Advanced Navigation GNSS Compass, Reference Manual

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10.4.28 External Body Velocity Packet
This packet has been defined to support a single velocity standard deviation for all three axes, or, different
values for all three axes. Modify the packet length in the packet header accordingly, depending on which format
you are using.
External Body Velocity Packet
Packet ID 47
Length 16 or 24
Read / Write Read / Write
Field # Bytes Off-
set Data
Type Size Description
1 0 fp32 4 Velocity X (m/s)
2 4 fp32 4 Velocity Y (m/s)
3 8 fp32 4 Velocity Z (m/s)
4 12 fp32 4 Velocity X standard deviation (m/s)
5 16 fp32 4 OPTIONAL: Velocity standard deviation Y
(m/s)
6 20 fp32 4 OPTIONAL: Velocity standard deviation Z
(m/s)
Table 76: External Body Velocity Packet
10.4.29 External Heading Packet
External Heading Packet
Packet ID 48
Length 8
Read / Write Read / Write
Field # Bytes Offset Data Type Size Description
1 0 fp32 4 Heading (rad)
2 4 fp32 4 Heading standard deviation (rad)
Table 77: External Heading Packet
10.4.30 Running Time Packet
This packet provides the running time in seconds since the most recent power on.
Running Time Packet
Packet ID 49
Length 8
Read / Write Read
Field # Bytes Offset Data Type Size Description
v2.0 Page 101 04 Nov 2021
GNSS Compass Reference Manual • Advanced Navigation Packet Protocol