A longstanding bug in error modeling fixed.

The guard controllong DOP computation wasn't right.  The result was
that x/y error estimates were computed much less often than they
should have been.

1 files changed, 22 insertions, 23 deletions

diff --git a/test/daemon/navcom.log.chk b/test/daemon/navcom.log.chk
index b01d6b4a..a9e765a8 100644
--- a/test/daemon/navcom.log.chk
+++ b/test/daemon/navcom.log.chk
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