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
3Time in seconds 8 double seconds 16
4Receiver clock error 8 double metres 24
5Number of observations to follow (obs) 4 integer 32
6Satellite PRN number 4 integer 36
7x coordinate of satellite 8 double metres 40
8y coordinate of satellite 8 double metres 48
9z 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 metr es 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)