Improve comments in satellite_t.

1 files changed, 3 insertions, 2 deletions

diff --git a/gps.h b/gps.h
index bd429b20..daccd116 100644
--- a/gps.h
+++ b/gps.h
@@ -1797,10 +1797,11 @@ struct ais_t
     };
 };
 
+/* basic data, per PRN, from GPGSA and GPGSV */
 struct satellite_t {
     double ss;		/* signal-to-noise ratio (dB) */
-    bool used;		/* PRNs of satellites used in solution */
-    short PRN;		/* PRNs of satellite */
+    bool used;		/* this satellite used in solution */
+    short PRN;		/* PRN of this satellite */
     short elevation;	/* elevation of satellite */
     short azimuth;	/* azimuth */
 };