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Appendices
40 Test Bed Receiver Subsystem Addendum – Rev 1
GALB
Format: Message ID = 78 Message byte count = 112
Field # Data
Bytes Format Units Offset
Sync 3 char
0
Checksum 1 char
3
Message Id 4 integer
4
1
Message byte count 4 integer bytes 8
2 Week number 4 integer weeks 12
3 Seconds of week 8 double seconds 16
4 Reference week (GLONASS time in GPS format) 4 integer weeks 24
5 Reference time (GLONASS time in GPS format) 8 double seconds 28
6 Slot number 4 integer ordinal 36
7 Frequency 4 integer ordinal 40
8 Health 4 integer - 44
9 Ascending node time 8 double seconds 48
10 Ascending node longitude 8 double rad 56
11 Inclination correction 8 double rad 64
12 Eccentricity 8 double - 72
13 Argument of perigree 8 double rad 80
14 Orbital period correction 8 double seconds 88
15 Orbital period rate 8 double s/orbit 96
16 Clock offset to UTC 8 double seconds 104