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D Logs summary
200 MiLLennium Command Descriptions Manual
SVDB
Format: Message ID = 36 Message byte count = 36 +(obs*68)
Field # Data Bytes Format Units Offset
1 Sync 3 char 0
(header) Checksum 1 char 3
Message ID 4 integer 4
Message byte count 4 integer 8
2 Week number 4 integer weeks 12
3 Time in seconds 8 double seconds 16
4 Receiver clock error 8 double metres 24
5 Number of observations to follow (obs) 4 integer 32
6 Satellite PRN number 4 integer 36
7 x coordinate of satellite 8 double metres 40
8 y coordinate of satellite 8 double metres 48
9 z coordinate of satellite 8 double metres 56
10 Satellite clock correction 8 double metres 64
11 Ionospheric correction 8 double metres 72
12 Tropospheric correction 8 double metres 80
13 Decoded differential correction used 8 double metres 88
14 Range weight standard deviation 8 double metres 96
15... Next PRN offset = 36 + (obs
*
68) where obs varies from 0 to (obs-1)