamp -|168-177 | 10 |Speed Over Ground |speed |0-254 in knots, 255 = N/A +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 17 +|56-57 | 2 |Identifier type |idtype |u|0 = id is the MMSI number, + 1 = id is the IMO number, + 2 = id is the call sign, + 3 = Other (default). +|58-99 | 42 |Target identifier |See below |u|Target ID data. +|100-103 | 4 |Spare | |x|Not used +|104-127 | 24 |Latitude |lat |i|Signed: unit minutes * 0.001, + 91000 = N/A (default), + N positive, S negative. +|128-152 | 25 |Longitude |lon |i|Signed: unit minutes * 0.001, + 181000 = N/A (default), + E positive, W negative. +|153-161 | 9 |Course Over Ground |course |u|0-359 deg from true north, + 360 = N/A (default). +|162-167 | 6 |Time Stamp |second |u|Second of UTC timestamp. +|168-177 | 10 |Speed Over Ground |speed |u|0-254 in knots, 255 = N/A. |============================================================================== The interpretation of the target identifier field depends on the ppreceding type @@ -1701,27 +1738,30 @@ length: 360 bits. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 8 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 29 -|56-65 | 10 |Message Linkage ID |linkage |Unsigned integer -|66-185 | 120 |Name of Signal Station|station |20 6-bit chars -|186-210 | 25 |Longitude |lon |Signed: unit minutes * 0.001 -| | | | |181000 = N/A (default) -|211-234 | 24 |Latitude |lat |Signed: unit minutes * 0.001 -| | | | |91000 = N/A (default) -|235-236 | 2 |Status of Signal |status |0=N/A (default -| | | | |1 = In regular service -| | | | |2 = Irregular service -| | | | |3 = Reserved for future use -|237-241 | 5 |Signal In Service |signal |See below -|242-246 | 5 |UTC hour |hour |0-23, 24=N/A (default) -|247-252 | 6 |UTC minute |minute |0-59, 60=N/A (default) -|253-257 | 5 |Expected Next Signal |nextsignal|See below -|258-359 | 102 |Spare | |Not used +|Field |Len |Description |Member |u|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 19 +|56-65 | 10 |Message Linkage ID |linkage |u|Unsigned integer +|66-185 | 120 |Name of Signal Station|station |t|20 6-bit chars +|186-210 | 25 |Longitude |lon |i|Unit = minutes * 0.001 + 181000 = N/A (default) + E positive, W negative. +|211-234 | 24 |Latitude |lat |i|Unit = minutes * 0.001 + 91000 = N/A (default) + N positive, S negative. +|235-236 | 2 |Status of Signal |status |u|0=N/A (default + 1 = In regular service + 2 = Irregular service + 3 = Reserved for future use +|237-241 | 5 |Signal In Service |signal |u|See below +|242-246 | 5 |UTC hour |hour |u|0-23, 24=N/A (default) +|247-252 | 6 |UTC minute |minute |u|0-59, 60=N/A (default) +|253-257 | 5 |Expected Next Signal |nextsignal|u|See below +|258-359 | 102 |Spare | |x|Not used |============================================================================== .Marine Traffic Signal: Signal values @@ -1763,55 +1803,58 @@ length: 360 bits. .Weather observation report from ship: Non-WMO variant [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 8 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 29 -|56-56 | 1 |Variant |wmo |Always 0 in this variant -|57-176 | 120 |Location |location |20 6-bit characters -|177-201 | 25 |Longitude |lon |Signed: unit minutes * 0.001 -| | | | |181000 = N/A (default) -|202-225 | 24 |Latitude |lat |Signed: unit minutes * 0.001 -| | | | |91000 = N/A (default) -|226-230 | 5 |UTC Day |day |1-31, 0=N/A (default) -|231-235 | 5 |UTC hour |hour |0-23, 24=N/A (default) -|236-241 | 6 |UTC minute |minute |0-59, 60=N/A (default) -|242-245 | 4 |Present Weather |weather |wmocode: 0-15 -|246-246 | 1 |Visibility Limit |vislimit |See below -|247-253 | 7 |Horiz. Visibility |visibility|0.0-12.6nm, units of nm * 0.1 -| | | | |127 = N/A (default) -|254-260 | 7 |Relative Humidity |humidity |0-100%, units of 1% -| | | | |127 = N/A (default) -|261-267 | 7 |Average Wind Speed |wspeed |10-min avg wind speed, knots -| | | | |127 = N/A (default) -|268-276 | 9 |Wind Direction |wdir |0-359, degrees fom true north -| | | | |360 = N/A (default) -|277-285 | 9 |Air Pressure |pressure |800-1200hPa, 1hPa -| | | | |402 = pressure >= 1201 hPa -| | | | |403 - N/A (default) -| | | | |Otherwise, add 400 to value -|286-289 | 4 |Pressure Tendency |pressuretend|WMO FM13 code -|290-300 | 11 |Air Temperature |airtemp |Dry bulb temperature, 0.1degC -| | | | |-60.0 to +60.0 -| | | | |-1024 = N/A (default) -|301-310 | 10 |Water Temperature |watertemp |-10.0 to 50.0 C, 0.1 deg -| | | | |601 = N/A (default) -| | | | |Otherwuse -10m after scaling -|311-316 | 6 |Wave period |waveperiod|Seconds, 0-60, units 1s -| | | | |63 = N/A (default) -|317-324 | 8 |Wave height |waveheight|0-25m, units 0.1m -| | | | |255 = N/A (default) -|325-333 | 9 |Wave direction |wavedir |0-359, degrees fom true north -| | | | |360 = N/A (default) -|334-341 | 8 |Swell height |swellheight|0-25m, units 0.1m -| | | | |255 = N/A (default) -|342-350 | 9 |Swell direction |swelldir |0-359, degrees fom true north -| | | | |360 = N/A (default) -|351-356 | 6 |Swell period |swellperiod|Seconds, 0-60, units 1s -| | | | |63 = N/A (default) -|357-359 | 3 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 21 +|56-56 | 1 |Variant |wmo |b|Always 0 in this variant +|57-176 | 120 |Location |location |t|20 6-bit characters +|177-201 | 25 |Longitude |lon |i|Unit = minutes * 0.001, + 181000 = N/A (default), + E positive, W negative. +|202-225 | 24 |Latitude |lat |i|Unit = minutes * 0.001, + 91000 = N/A (default), + N positive, S negative. +|226-230 | 5 |UTC Day |day |u|1-31, 0=N/A (default) +|231-235 | 5 |UTC hour |hour |u|0-23, 24=N/A (default) +|236-241 | 6 |UTC minute |minute |u|0-59, 60=N/A (default) +|242-245 | 4 |Present Weather |weather |u|wmocode: 0-15 +|246-246 | 1 |Visibility Limit |vislimit |u|See below +|247-253 | 7 |Horiz. Visibility |visibility |u|0.0-12.6nm, units = nm*0.1, + 127 = N/A (default). +|254-260 | 7 |Relative Humidity |humidity |u|0-100%: units of 1%, + 127 = N/A (default). +|261-267 | 7 |Average Wind Speed |wspeed |u|10-min avg wind speed knots, + 127 = N/A (default). +|268-276 | 9 |Wind Direction |wdir |u|0-359, deg. fom true north, + 360 = N/A (default). +|277-285 | 9 |Air Pressure |pressure |u|800-1200hPa: units 1hPa, + 402 = pressure >= 1201 hPa, + 403 - N/A (default), + else add 400 to value, +|286-289 | 4 |Pressure Tendency |pressuretend|u|WMO FM13 code +|290-300 | 11 |Air Temperature |airtemp |u|Dry bulb temp: units 0.1C, + -60.0 to +60.0, + -1024 = N/A (default). +|301-310 | 10 |Water Temperature |watertemp |u|-10.0 to 50.0 in 0.1 C, + 601 = N/A (default), + else -10m after scaling. +|311-316 | 6 |Wave period |waveperiod |u|Seconds: 0-60, + 63 = N/A (default). +|317-324 | 8 |Wave height |waveheight |u|0-25m in units of 0.1m, + 255 = N/A (default). +|325-333 | 9 |Wave direction |wavedir |u|0-359: deg. fom true north, + 360 = N/A (default). +|334-341 | 8 |Swell height |swellheight |u|0-25m: units 0.1m, + 255 = N/A (default) +|342-350 | 9 |Swell direction |swelldir |u|0-359: deg, fom true north, + 360 = N/A (default). +|351-356 | 6 |Swell period |swellperiod |u|Seconds: 0-60, + 63 = N/A (default). +|357-359 | 3 |Spare | |x|Not used |============================================================================== The vislimit bit, when on, indicates that the maximum range of the @@ -1839,146 +1882,147 @@ The standard (<<IMO289>>) does not list the WMO FM13 codes. .Weather observation report from ship: WMO variant [frame="topbot",options="header"] |============================================================================== -|0-5 | 6 |Message Type |type |Unsigned integer: 8 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 21 -|56-56 | 1 |Variant |wmo |Always 1 in this variant -|57-72 | 16 |Longitude |lon |Unsigned: minutes * 0.01 -| | | | |E positive, W negative -| | | | |Lon = (value / 100) – 180 -| | | | |65536 = N/A (default) -|73-87 | 15 |Latitude |lat |Unsigned: unit minutes * 0.01 -| | | | |N positive, S negative -| | | | |Lat = (value / 100) – 90 -| | | | |32767 = N/A (default) -|88-91 | 4 |UTC Month |month |1-12, 15=N/A (default) -|92-97 | 6 |UTC Day |day |1-31, 63=N/A (default) -|98-102 | 5 |UTC hour |hour |0-23, 31=N/A (default) -|103-105 | 3 |UTC minute |minute |0-50, 7=N/A (default) -| | | | |Minute = (value * 10) -|106-112 | 7 |Course Over Ground |course |0-359, unit = 1 degree -| | | | |average over last 10 minutes. -|113-117 | 5 |Speed Over Ground |speed |0-14.5m/s -| | | | |SOG = (value * 0.5) for 0-29 -| | | | |30 = 15 m/s and more -| | | | |average over last 10 minutes. -| | | | |31 = N/A (default) -|118-124 | 7 |Heading of the ship |heading |5-360, unit of 5 degrees -| | | | |HDT = (value * 5) for 1-72 -| | | | |average over last 10 minutes. -| | | | |127 = N/A (default) -|125-135 | 11 |Pressure at sea level |pressure |90-1100 hPa -| | | | |P = (value/10)+900 for 0-2000 -|136-145 | 10 |Pressure Change |pchange |-50-+50hPa -| | | | |Chg = (value/10)-50 for 0-100 -| | | | |Averaged over last 3 hours -| | | | |1023 = N/A (default) -|146-149 | 4 |Pressure Tendency |ptend |WMO BUFR table 010063 -| | | | |Averaged over last 3 hours -| | | | |0-8, 15 = N/A -|150-156 | 7 |True Wind Direction |twinddir |005-360 deg -| | | | |average over last 10 minutes -| | | | |dir = (value*5), value 1-72 -| | | | |0 = calm -| | | | |127 = N/A (default) -|157-164 | 8 |True Wind Speed |twindspeed|0-127 m/s -| | | | |average over last 10 minutes -| | | | |speed = value * 0.5 -| | | | |255 = N/A (default) -|165-171 | 7 |Relative Wind Direction|rwinddir |005-360 deg -| | | | |average over last 10 minutes -| | | | |dir = (value*5) for 1-72 -| | | | |0 = calm -| | | | |127 = N/A (default) -|172-179 | 8 |Relative Wind Speed |rwindspeed|0-127 m/s -| | | | |average over last 10 minutes -| | | | |speed = value * 0.5 for 0-254 -| | | | |255 = N/A (default) -|180-187 | 8 |Maximum Gust Speed |mgustspeed|0-127 m/s -| | | | |speed = value * 0.5 for 0-254 -| | | | |255 = N/A (default) -|188-194 | 7 |Maximum Gust Direction |mgustdir |005-360 deg -| | | | |dir = (value*5) for 1-72 -| | | | |0 = calm -| | | | |127 = N/A (default) -|195-204 | 10 |Air Temperature |airtemp |Dry bulb temperature, 0.1degC -| | | | |223-323K (c.-50C - +50C). -| | | | |T = (value/10)+223 for 0-1000 -| | | | |1023 = N/A (default) -|205-211 | 7 |Relative Humidity |humidity |0-100%, units of 1% -| | | | |127 = N/A (default) -|212-220 | 9 |Sea Surface Temperature|surftemp |268-318K (c.-5C - +45C) -| | | | |T = (value/10)+268 for 0-500 -| | | | |511 = N/A (default) -|221-226 | 6 |Horiz. Visibility |visibility|0-50000m -| | | | |Vis = (value**2)*13.073 for 0-62 -| | | | |63 = N/A (default) -|227-235 | 9 |Present Weather |weather |BUFR table 020003 -| | | | |Codes 0-510 -| | | | |511 = N/A (default) -|236-240 | 5 |Past Weather 1 |pweather1 |BUFR table 020004 -| | | | |Codes 0-30 -| | | | |31 = N/A (default) -|241-245 | 5 |Past Weather 2 |pweather2 |BUFR table 020004 -| | | | |Codes 0-30 -| | | | |31 = N/A (default) -|246-249 | 4 |Total Cloud Cover |totalcloud|0-100% -| | | | |Cover = value * 10% for 0-10 -| | | | |15 = N/A (default) -|250-253 | 4 |Cloud amount (low) |lowclouda |0-14: BUFR table 020011 -| | | | |15 = N/A (default) -|254-259 | 6 |Cloud type (low) |lowcloudt |0-62: BUFR table 020012 -| | | | |63 = N/A (default) -|260-265 | 6 |Cloud type (middle) |midcloudt |0-62: BUFR table 020012 -| | | | |63 = N/A (default) -|266-271 | 6 |Cloud type (high) |highcloudt|0-62: BUFR table 020012 -| | | | |63 = N/A (default) -|272-278 | 7 |Height of cloud base |cloudbase |0-2500m -| | | | |h = (value**2)*.0.16 for 0-125 -| | | | |126 = more than 2500m -| | | | |127 = N/A (default) -|279-283 | 5 |Period of Wind Waves |wwperiod |Period in seconds, 0-30 -| | | | |31 = N/A (default) -|284-289 | 6 |Height of Wind Waves |wwheight |Height in meters, 0-30 -| | | | |h = (value * 0.5) for 0-60 -| | | | |63 = N/A (default) -|290-295 | 6 |First Swell Direction |swelldir1 |10-360 deg -| | | | |dir = (value*10) for 1-36 -| | | | |0 = calm -| | | | |63 = N/A (default) -|296-300 | 5 |First Swell Period |swperiod1 |Period in seconds, 0-30 -| | | | |31 = N/A (default) -|301-306 | 6 |First Swell Height |swheight1 |Height in meters, 0-30 -| | | | |h = (value * 0.5) for 0-60 -| | | | |63 = N/A (default) -|307-312 | 6 |Second Swell Direction |swelldir2 |10-360 deg -| | | | |dir = (value*10) for 1-36 -| | | | |0 = calm -| | | | |63 = N/A (default) -|313-317 | 5 |Second Swell Period |swperiod2 |Period in seconds, 0-30 -| | | | |31 = N/A (default) -|318-323 | 6 |Second Swell Height |swheight2 |Height in meters, 0-30 -| | | | |h = (value * 0.5) for 0-60 -| | | | |63 = N/A (default) -|324-330 | 7 |Ice deposit (thickness)|icedeposit|0-126cm -| | | | |127 = N/A (default) -|331-333 | 3 |Rate of Ice Accretion |icerate |0-6: BUFR table 020032 -| | | | |7 = N/A (default) -|334-336 | 3 |Cause of Ice Accretion |icecause |0-6: BUFR table 020033 -| | | | |7 = N/A (default) -|337-341 | 5 |Sea Ice Concentration |seaice |0-30: BUFR table 020034 -| | | | |31 = N/A (default) -|342-345 | 4 |Amount and Type of Ice |icetype |0-14: BUFR table 020035 -| | | | |15 = N/A (default) -|346-350 | 5 |Ice Situation |icestate |0-30: BUFR table 020036 -| | | | |31 = N/A (default) -|351-355 | 5 |Ice Development |icedevel |0-30: BUFR table 020037 -| | | | |31 = N/A (default) -|356-359 | 4 |Bearing of Ice Edge |icebearing|45-360 deg -| | | | |dir = (value*45) for 1-8 -| | | | |15 = N/A (default) +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 21 +|56-56 | 1 |Variant |wmo |u|Always 1 in this variant +|57-72 | 16 |Longitude |lon |i|Unsigned: minutes * 0.01, + E positive, W negative, + Lon = (value / 100) – 180, + 65536 = N/A (default). +|73-87 | 15 |Latitude |lat |i|Unsigned: minutes * 0.01, + N positive, S negative, + Lat = (value / 100) – 90, + 32767 = N/A (default). +|88-91 | 4 |UTC Month |month |u|1-12, 15=N/A (default) +|92-97 | 6 |UTC Day |day |u|1-31, 63=N/A (default) +|98-102 | 5 |UTC hour |hour |u|0-23, 31=N/A (default) +|103-105 | 3 |UTC minute |minute |u|0-50, 7=N/A (default), + Minute = (value * 10). +|106-112 | 7 |Course Over Ground |course |u|0-359, unit = 1 degree, + average over last 10 minutes. +|113-117 | 5 |Speed Over Ground |speed |u|0-14.5m/s: + SOG = (value * 0.5) for 0-29, + 30 = 15 m/s and more, + average over last 10 minutes. + 31 = N/A (default) +|118-124 | 7 |Heading of the ship |heading |u|5-360: units of 5 degrees, + HDT = (value * 5) for 1-72, + average over last 10 minutes. + 127 = N/A (default) +|125-135 | 11 |Pressure at sea level |pressure|u|90-1100 hPa: + P = (value/10)+900 for 0-2000 +|136-145 | 10 |Pressure Change |pchange |u|-50-+50hPa: + d = (value/10)-50 for 0-100, + averaged over last 3 hours. + 1023 = N/A (default) +|146-149 | 4 |Pressure Tendency |ptend |u|WMO BUFR table 010063: + Averaged over last 3 hours, + 0-8, 15 = N/A. +|150-156 | 7 |True Wind Direction |twinddir|u|005-360: deg: + average over last 10 minutes, + dir = (value*5), value 1-72, + 0 = calm, + 127 = N/A (default). +|157-164 | 8 |True Wind Speed |twindspeed|u|0-127 m/s: + average over last 10 mins, + speed = value * 0.5, + 255 = N/A (default). +|165-171 | 7 |Relative Wind Direction|rwinddir |u|005-360 deg: + average over last 10 mins, + dir = (value*5) for 1-72, + 0 = calm, + 127 = N/A (default). +|172-179 | 8 |Relative Wind Speed |rwindspeed|u|0-127 m/s: + average over last 10 mins, + speed = val*0.5 for 0-254, + 255 = N/A (default). +|180-187 | 8 |Maximum Gust Speed |mgustspeed|u|0-127 m/s: + speed = val*0.5 for 0-254, + 255 = N/A (default), +|188-194 | 7 |Maximum Gust Direction |mgustdir |u|05-360 deg: + dir = (value*5) for 1-72, + 0 = calm, + 127 = N/A (default). +|195-204 | 10 |Air Temperature |airtemp |u|Dry bulb temp: units 0.1C, + 223-323K (c.-50C - +50C). + T = (val/10)+223 for 0-1000, + 1023 = N/A (default). +|205-211 | 7 |Relative Humidity |humidity |u|0-100%: units of 1%, + 127 = N/A (default). +|212-220 | 9 |Sea Surface Temperature|surftemp |u|268-318K (c.-5C - +45C): + T = (val/10)+268 for 0-500, + 511 = N/A (default). +|221-226 | 6 |Horiz. Visibility |visibility|u|0-50000m, + Vis = (val**2)*13.073 for 0-62, + 63 = N/A (default). +|227-235 | 9 |Present Weather |weather |u|BUFR table 020003: + Codes 0-510, + 511 = N/A (default). +|236-240 | 5 |Past Weather 1 |pweather1 |u|BUFR table 020004: + Codes 0-30, + 31 = N/A (default). +|241-245 | 5 |Past Weather 2 |pweather2 |u|BUFR table 020004: + Codes 0-30, + 31 = N/A (default). +|246-249 | 4 |Total Cloud Cover |totalcloud|u|0-100%: + Cover = val * 10% for 0-10, + 15 = N/A (default.) +|250-253 | 4 |Cloud amount (low) |lowclouda |u|0-14: BUFR table 020011: + 15 = N/A (default). +|254-259 | 6 |Cloud type (low) |lowcloudt |u|0-62: BUFR table 020012: + 63 = N/A (default). +|260-265 | 6 |Cloud type (middle) |midcloudt |u|0-62: BUFR table 020012: + 63 = N/A (default). +|266-271 | 6 |Cloud type (high) |highcloudt|u|0-62: BUFR table 020012: + 63 = N/A (default). +|272-278 | 7 |Height of cloud base |cloudbase |u|0-2500m: + h = (value**2)*.0.16 for 0-125, + 126 = more than 2500m, + 127 = N/A (default). +|279-283 | 5 |Period of Wind Waves |wwperiod |u|0-30s: + 31 = N/A (default). +|284-289 | 6 |Height of Wind Waves |wwheight |u|Height in meters: 0-30, + h = (value * 0.5) for 0-60, + 63 = N/A (default). +|290-295 | 6 |First Swell Direction |swelldir1 |u|10-360 deg, + dir = (value*10) for 1-36, + 0 = calm, + 63 = N/A (default). +|296-300 | 5 |First Swell Period |swperiod1 |u|Period in seconds: 0-30, + 31 = N/A (default). +|301-306 | 6 |First Swell Height |swheight1 |u|Height in meters: 0-30, + h = (value * 0.5) for 0-60, + 63 = N/A (default). +|307-312 | 6 |Second Swell Direction |swelldir2 |u|10-360 deg: + dir = (value*10) for 1-36, + 0 = calm, + 63 = N/A (default). +|313-317 | 5 |Second Swell Period |swperiod2 |u|Period in seconds: 0-30, + 31 = N/A (default). +|318-323 | 6 |Second Swell Height |swheight2 |u|Height in meters: 0-30, + h = (value * 0.5) for 0-60, + 63 = N/A (default). +|324-330 | 7 |Ice deposit (thickness)|icedeposit|u|Thickness: 0-126cm, + 127 = N/A (default). +|331-333 | 3 |Rate of Ice Accretion |icerate |u|0-6: BUFR table 020032: + 7 = N/A (default). +|334-336 | 3 |Cause of Ice Accretion |icecause |u|0-6: BUFR table 020033: + 7 = N/A (default). +|337-341 | 5 |Sea Ice Concentration |seaice |u|0-30: BUFR table 020034: + 31 = N/A (default). +|342-345 | 4 |Amount and Type of Ice |icetype |u|0-14: BUFR table 020035: + 15 = N/A (default). +|346-350 | 5 |Ice Situation |icestate |u|0-30: BUFR table 020036: + 31 = N/A (default). +|351-355 | 5 |Ice Development |icedevel |u|0-30: BUFR table 020037: + 31 = N/A (default). +|356-359 | 4 |Bearing of Ice Edge |icebearing|u|Beasring: 45-360 deg, + dir = (value*45) for 1-8, + 15 = N/A (default). |============================================================================== The "minute" entry actually only identifies the end of a 10-minute interval. @@ -1993,35 +2037,36 @@ Swell directions are arrival directions. The content of this message is a time and a list of waypoints describing a course. It has an addressed equivalent that is a message 6 subtype. -A message 6 subtype. DAC = 001 FID = 27. Variable length: 172-997 bits. +A message 8 subtype. DAC = 001 FID = 27. Variable length: 172-997 bits. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 27 -|56-65 | 10 |Message Linkage ID|linkage |Unsigned integer -|66-68 | 3 |Sender Class |sender |0 = ship (default), 1 = authority -| | | | |27 = reserved for future use -|69-73 | 5 |Route Type |rtype |See below -|74-77 | 4 |Start month |month |1-12, 0=N/A (default) -|78-82 | 5 |Start day |day |1-31, 0=N/A (default) -|83-87 | 5 |Start hour |hour |0-23, 24=N/A (default) -|88-93 | 6 |Start minute |minute |0-59, 60=N/A (default) -|94-111 | 18 |Duration |duration |Minutes from start time -| | | | |0 = cancel route -| | | | |262,143 = not available = default -|112-116 | 5 | |waycount |Waypoint count (1-16) -| | | | |Values 17-31 are not used -|117-144 | 28 |Longitude |lon |Signed: unit minutes * 0.001 -| | | | |181000 = N/A (default) -| | | | |E positive, W negative -|145-171 | 27 |Latitude |lat |Signed: unit minutes * 0.001 -| | | | |91000 = N/A (default) -| | | | |N positive, S negative +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |u|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 27 +|56-65 | 10 |Message Linkage ID|linkage |u|Unsigned integer +|66-68 | 3 |Sender Class |sender |u|0 = ship (default), 1 = authority, + 27 = reserved for future use. +|69-73 | 5 |Route Type |rtype |u|See below +|74-77 | 4 |Start month |month |u|1-12, 0=N/A (default) +|78-82 | 5 |Start day |day |u|1-31, 0=N/A (default) +|83-87 | 5 |Start hour |hour |u|0-23, 24=N/A (default) +|88-93 | 6 |Start minute |minute |u|0-59, 60=N/A (default) +|94-111 | 18 |Duration |duration |u|Minutes from start time, + 0 = cancel route, + 262,143 = not available (default). +|112-116 | 5 | |waycount |u|Waypoint count (1-16,) + Values 17-31 are not used. +|117-144 | 28 |Longitude |lon |i|Unit = minutes * 0.001, + 181000 = N/A (default), + E positive, W negative. +|145-171 | 27 |Latitude |lat |i|Unit = minutes * 0.001, + 91000 = N/A (default), + N positive, S negative. |============================================================================== The final pair of fields in the table above is a waypoint. The message may @@ -2039,14 +2084,15 @@ via the Message Linkage ID field. [frame="topbot",options="header"] |============================================================================= -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 8 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 29 -|56-65 | 10 |Message Linkage ID |linkage |Unsigned integer -|66-? | 6-966 |Description |description |String +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 29 +|56-65 | 10 |Message Linkage ID|linkage |u|Unsigned integer +|66-? | 6-966 |Description |description|t|String |============================================================================== There is an equivalent subtype of message 6 that is an addressed description. @@ -2060,79 +2106,80 @@ Replaces a deprecated trial message from <<IMO236>>. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 8 -|6-7 | 2 |Repeat Indicator |repeat |As in CNB -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 24 -|56-65 | 10 |Message Linkage ID |linkage |Unsigned integer -|66-78 | 13 |Air Draught |airdraught |Unsigned int, in 0.1m -| | | | |1-81.9 m. -| | | | |0 = N/A (default) -| | | | |81.91 = >= 81.91 m -|79-108 | 30 |Last Port Of Call |lastport |5 6-bit chars, UN locode -|109-138 | 30 |Next Port Of Call |nextport |5 6-bit chars, UN locode -|139-168 | 30 |Second Port Of Call |secondport |5 6-bit chars, UN locode -|169-170 | 2 |AIS Class A |ais_state |SOLAS status -|171-172 | 2 |Automatic Tracking Aid |ata_state |SOLAS status -|173-174 | 2 |BNWAS |bnwas_state |SOLAS status -|175-176 | 2 |ECDIS Back-up |ecdisb_state |SOLAS status -|177-178 | 2 |Paper Nautical Chart |chart_state |SOLAS status -|179-180 | 2 |Echo sounder |sounder_state |SOLAS status -|181-182 | 2 |Electronic plotting aid|epaid_state |SOLAS status -|183-184 | 2 |Emergency steering gear|steer_state |SOLAS status -|185-186 | 2 |GNSS |gnss_state |SOLAS status -|187-188 | 2 |Gyro compass |gyro_state |SOLAS status -|189-190 | 2 |LRIT |lrit_state |SOLAS status -|191-192 | 2 |Magnetic compass |magcomp_state |SOLAS status -|193-194 | 2 |NAVTEX |navtex_state |SOLAS status -|195-196 | 2 |Radar (ARPA) |arpa_state |SOLAS status -|197-198 | 2 |Radar (S-band) |sband_state |SOLAS status -|199-200 | 2 |Radar (X-band) |xband_state |SOLAS status -|201-202 | 2 |Radio HF |hfradio_state |SOLAS status -|203-204 | 2 |Radio INMARSAT |inmarsat_state|SOLAS status -|205-206 | 2 |Radio MF |mfradio_state |SOLAS status -|207-208 | 2 |Radio VHF |vhfradio_state|SOLAS status -|209-210 | 2 |Speed Log over ground |grndlog_state |SOLAS status -|211-212 | 2 |Speed Log through water|waterlog_state|SOLAS status -|213-214 | 2 |THD |thd_state |SOLAS status -|215-216 | 2 |Track control system |tcs_state |SOLAS status -|217-218 | 2 |VDR/S-VDR |vdr_state |SOLAS status -|219-220 | 2 |Reserved | |Not used -|221-224 | 4 |Ice Class |iceclass |See below -|225-242 | 18 |Shaft Horsepower |horsepower |Total ship HP, 1hp units -| | | | |262,142 = >= 262,142hp -| | | | |262,143 = N/A (default) -|243-254 | 12 |VHF Working Channel |vhfchan |Channel number -| | | | |0 = N/A (default) -|255-296 | 42 |Lloyd's Ship Type |lshiptype |7 six-bit characters -|297-314 | 18 |Gross Tonnage |tonnage |0-262,141 -| | | | |262,142 = >= 262,142hp -| | | | |262,143 = N/A (default) -|315-316 | 2 |Laden or Ballast |lading |0 = N/A (default) -| | | | |1 = Laden -| | | | |2 = Ballast -| | | | |3 = Not in use -|317-318 | 2 |Heavy Fuel Oil Bunkered|heavyoil |0 = N/A (default) -| | | | |1 = No -| | | | |2 = Yes -| | | | |3 = Not in use -|319-320 | 2 |Light Fuel Oil Bunkered|lightoil |0 = N/A (default) -| | | | |1 = No -| | | | |2 = Yes -| | | | |3 = Not in use -|321-322 | 2 |Diesel Oil Bunkered |dieseloil |0 = N/A (default) -| | | | |1 = No -| | | | |2 = Yes -| | | | |3 = Not in use -|323-336 | 14 |Total Bunker Oil |totaloil |0-16381 in tonnes -| | | | |16382 = >= 16382 tonnes -| | | | |16382 = N/A (default) -|337-349 | 13 |Number of persons |persons |0 = N/A (default) -| | | | |1-8190 -| | | | |8191 = >= 8191 -|350-359 | 10 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in CNB +|8-37 | 30 |Source MMSI |mmsi |u|9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 24 +|56-65 | 10 |Message Linkage ID |linkage |u|Unsigned integer +|66-78 | 13 |Air Draught |airdraught |u|Unsigned int, in 0.1m + 1-81.9 m. + 0 = N/A (default) + 81.91 = >= 81.91 m +|79-108 | 30 |Last Port Of Call |lastport |t|5 6-bit chars, UN locode +|109-138 | 30 |Next Port Of Call |nextport |t|5 6-bit chars, UN locode +|139-168 | 30 |Second Port Of Call |secondport |t|5 6-bit chars, UN locode +|169-170 | 2 |AIS Class A |ais_state |u|SOLAS status +|171-172 | 2 |Automatic Tracking Aid |ata_state |u|SOLAS status +|173-174 | 2 |BNWAS |bnwas_state |u|SOLAS status +|175-176 | 2 |ECDIS Back-up |ecdisb_state |u|SOLAS status +|177-178 | 2 |Paper Nautical Chart |chart_state |u|SOLAS status +|179-180 | 2 |Echo sounder |sounder_state |u|SOLAS status +|181-182 | 2 |Electronic plotting aid|epaid_state |u|SOLAS status +|183-184 | 2 |Emergency steering gear|steer_state |u|SOLAS status +|185-186 | 2 |GNSS |gnss_state |u|SOLAS status +|187-188 | 2 |Gyro compass |gyro_state |u|SOLAS status +|189-190 | 2 |LRIT |lrit_state |u|SOLAS status +|191-192 | 2 |Magnetic compass |magcomp_state |u|SOLAS status +|193-194 | 2 |NAVTEX |navtex_state |u|SOLAS status +|195-196 | 2 |Radar (ARPA) |arpa_state |u|SOLAS status +|197-198 | 2 |Radar (S-band) |sband_state |u|SOLAS status +|199-200 | 2 |Radar (X-band) |xband_state |u|SOLAS status +|201-202 | 2 |Radio HF |hfradio_state |u|SOLAS status +|203-204 | 2 |Radio INMARSAT |inmarsat_state|u|SOLAS status +|205-206 | 2 |Radio MF |mfradio_state |u|SOLAS status +|207-208 | 2 |Radio VHF |vhfradio_state|u|SOLAS status +|209-210 | 2 |Speed Log over ground |grndlog_state |u|SOLAS status +|211-212 | 2 |Speed Log through water|waterlog_state|u|SOLAS status +|213-214 | 2 |THD |thd_state |u|SOLAS status +|215-216 | 2 |Track control system |tcs_state |u|SOLAS status +|217-218 | 2 |VDR/S-VDR |vdr_state |u|SOLAS status +|219-220 | 2 |Reserved | |x|Not used + |221-224 | 4 |Ice Class |iceclass |u|See below +|225-242 | 18 |Shaft Horsepower |horsepower |u|Total ship HP: 1hp units, + 262,142 = >= 262,142hp, + 262,143 = N/A (default). +|243-254 | 12 |VHF Working Channel |vhfchan |u|Channel number, + 0 = N/A (default). +|255-296 | 42 |Lloyd's Ship Type |lshiptype |t|7 six-bit characters +|297-314 | 18 |Gross Tonnage |tonnage |u|0-262,141, + 262,142 = >= 262,142hp, + 262,143 = N/A (default). +|315-316 | 2 |Laden or Ballast |lading |u|0 = N/A (default), + 1 = Laden, + 2 = Ballast, + 3 = Not in use. +|317-318 | 2 |Heavy Fuel Oil Bunkered|heavyoil |u|0 = N/A (default), + 1 = No, + 2 = Yes, + 3 = Not in use. +|319-320 | 2 |Light Fuel Oil Bunkered|lightoil |u|0 = N/A (default), + 1 = No, + 2 = Yes, + 3 = Not in use. +|321-322 | 2 |Diesel Oil Bunkered |dieseloil |u|0 = N/A (default), + 1 = No, + 2 = Yes, + 3 = Not in use. +|323-336 | 14 |Total Bunker Oil |totaloil |u|0-16381 in tonnes, + 16382 = >= 16382 tonnes, + 16382 = N/A (default). +|337-349 | 13 |Number of persons |persons |u|0 = N/A (default), + 1-8190, + 8191 = >= 8191. +|350-359 | 10 |Spare | |x|Not used |============================================================================== The special value of 81.91 for air draught is probably a drafting @@ -2207,99 +2254,103 @@ decimeters), and (c) end padding changes from 6 to 10 bits. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 6 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-55 | 16 |DAC/FID | |DAC = 001 FID = 11 -|56-80 | 25 |Longitude |lon |Signed: unit minutes * 0.001 -| | | | |East positive, West negative -| | | | |181000 = N/A (default) -|81-104 | 24 |Latitude |lat |Signed: unit minutes * 0.001 -| | | | |North positive, South negative -| | | | |91000 = N/A (default) -|105-105 | 1 |Fix quality |accuracy |As in Common Navigation Block -|106-110 | 5 |Day |day |1-31, 0=N/A (default) -|111-115 | 5 |Hour |hour |0-23, 24=N/A (default) -|116-121 | 6 |Minute |minute |0-59, 60=N/A (default) -|122-128 | 7 |Average Wind Speed |wspeed |10-min avg wind speed, knots -| | | | |126 = wind >= 126 knots -| | | | |17 = N/A (default) -|129-135 | 7 |Gust Speed |wgust |10-min max wind speed, knots -| | | | |126 = wind >= 126 knots -| | | | |17 = N/A (default) -|136-144 | 9 |Wind Direction |wdir |0-359, degrees fom true north -| | | | |360 = N/A (default) -|145-153 | 9 |Wind Gust Direction|wgustdir |0-359, degrees fom true north -| | | | |360 = N/A (default) -|154-164 | 11 |Air Temperature |temperature |Dry bulb temperature, 0.1 deg C -| | | | |-60.0 to +60.0, -| | | | |-1024 = N/A (default) -|165-171 | 7 |Relative Humidity |humidity |0-100%, units of 1% -| | | | |101 = N/A (default) -|172-181 | 10 |Dew Point |dewpoint |-20.0 to +50.0, 0.1 deg C -| | | | |501 = N/A (default) -|182-190 | 9 |Air Pressure |pressure |800-1200hPa, 1hPa -| | | | |0 = pressure <= 799hPa -| | | | |402 = pressure >= 1201 hPa -| | | | |403 = N/A (default) -|191-192 | 2 |Pressure Tendency |pressuretend|0 = steady -| | | | |1 = decreasing -| | | | |2 = increasing -| | | | |3 - N/A (default) -|193-200 | 8 |Horiz. Visibility |visibility |0.1 nautical miles -|201-212 | 12 |Water Level |waterlevel |-10.0 to +30.0 in 0.01m -| | | | |Subtract 10.0m after scaling -| | | | |40001 = N/A (default) -|213-214 | 2 |Water Level Trend |leveltrend |0 = steady -| | | | |1 = decreasing -| | | | |2 = increasing -| | | | |3 - N/A (default) -|215-222 | 8 |Surface Current Speed |cspeed |0.0-25.0, units 0.1 knot -| | | | |251 = speed >= 25.1 knots -| | | | |255 N/A (default) -|223-231 | 9 |Surface Current Direction |cdir |0-359, deg. fom true north -| | | | |360 = N/A (default) -|232-239 | 8 |Current Speed #2 |cspeed2 |0.0-25.0 knots, units 0.1 knot -| | | | |251 = speed >= 25.1 knots -| | | | |255 N/A (default) -|240-248 | 9 |Current Direction #2 |cdir2 |0-359, degrees fom true north -| | | | |360 = N/A (default) -|249-253 | 5 |Measurement Depth #2 |cdepth2 |0-30m down, units 0.1m -| | | | |31 = N/A (default) -|254-261 | 8 |Current Speed #3 |cspeed3 |0.0-25.0 knots, units 0.1 knot -| | | | |251 = speed >= 25.1 knots -| | | | |255 N/A (default) -|262-270 | 9 |Current Direction #3 |cdir3 |0-359, degrees fom true north -| | | | |360 = N/A (default) -|271-275 | 5 |Measurement Depth #3 |cdepth3 |0-30m down, units 0.1m -| | | | |31 = N/A (default) -|276-283 | 8 |Wave height |waveheight|0-25m, units 0.1m -| | | | |251 = height >= 25.1m -| | | | |255 N/A (default) -|284-289 | 6 |Wave period |waveperiod|Seconds, 0-60, units 1s -|290-298 | 9 |Wave direction |wavedir |0-359, degrees fom true north -| | | | |360 = N/A (default) -|299-306 | 8 |Swell height |swellheight|0-25m, units 0.1m -| | | | |251 = height >= 25.1m -| | | | |255 N/A (default) -|307-312 | 6 |Swell period |swellperiod|Seconds, 0-60, units 1s -| | | | |360 = N/A (default) -|313-321 | 9 |Swell direction |swelldir |0-359, degrees fom true north -| | | | |360 = N/A (default) -|322-325 | 4 |Sea state |seastate |Beaufort scale, 0-12 -| | | | |>= 13 = N/A (default) -|326-335 | 10 |Water Temperature |watertemp |-10.0 to 50.0 C, 0.1 deg -| | | | |601 = N/A (default) -| | | | |Otherwise -10m after scaling -|336-338 | 3 |Precipitation |precipitation |preciptype -|339-347 | 9 |Salinity |salinity |0.0-50.0%, units of 0.1% -| | | | |501 = salinity >= 50.1% -| | | | |510 = N/A (default) -| | | | |511 - sensor not available -|348-349 | 2 |Ice |ice |Yes/No -|350-359 | 10 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 8 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-49 | 10 |DAC |dac |u|DAC = 001 +|50-55 | 6 |FID |fid |u|FID = 31 +|56-80 | 25 |Longitude |lon |i|Unit = minutes * 0.001, + E positive, We negative, + 181000 = N/A (default). +|81-104 | 24 |Latitude |lat |i|Unit = minutes * 0.001, + N positive, S negative, + 91000 = N/A (default). +|105-105 | 1 |Fix quality |accuracy |u|As in Common Navigation Block +|106-110 | 5 |Day |day |u|1-31, 0=N/A (default) +|111-115 | 5 |Hour |hour |u|0-23, 24=N/A (default) +|116-121 | 6 |Minute |minute |u|0-59, 60=N/A (default) +|122-128 | 7 |Average Wind Speed |wspeed |u|10-min avg wind speed: knots, + 126 = wind >= 126 knots, + 17 = N/A (default). +|129-135 | 7 |Gust Speed |wgust |u|10-min max wind speed: knots, + 126 = wind >= 126 knots, + 17 = N/A (default). +|136-144 | 9 |Wind Direction |wdir |u|0-359, deg. from true north, + 360 = N/A (default). +|145-153 | 9 |Wind Gust Direction|wgustdir |u|0-359, deg. from true north, + 360 = N/A (default). +|154-164 | 11 |Air Temperature |temperature |u|Dry bulb temp: units 0.1C, + -60.0 to +60.0, + -1024 = N/A (default). +|165-171 | 7 |Relative Humidity |humidity |u|0-100%: units of 1%, + 101 = N/A (default). +|172-181 | 10 |Dew Point |dewpoint |u|-20.0 to +50.0: units 0.1C, + 501 = N/A (default). +|182-190 | 9 |Air Pressure |pressure |u|800-1200hPa, 1hPa, + 0 = pressure <= 799hPa, + 402 = pressure >= 1201 hPa, + 403 = N/A (default). +|191-192 | 2 |Pressure Tendency |pressuretend|u|0 = steady, + 1 = decreasing, + 2 = increasing, + 3 - N/A (default). +|193-193 | 7 |Max. visibility |visgreater |b|Visibility greater than. +|194-200 | 8 |Horiz. Visibility |visibility |u|Units are 0.1 nautical miles, + 127 = N/A (default). +|201-212 | 12 |Water Level |waterlevel |u|-10.0 to +30.0 in 0.01m, + -10.0m after scaling, + 40001 = N/A (default). +|213-214 | 2 |Water Level Trend |leveltrend |u|0 = steady, + 1 = decreasing, + 2 = increasing, + 3 - N/A (default). +|215-222 | 8 |Surface Current Speed |cspeed |u|0.0-25.0: units 0.1 knot, + 251 = speed >= 25.1 knots, + 255 N/A (default). +|223-231 | 9 |Surface Current Direction |cdir |u|0-359: deg. fom true north, + 360 = N/A (default). +|232-239 | 8 |Current Speed #2 |cspeed2 |u|0.0-25.0 knots: units 0.1 knot, + 251 = speed >= 25.1 knots, + 255 N/A (default). +|240-248 | 9 |Current Direction #2 |cdir2 |u|0-359: deg. from true north, + 360 = N/A (default). +|249-253 | 5 |Measurement Depth #2 |cdepth2 |u|0-30m down" units 0.1m, + 31 = N/A (default). +|254-261 | 8 |Current Speed #3 |cspeed3 |u|0.0-25.0 knots: units 0.1 knot, + 251 = speed >= 25.1 knots, + 255 N/A (default). +|262-270 | 9 |Current Direction #3 |cdir3 |u|0-359: deg. from true north, + 360 = N/A (default). +|271-275 | 5 |Measurement Depth #3 |cdepth3 |u|0-30m down: units 0.1m, + 31 = N/A (default). +|276-283 | 8 |Wave height |waveheight|u|Height 0-25m: units 0.1m, + 251 = height >= 25.1m, + 255 N/A (default). +|284-289 | 6 |Wave period |waveperiod|u|Seconds, 0-60, units 1s, + 63 = N/A (default). +|290-298 | 9 |Wave direction |wavedir |u|0-359: deg. from true north, + 360 = N/A (default). +|299-306 | 8 |Swell height |swellheight|u|0-25m: units 0.1m + 251 = height >= 25.1m + 255 N/A (default) +|307-312 | 6 |Swell period |swellperiod|u|0-60, units 1s + 360 = N/A (default) +|313-321 | 9 |Swell direction |swelldir |u|0-359: deg. from true north, + 360 = N/A (default) +|322-325 | 4 |Sea state |seastate |u|Beaufort scale: 0-12 + >= 13 = N/A (default) +|326-335 | 10 |Water Temperature |watertemp |u|-10.0 to 50.0 C: units 0.1 deg, + 601 = N/A (default) + Otherwise -10m after scaling +|336-338 | 3 |Precipitation |precipitation |u|preciptype +|339-347 | 9 |Salinity |salinity |u|0.0-50.0%: units of 0.1% + 501 = salinity >= 50.1% + 510 = N/A (default) + 511 - sensor not available +|348-349 | 2 |Ice |ice |b|Yes/No +|350-359 | 10 |Spare | |x|Not used |============================================================================== Precipitation types and Beaufort scale are as for the <<IMO236>> version. @@ -2311,25 +2362,24 @@ bits is 168. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Encoding -|0-5 | 6 |Message Type |type |Unsigned integer: 9 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 |30 |MMSI |mmsi |Unsigned integer: 9 digits -|38-49 |12 |Altitude |alt |Unsigned integer: See below -|50-59 |10 |SOG |speed |Unsigned integer: See below -|60-60 | 1 |Position Accuracy |accuracy |See below -|61-88 |28 |Longitude |lon |Minutes/10000 (as in CNB) -|89-115 |27 |Latitude |lat |Minutes/10000 (as in CNB) -|116-127 |12 |Course Over Ground |course |Relative to true north to 0.1 degree -|128-133 | 6 |Time Stamp |second |Unsigned integer: UTC second. -|134-141 | 8 |Regional reserved |regional -| -|142-142 | 1 |DTE |dte |0=Data terminal ready, -| | | | |1=Data terminal not ready (default) -|143-145 | 3 |Spare | |Not used -|146-146 | 1 |Assigned |assigned |Assigned-mode flag -|147-147 | 1 |RAIM flag |raim |As for common navigation block -|148-167 |19 |Radio status |radio |See <<IALA>> for details. +|Field |Len |Description |Member |T|Encoding +|0-5 | 6 |Message Type |type |u|Constant: 9 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 |30 |MMSI |mmsi |u|Unsigned integer: 9 digits +|38-49 |12 |Altitude |alt |u|Unsigned integer: See below +|50-59 |10 |SOG |speed |u|Unsigned integer: See below +|60-60 | 1 |Position Accuracy |accuracy |u|See below +|61-88 |28 |Longitude |lon |i|Minutes/10000 (as in CNB) +|89-115 |27 |Latitude |lat |i|Minutes/10000 (as in CNB) +|116-127 |12 |Course Over Ground |course |u|In 0.1 degrees from true north. +|128-133 | 6 |Time Stamp |second |u|Unsigned integer: UTC second. +|134-141 | 8 |Regional reserved |regional |x|Reserved +|142-142 | 1 |DTE |dte |b|0=Data terminal ready, + 1=Data terminal not ready (default) +|143-145 | 3 |Spare | |x|Not used +|146-146 | 1 |Assigned |assigned |b|Assigned-mode flag +|147-147 | 1 |RAIM flag |raim |b|As for common navigation block +|148-167 |19 |Radio status |radio |u|See <<IALA>> for details. |============================================================================== Altitude is in meters. The special value 4095 indicates altitude is @@ -2351,13 +2401,13 @@ number of bits is 72. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Encoding -|0-5 | 6 |Message Type |type |Unsigned integer: 9 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 |30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-69 |30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70-71 | 2 |Spare | |Not used +|Field |Len |Description |Member |T|Encoding +|0-5 | 6 |Message Type |type |u|Constant: 10 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 |30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-69 |30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70-71 | 2 |Spare | |x|Not used |============================================================================== === Type 11: UTC/Date Response === @@ -2372,17 +2422,17 @@ six-bit text. This message is variable in length up to a maximum of [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 12 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Sequence Number |seqno |Unsigned integer 0-3 -|40-69 | 30 |Destination MMSI |dest_mmsi |Unsigned integer: 9 digits -|70 | 1 |Retransmit flag |retransmit |0 = no retransmission (default) -| | | | |1 = retransmitted -|71 | 1 |Spare | |Not used -|72 |936 |Text |text |1-156 chars of six-bit text. -| | | | |May be shorter than 936 bits. +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 12 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Sequence Number |seqno |u|Unsigned integer 0-3 +|40-69 | 30 |Destination MMSI |dest_mmsi |u|Unsigned integer: 9 digits +|70 | 1 |Retransmit flag |retransmit |u|0 = no retransmit (default), + 1 = retransmitted +|71 | 1 |Spare | |x|Not used +|72 |936 |Text |text |t|1-156 chars of six-bit text. + May be shorter than 936 bits. |============================================================================== Pragmatic note: On <<<AISHUB>>> the actual content of these messages is @@ -2410,13 +2460,13 @@ six-bit text. This message is variable in length up to a maximum of [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 14 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40 |968 |Text |text |1-161 chars of six-bit text. -| | | | |May be shorter than 968 bits. +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 14 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40 |968 |Text |text |t|1-161 chars of six-bit text. + May be shorter than 968 bits. |============================================================================== Note: 161 * 6 = 966. <<IALA>> specifies 968 because over-the-air @@ -2440,21 +2490,21 @@ a particular time division in the TDMA packet layer. [frame="topbot",options="header"] |============================================================================== |Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 15 +|0-5 | 6 |Message Type |type |Constant: 15 |6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block |8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used +|38-39 | 2 |Spare | |x|Not used |40-69 | 30 |Interrogated MMSI |mmsi1 |Unsigned integer: 9 digits |70-75 | 6 |First message type |type1_1 |Unsigned integer |76-87 | 12 |First slot offset |offset1_1 |Unsigned integer -|88-89 | 2 |Spare | |Not used +|88-89 | 2 |Spare | |x|Not used |90-95 | 6 |Second message type |type1_2 |Unsigned integer |96-107 | 12 |Second slot offset |offset1_2 |Unsigned integer -|108-109 | 2 |Spare | |Not used +|108-109 | 2 |Spare | |x|Not used |110-139 | 30 |Interrogated MMSI |mmsi2 |Unsigned integer: 9 digits |140-145 | 6 |First message type |type2_1 |Unsigned integer |146-157 | 12 |First slot offset |offset2_1 |Unsigned integer -|158-159 | 2 |Spare | |Not used +|158-159 | 2 |Spare | |x|Not used |============================================================================== There are four use cases for this message. A decoder must dispatch on @@ -2488,17 +2538,17 @@ Length may be 96 or 144 bits. [frame="topbot",options="header"] |============================================================================ -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 16 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-69 | 30 |Destination A MMSI |mmsi1 |Unsigned integer: 9 digits -|70-81 | 12 |Offset A |offset1 |See <<IALA>> -|82-91 | 10 |Increment A |increment1 |See <<IALA>> -|92-121 | 30 |Destination B MMSI |mmsi2 |Unsigned integer: 9 digits -|122-133 | 12 |Offset B |offset2 |See <<IALA>> -|134-143 | 10 |Increment B |increment2 |See <<IALA>> +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 16 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-69 | 30 |Destination A MMSI |mmsi1 |u|Unsigned integer: 9 digits +|70-81 | 12 |Offset A |offset1 |u|See <<IALA>> +|82-91 | 10 |Increment A |increment1 |u|See <<IALA>> +|92-121 | 30 |Destination B MMSI |mmsi2 |u|Unsigned integer: 9 digits +|122-133 | 12 |Offset B |offset2 |u|See <<IALA>> +|134-143 | 10 |Increment B |increment2 |u|See <<IALA>> |============================================================================= If the message is 96 bits long, it should be interpreted as an @@ -2525,15 +2575,15 @@ receivers capable of accepting such corrections. 80 to 816 bits depending on payload size. |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 16 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |Source MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-57 | 18 |Longitude |lon |Signed: minutes/10 -|58-74 | 17 |Latitude |lat |Signed: minutes/10 -|75-79 | 5 |Spare | |Not used - reserved -|80-815 |736 |Payload |data |DGNSS correction data +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 17 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 | 30 |Source MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-57 | 18 |Longitude |lon |u|Signed: minutes/10 +|58-74 | 17 |Latitude |lat |u|Signed: minutes/10 +|75-79 | 5 |Spare | |x|Not used - reserved +|80-815 |736 |Payload |data |d|DGNSS correction data |============================================================================== Nore that latitude and longitude are in units of a tenth of a minute; @@ -2559,36 +2609,35 @@ understand these fields." [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 18 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 |30 |MMSI |mmsi |Unsigned integer: 9 digits -|38-45 | 8 |Regional Reserved |reserved -| -|46-55 |10 |Speed Over Ground |speed |As in common navigation block -|56-56 | 1 |Position Accuracy |accuracy |See below -|57-84 |28 |Longitude |lon |Minutes/10000 (as in CNB) -|85-111 |27 |Latitude |lat |Minutes/10000 (as in CNB) -|112-123 |12 |Course Over Ground |course |Relative to true north to 0.1 degree -|124-132 | 9 |True Heading |heading |0 to 359 degrees, 511 = N/A -|133-138 | 6 |Time Stamp |second |Second of UTC timestamp. -|139-140 | 2 |Regional reserved |regional -| -|141-141 | 1 |CS Unit |cs |0=Class B SOTDMA unit -| | | | |1=Class B CS (Carrier Sense) unit -|142-142 | 1 |Display flag |display |0=No visual display, 1=Has display -| | | | |(Probably not reliable.) -|143-143 | 1 |DSC Flag |dsc |If 1, unit is attached to a VHF -| | | | |voice radio with DSC capability. -|144-144 | 1 |Band flag |band |Base stations can command units -| | | | |to switch frequency. If this flag -| | | | |is 1, the unit can use any part -| | | | |of the marine channel. -|145-145 | 1 |Message 22 flag |msg22 |If 1, unit can accept a channel -| | | | |assignment via Message Type 22. -|146-146 | 1 |Assigned |assigned |Assigned-mode flag -|147-147 | 1 |RAIM flag |raim |As for common navigation block -|148-167 |20 |Radio status |radio |See <<IALA>> for details. +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 18 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 |30 |MMSI |mmsi |u|Unsigned integer: 9 digits +|38-45 | 8 |Regional Reserved |reserved |x|Not used +|46-55 |10 |Speed Over Ground |speed |u|As in common navigation block +|56-56 | 1 |Position Accuracy |accuracy |u|See below +|57-84 |28 |Longitude |lon |i|Minutes/10000 (as in CNB) +|85-111 |27 |Latitude |lat |i|Minutes/10000 (as in CNB) +|112-123 |12 |Course Over Ground |course |u|0.1 degrees from true north +|124-132 | 9 |True Heading |heading |u|0 to 359 degrees, 511 = N/A +|133-138 | 6 |Time Stamp |second |u|Second of UTC timestamp. +|139-140 | 2 |Regional reserved |regional |u| +|141-141 | 1 |CS Unit |cs |b|0=Class B SOTDMA unit + 1=Class B CS (Carrier Sense) unit +|142-142 | 1 |Display flag |display |u|0=No visual display, + 1=Has display, + (Probably not reliable). +|143-143 | 1 |DSC Flag |dsc |u|If 1, unit is attached to a VHF + voice radio with DSC capability. +|144-144 | 1 |Band flag |band |u|Base stations can command units + to switch frequency. If this flag + is 1, the unit can use any part + of the marine channel. +|145-145 | 1 |Message 22 flag |msg22 |u|If 1, unit can accept a channel + assignment via Message Type 22. +|146-146 | 1 |Assigned |assigned |b|Assigned-mode flag +|147-147 | 1 |RAIM flag |raim |b|As for common navigation block +|148-167 |20 |Radio status |radio |u|See <<IALA>> for details. |============================================================================== The radio status is 20 bits rather than 19 because an extra first bit @@ -2608,34 +2657,33 @@ gathered automatically from sensors. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 19 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 | 30 |MMSI |mmsi |Unsigned integer: 9 digits -|38-45 | 8 |Regional Reserved |reserved -| -|46-55 | 10 |Speed Over Ground |speed |As in Common Navigation Block -|56-56 | 1 |Position Accuracy |accuracy |See below -|57-84 | 28 |Longitude |lon |Minutes/10000 (as in CNB) -|85-111 | 27 |Latitude |lat |Minutes/10000 (as in CNB) -|112-123 | 12 |Course Over Ground |course |Relative to true north, -| | | | |units of 0.1 degrees -|124-132 | 9 |True Heading |heading |0 to 359 degrees, -| | | | |511 = N/A -|133-138 | 6 |Time Stamp |second |Second of UTC timestamp. -|139-142 | 4 |Regional reserved |regional -| -|143-262 |120 |Name |shipname |20 6-bit characters -|263-270 | 8 |Type of ship and cargo |shiptype |As in Message 5 -|271-279 | 9 |Dimension to Bow |to_bow |Unsigned integer: Meters -|280-288 | 9 |Dimension to Stern |to_stern |Unsigned integer: Meters -|289-294 | 6 |Dimension to Port |to_port |Unsigned integer: Meters -|295-300 | 6 |Dimension to Starboard |to_starboard |Unsigned integer: Meters -|301-304 | 4 |Position Fix Type |epfd |As in Type 4 EPFD codes -|305-305 | 1 |RAIM flag |raim |As for Common Navigation Block -|306-306 | 1 |DTE |dte |0=Data terminal ready, -|307-307 | 1 |Assigned mode flag |assigned |See <<IALA>> for details -|308-311 | 4 |Spare | |Unused, should be zero +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 19 +|6-7 | 2 |Repeat Indicator |repeat |u|As in CNN +|8-37 | 30 |MMSI |mmsi |u|9 digits +|38-45 | 8 |Regional Reserved |reserved |u| +|46-55 | 10 |Speed Over Ground |speed |u|As in CNB. +|56-56 | 1 |Position Accuracy |accuracy |u|See below +|57-84 | 28 |Longitude |lon |i|Minutes/10000 (as in CNB) +|85-111 | 27 |Latitude |lat |i|Minutes/10000 (as in CNB) +|112-123 | 12 |Course Over Ground |course |u|Relative to true north, + units of 0.1 degrees +|124-132 | 9 |True Heading |heading |u|0 to 359 degrees, + 511 = N/A +|133-138 | 6 |Time Stamp |second |u|Second of UTC timestamp. +|139-142 | 4 |Regional reserved |regional |u| +|143-262 |120 |Name |shipname |s|20 6-bit characters +|263-270 | 8 |Type of ship and cargo |shiptype |u|As in Message 5 +|271-279 | 9 |Dimension to Bow |to_bow |u|Unsigned integer: Meters +|280-288 | 9 |Dimension to Stern |to_stern |u|Unsigned integer: Meters +|289-294 | 6 |Dimension to Port |to_port |u|Unsigned integer: Meters +|295-300 | 6 |Dimension to Starboard |to_starboard |u|Unsigned integer: Meters +|301-304 | 4 |Position Fix Type |epfd |u|As in Type 4 EPFD codes +|305-305 | 1 |RAIM flag |raim |b|As in CNB. +|306-306 | 1 |DTE |dte |u|0=Data terminal ready, + 1=Not ready (default). +|307-307 | 1 |Assigned mode flag |assigned |u|See <<IALA>> for details +|308-311 | 4 |Spare | |x|Unused, should be zero |============================================================================== === Type 20 Data Link Management Message === @@ -2648,27 +2696,27 @@ the number of slot reservations (1 to 4) in the message. [frame="topbot",options="header"] |=============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 20 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 |30 |MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-51 |12 |Offset number 1 |offset1 |Reserved offset number -|52-55 | 4 |Reserved slots |number1 |Consecutive slots -|56-58 | 3 |Time-out |timeout1 |Allocation timeout in minutes -|59-69 |11 |Increment |increment1 |Repeat increment -|70-81 |12 |Offset number 2 |offset2 |Reserved offset number -|82-85 | 4 |Reserved slots |number2 |Consecutive slots -|86-88 | 3 |Time-out |timeout2 |Allocation timeout in minutes -|89-99 |11 |Increment |increment2 |Repeat increment -|100-111 |12 |Offset number 3 |offset3 |Reserved offset number -|112-115 | 4 |Reserved slots |number3 |Consecutive slots -|116-118 | 3 |Time-out |timeout3 |Allocation timeout in minutes -|119-129 |11 |Increment |increment3 |Repeat increment -|130-141 |12 |Offset number 4 |offset4 |Reserved offset number -|142-145 | 4 |Reserved slots |number4 |Consecutive slots -|146-148 | 3 |Time-out |timeout4 |Allocation timeout in minutes -|149-159 |11 |Increment |increment4 |Repeat increment +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 20 +|6-7 | 2 |Repeat Indicator |repeat |u|As in CNB +|8-37 |30 |MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-51 |12 |Offset number 1 |offset1 |u|Reserved offset number +|52-55 | 4 |Reserved slots |number1 |u|Consecutive slots +|56-58 | 3 |Time-out |timeout1 |u|Allocation timeout in minutes +|59-69 |11 |Increment |increment1 |u|Repeat increment +|70-81 |12 |Offset number 2 |offset2 |u|Reserved offset number +|82-85 | 4 |Reserved slots |number2 |u|Consecutive slots +|86-88 | 3 |Time-out |timeout2 |u|Allocation timeout in minutes +|89-99 |11 |Increment |increment2 |u|Repeat increment +|100-111 |12 |Offset number 3 |offset3 |u|Reserved offset number +|112-115 | 4 |Reserved slots |number3 |u|Consecutive slots +|116-118 | 3 |Time-out |timeout3 |u|Allocation timeout in minutes +|119-129 |11 |Increment |increment3 |u|Repeat increment +|130-141 |12 |Offset number 4 |offset4 |u|Reserved offset number +|142-145 | 4 |Reserved slots |number4 |u|Consecutive slots +|146-148 | 3 |Time-out |timeout4 |u|Allocation timeout in minutes +|149-159 |11 |Increment |increment4 |u|Repeat increment |=============================================================================== See <<IALA>> for details on the meaning of these fields. @@ -2684,28 +2732,28 @@ and 360 bits. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 21 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 |30 |MMSI |mmsi |Unsigned integer: 9 digits -|38-42 | 5 |Aid type |aid_type |See Below -|43-162 1|120 |Name |name |Name of the aid to navigation -|163-163 | 1 |Position Accuracy |accuracy |As in Common Navigation Block -|164-191 |28 |Longitude |lon |Minutes/10000 (as in CNB) -|192-218 |27 |Latitude |lat |Minutes/10000 (as in CNB) -|219-227 | 9 |Dimension to Bow |to_bow |Unsigned integer: Meters -|228-236 | 9 |Dimension to Stern |to_stern |Unsigned integer: Meters -|237-242 | 6 |Dimension to Port |to_port |Unsigned integer: Meters -|243-248 | 6 |Dimension to Starboard |to_starboard |Unsigned integer: Meters -|249-252 | 4 |Type of EPFD |epfd |As in Message Type 4 -|253-258 | 6 |UTC Second |second |As in Message Type 5 -|259-259 | 1 |Off-Position Indicator |off_position |See Below -|260-267 | 8 |Regional reserved |regional | -|268-268 | 1 |RAIM flag |raim |As in Common Navigation Block -|269-269 | 1 |Virtual-aid flag |virtual_aid |See Below -|270-270 | 1 |Assigned-mode flag |assigned |See <<IALA>> for details -|271-271 | 1 |Spare | |Not used -|272-360 |88 |Name Extension | |See Below +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 21 +|6-7 | 2 |Repeat Indicator |repeat |u|As in CNB +|8-37 |30 |MMSI |mmsi |u|9 digits +|38-42 | 5 |Aid type |aid_type |u|See Below +|43-162 1|120 |Name |name |t|Name in sixbit chars +|163-163 | 1 |Position Accuracy |accuracy |u|As in CNB +|164-191 |28 |Longitude |lon |i|Minutes/10000 (as in CNB) +|192-218 |27 |Latitude |lat |i|Minutes/10000 (as in CNB) +|219-227 | 9 |Dimension to Bow |to_bow |u|Unsigned integer: Meters +|228-236 | 9 |Dimension to Stern |to_stern |u|Unsigned integer: Meters +|237-242 | 6 |Dimension to Port |to_port |u|Unsigned integer: Meters +|243-248 | 6 |Dimension to Starboard |to_starboard|u|Unsigned integer: Meters +|249-252 | 4 |Type of EPFD |epfd |u|As in Message Type 4 +|253-258 | 6 |UTC Second |second |u|As in Message Type 5 +|259-259 | 1 |Off-Position Indicator |off_position|u|See Below +|260-267 | 8 |Regional reserved |regional |u| +|268-268 | 1 |RAIM flag |raim |b|As in CNB +|269-269 | 1 |Virtual-aid flag |virtual_aid |u|See Below +|270-270 | 1 |Assigned-mode flag |assigned |u|See <<IALA>> for details +|271-271 | 1 |Spare | |x|Not used +|272-360 |88 |Name Extension | |t|See Below |============================================================================== According to <<IALA>>, the aid type field has values 1-15 for fixed @@ -2787,26 +2835,26 @@ network. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 22 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 |30 |MMSI |mmsi |Unsigned integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-51 |12 |Channel A |channel_a |Channel number -|52-63 |12 |Channel B |channel_b |Channel number -|64-67 | 4 |Tx/Rx mode |txrx |Transmit/receive mode -|68-68 | 1 |Power |power |Low=0, high=1 -|69-86 |18 |NE Longitude |ne_lon |Signed: NE longitude to 0.1 minutes -|87-103 |17 |NE Latitude |ne_lat |Signed: NE latitude to 0.1 minutes -|104-121 |18 |SW Longitude |sw_lon |Signed: SW longitude to 0.1 minutes -|122-138 |17 |SW Latitude |sw_lat |Signed: SW latitude to 0.1 minutes -|69-98 |30 |MMSI1 |dest1 |Unsigned: MMSI of destination 1 -|104-133 |30 |MMSI2 |dest2 |Unsigned: MMSI of destination 2 -|139-139 | 1 |Addressed |addressed |0=Broadcast, 1=Addressed -|140-140 | 1 |Channel A Band |band_a |0=Default, 1=12.5kHz -|141-141 | 1 |Channel B Band |band_b |0=Default, 1=12.5kHz -|142-144 | 3 |Zone size |zonesize |Size of transitional zone -|145-167 |23 |Spare | |Reserved for future use +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Constant: 22 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 |30 |MMSI |mmsi |u|Unsigned integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-51 |12 |Channel A |channel_a |u|Channel number +|52-63 |12 |Channel B |channel_b |u|Channel number +|64-67 | 4 |Tx/Rx mode |txrx |u|Transmit/receive mode +|68-68 | 1 |Power |power |b|Low=0, high=1 +|69-86 |18 |NE Longitude |ne_lon |u|NE longitude to 0.1 minutes +|87-103 |17 |NE Latitude |ne_lat |i|NE latitude to 0.1 minutes +|104-121 |18 |SW Longitude |sw_lon |i|SW longitude to 0.1 minutes +|122-138 |17 |SW Latitude |sw_lat |i|SW latitude to 0.1 minutes +|69-98 |30 |MMSI1 |dest1 |u|MMSI of destination 1 +|104-133 |30 |MMSI2 |dest2 |u|MMSI of destination 2 +|139-139 | 1 |Addressed |addressed |b|0=Broadcast, 1=Addressed +|140-140 | 1 |Channel A Band |band_a |b|0=Default, 1=12.5kHz +|141-141 | 1 |Channel B Band |band_b |b|0=Default, 1=12.5kHz +|142-144 | 3 |Zone size |zonesize |u|Size of transitional zone +|145-167 |23 |Spare | |x|Reserved for future use |============================================================================== The values of the channel_a and channel_b fields are ITU frequency @@ -2849,22 +2897,22 @@ station network. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned Integer: 23 -|6-7 | 2 |Repeat Indicator |repeat |As in Common Navigation Block -|8-37 |30 |MMSI |mmsi |Unsigned Integer: 9 digits -|38-39 | 2 |Spare | |Not used -|40-57 |18 |NE Longitude |ne_lon |Same as broadcast type 22 -|58-74 |17 |NE Latitude |ne_lat |Same as broadcast type 22 -|75-92 |18 |SW Longitude |sw_lon |Same as broadcast type 22 -|93-109 |17 |SW Latitude |sw_lat |Same as broadcast type 22 -|110-113 | 4 |Station Type |station_type |Unsigned Integer, see below -|114-121 | 8 |Ship Type |ship_type |As for Message type 5 -|122-143 |22 |Spare | |Not used -|144-145 | 2 |Tx/Rx Mode |txrx |Transmit/receive mode; see below, -|146-149 | 4 |Report Interval |interval |Station report interval; see below -|150-153 | 4 |Quiet Time |quiet |0 = none, 1-15 quiet time in minutes -|154-159 | 6 |Spare | |Not used +|Field |Len |Description |Member |T|Units +|0-5 | 6 |Message Type |type |u|Unsigned Integer: 23 +|6-7 | 2 |Repeat Indicator |repeat |u|As in Common Navigation Block +|8-37 |30 |MMSI |mmsi |u|Unsigned Integer: 9 digits +|38-39 | 2 |Spare | |x|Not used +|40-57 |18 |NE Longitude |ne_lon |u|Same as broadcast type 22 +|58-74 |17 |NE Latitude |ne_lat |u|Same as broadcast type 22 +|75-92 |18 |SW Longitude |sw_lon |u|Same as broadcast type 22 +|93-109 |17 |SW Latitude |sw_lat |u|Same as broadcast type 22 +|110-113 | 4 |Station Type |station_type |u|Unsigned Integer, see below +|114-121 | 8 |Ship Type |ship_type |u|As for Message type 5 +|122-143 |22 |Spare | |x|Not used +|144-145 | 2 |Tx/Rx Mode |txrx |u|Transmit/receive mode; see below, +|146-149 | 4 |Report Interval |interval |u|Station report interval; see below +|150-153 | 4 |Quiet Time |quiet |u|0 = none, 1-15 quiet time in minutes +|154-159 | 6 |Spare | |x|Not used |============================================================================== The target set of mobile stations is specified by the station-type and @@ -2943,22 +2991,22 @@ is thanks to Kurt Schwehr. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description | Member | Units -|0-5 | 6 | Message Type | type | Unsigned integer: 19 -|6-7 | 2 | Repeat Indicator | repeat | As in CNB -|8-37 | 30 | MMSI | mmsi | Unsigned integer: 9 digits -|38-39 | 2 | Part Number | partno | Unsigned integer: 0-1 -|40-159 |120 | Vessel Name | shipname | (Part A) 20 six-bit chars -|160-167 | 8 | Spare | | (Part A) Not used -|40-47 | 8 | Ship Type | shiptype | (Part B) As in Message Type 5 -|48-89 | 42 | Vendor ID | vendorid | (Part B) 7 six-bit chars -|90-131 | 42 | Call Sign | callsign | (Part B) As in Message Type 5 -|132-140 | 9 | Dimension to Bow | to_bow | (Part B) Unsigned int: Meters -|141-149 | 9 | Dimension to Stern | to_stern | (Part B) Unsigned int: Meters -|150-155 | 6 | Dimension to Port | to_port | (Part B) Unsigned int: Meters -|156-161 | 6 | Dimension to Starboard| to_starboard | (Part B) Unsigned int: Meters -|132-161 | 30 | Mothership MMSI | mothership_mmsi| (Part B) See below -|162-167 | 6 | Spare | | (Part B) Not used +|Field |Len |Description | Member |T|Units +|0-5 | 6 | Message Type | type |u|Constant: 24 +|6-7 | 2 | Repeat Indicator | repeat |u|As in CNB +|8-37 | 30 | MMSI | mmsi |u|9 digits +|38-39 | 2 | Part Number | partno |u|Unsigned integer: 0-1 +|40-159 |120 | Vessel Name | shipname |t|(Part A) 20 sixbit chars +|160-167 | 8 | Spare | |x|(Part A) Not used +|40-47 | 8 | Ship Type | shiptype |u|(Part B) As in Message Type 5 +|48-89 | 42 | Vendor ID | vendorid |t|(Part B) 7 six-bit chars +|90-131 | 42 | Call Sign | callsign |t|(Part B) As in Message Type 5 +|132-140 | 9 | Dimension to Bow | to_bow |u|(Part B) Meters +|141-149 | 9 | Dimension to Stern | to_stern |u|(Part B) Meters +|150-155 | 6 | Dimension to Port | to_port |u|(Part B) Meters +|156-161 | 6 | Dimension to Starboard| to_starboard |u|(Part B) Meters +|132-161 | 30 | Mothership MMSI | mothership_mmsi|u|(Part B) See below +|162-167 | 6 | Spare | |x|(Part B) Not used |=============================================================================== If the Part Number field is 0, the rest of the message is interpreted @@ -2985,15 +3033,16 @@ Indicator; they always occur in the same order but some may be omitted. [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description | Member | Units -|0-5 | 6 | Message Type | type | Unsigned integer: 25 -|6-7 | 2 | Repeat Indicator | repeat | As in CNB -|8-37 | 30 | MMSI | mmsi | Unsigned integer: 9 digits -|38 | 1 | Destination indicator | addressed | 0=broadcast,1=addressed -|39 | 1 | Binary data flag | structured | See below -|40 |0/30 | Destination MMSI | dest_mmsi | Message destination -|? |0/16 | Application ID | app_id | Unsigned integer -|? |0-128 | Data | data | Binary data +|Field |Len |Description | Member |T|Units +|0-5 | 6 | Message Type | type |u|Constant: 25 +|6-7 | 2 | Repeat Indicator | repeat |u|As in CNB +|8-37 | 30 | MMSI | mmsi |u|9 digits +|38 | 1 | Destination indicator | addressed |b|0=broadcast, + 1=addressed. +|39 | 1 | Binary data flag | structured |u|See below +|40 |0/30 | Destination MMSI | dest_mmsi |u|Message destination +|? |0/16 | Application ID | app_id |u|Unsigned integer +|? |0-128 | Data | data |d|Binary data |=============================================================================== If the 'addressed' flag is on, 30 bits of data at offset 40 are @@ -3018,16 +3067,17 @@ Takes up 60-1064 bits (up to 5 slots). [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description | Member | Units -|0-5 | 6 | Message Type | type | Unsigned integer: 26 -|6-7 | 2 | Repeat Indicator | repeat | As in CNB -|8-37 | 30 | MMSI | mmsi | Unsigned integer: 9 digits -|38 | 1 | Destination indicator| addressed | 0=broadcast,1=addressed -|39 | 1 | Binary data flag | structured | See below -|40 |0/30 | Destination MMSI | dest_mmsi | Message destination -|? |0/16 | Application ID | app_id | Unsigned integer -|? |0-1004| Data | data | Binary data -|? |20 | Radio status | radio | See <<IALA>> for details. +|Field |Len |Description | Member |T|Units +|0-5 | 6 | Message Type | type |u|Constant: 26 +|6-7 | 2 | Repeat Indicator | repeat |u|As in CNB +|8-37 | 30 | MMSI | mmsi |u|9 digits +|38 | 1 | Destination indicator| addressed |b|0=broadcast, + 1=addressed. +|39 | 1 | Binary data flag | structured |u|See below +|40 |0/30 | Destination MMSI | dest_mmsi |u|Message destination +|? |0/16 | Application ID | app_id |u|Unsigned integer +|? |0-1004| Data | data |d|Binary data +|? |20 | Radio status | radio |u|See <<IALA>> for details. |=============================================================================== The data field may span up to 5 256-bit slots in addition to the tail @@ -3054,25 +3104,26 @@ increased propagation delays associated with long-range detection [frame="topbot",options="header"] |============================================================================== -|Field |Len |Description |Member |Units -|0-5 | 6 |Message Type |type |Unsigned integer: 27 -|6-7 | 2 |Repeat Indicator |repeat |As in CNB -|8-37 | 30 |MMSI |mmsi |Unsigned integer: 9 digits -|38-38 | 1 |Position Accuracy |accuracy |See Common Navigation Block -|39-39 | 1 |RAIM flag |raim |See Common Navigation Block -|40-43 | 4 |Navigation Status |status |See Common Navigation Block -|44-61 | 18 |Longitude |lon |Signed: minutes/10 -| | | | |East positive, West negative -| | | | |181000 = N/A (default) -|62-78 | 17 |Latitude |lat |Signed: minutes/10 -| | | | |North positive, South negative -| | | | |91000 = N/A (default) -|79-84 | 6 |Speed Over Ground |speed |Knots (0-62); 63 = N/A (default) -|85-93 | 9 |Course Over Ground |course |0 to 359 degrees, -| | | | |511 = not available -|94-94 | 1 |GNSS Position status|gnss |0 = current GNSS position -| | | | |1 = not GNSS position (default) -|95-95 | 1 |Spare | |Not used +|Field |Len |Description |Member |u|Units +|0-5 | 6 |Message Type |type |u|Constant: 27 +|6-7 | 2 |Repeat Indicator |repeat |u|As in CNB +|8-37 | 30 |MMSI |mmsi |u|Unsigned integer: 9 digits +|38-38 | 1 |Position Accuracy |accuracy |u|See Common Navigation Block +|39-39 | 1 |RAIM flag |raim |u|See Common Navigation Block +|40-43 | 4 |Navigation Status |status |u|See Common Navigation Block +|44-61 | 18 |Longitude |lon |i|minutes/10 + East positive, West negative + 181000 = N/A (default) +|62-78 | 17 |Latitude |lat |i|minutes/10 + North positive, South negative + 91000 = N/A (default) +|79-84 | 6 |Speed Over Ground |speed |u|Knots (0-62); + 63 = N/A (default) +|85-93 | 9 |Course Over Ground |course |u|0 to 359 degrees, + 511 = not available. +|94-94 | 1 |GNSS Position status|gnss |u|0 = current GNSS position + 1 = not GNSS position (default) +|95-95 | 1 |Spare | |x|Not used |============================================================================== Note: Type 27 has not been observed in the wild as of early 2011. |