GSOF message: Second Antenna Position

This message describes the position and solution quality for the second antenna. It contains the following data:

  • Time in GPS weeks and milliseconds

  • Position type and source for the solution of the second antenna

  • WGS-84 latitude and longitude, in radians

  • WGS-84 height, in meters

  • East, North, Up error estimates

Second antenna position (Type 97 record)

Field

Item

Type

Value

Meaning

0

Output record type

Char

61h

Latitude, longitude, and height output record

1

Record length

Char

2Ch

Bytes in record

2 to 3

GPS week number

Short

 

GPS week count since January 1980

4 to 7

GPS time (ms)

Long

 

GPS time, in milliseconds, of GPS week

8

Position type

Char

 

The receiver's internal designation for the type of position solution.

9

Source

Char

01h

1: Moving base heading vector from the primary antenna.

At this time, no other sources are supported.

10 to 17

Latitude

Double

radians

Latitude from WGS-84 datum

18 to 25

Longitude

Double

radians

Longitude from WGS-84 datum

26 to 33

Height

Double

meters

Height from WGS-84 datum

34 to 37

Sigma east

Float

meters

1-sigma error estimate

38 to 41

Sigma north

Float

meters

1-sigma error estimate

42 to 45

Sigma up

Float

meters

1-sigma error estimate