H.1 Navigation Parameters - Novatel MiLLennium OM-20000040 User Manual

Reference Description
A FROM, lat-lon
B TO, lat-lon
AB Great circle line drawn between
FROM A lat-lon and TO B lat-lon
AC Track offset from A to C
BD Track offset from B to D
CD Offset track to steer (parallel to AB)
H Variation (local MAGVAR correction = -20°)
J True bearing
AB - True bearing = 70°
H.2.3 POSA/B COMPUTED POSITION
This log will contain the last valid best-available-position and time-calculated referenced to the antenna phase
center. The position is in geographic coordinates in degrees based on your specified datum (default is WGS84).
The height is referenced to mean sea level. The receiver time is in GPS weeks and seconds into the week. The
estimated standard deviations of the solution and current filter status are also included.
POSA
Structure:
$POSA week
lat std lon std
1
Note: See Table H.8 (Page 111)
Example:
$POSA,991,428326.00,51.11638173,-114.03824540,
1092.104,-16.271,61,14.412,8.799,25.020,0*1E
GPS/GLONASS Receiver User Manual Rev 1
Figure H.1 Navigation Parameters
Reference
AB - Magnetic bearing = True + (MAGVAR correction) = 70° + (-20°) = 50°
seconds lat lon
hgt std 1
sol status
Description
F Current GPS position
FD Current distance and bearing from F to D
E Xtrack perpendicular reference point
EF Xtrack error from E to F
(perpendicular to CD)
FG Along track from F to G
(perpendicular to BD)
I Magnetic bearing
hgt undulation
*xx
H NovAtel Format Logs
datum ID
[CR][LF]
103