D Logs Summary

MiLLennium GPSCard SW Version 4.503/4.52 Command Descriptions Manual Rev 2 141

ALMB

ALMB FORMAT:

Message ID = 18 Message byte count = 120

IONB FORMAT: Message ID = 16 Message byte count = 76

Field # Field Type Bytes Format Units Offset
1Sync 3 0
(header) Checksum 1 3
Message ID 4 4
Message byte count 4 8
2Satellite PRN number 4integer 12
3Eccentricity 8double 16
4Almanac ref. time 8double seconds 24
5Almanac ref. week 4integer weeks 32
6Omegadot - rate of right ascension 8double radians/second 36
7Right ascension 8double radians 44
8Argument of perigee w 8double radians 52
9Mean anomaly Mo 8double r adians 60
10 Clock aging parameter af0 8double seconds 68
11 Clock aging parameter af1 8double seconds/second 76
12 Corrected mean motion 8double radians/second 84
13 Semi-major axis A 8double meters 92
14 Angle of inclination 8double radians 100
15 Sv health from subframe 4, discrete 4integer 108
16 Sv health from subframe 5, discrete 4integer 112
17 Sv health from almanac, discrete 4integer 116
Field # Field Type Bytes Format Units Offset
1Sync 3char 0
(header) Checksum 1char 3
Message ID 4integer 4
Message byte count 4integer 8
2Alpha constant term 8double seconds 12
3Alpha 1st order term 8double sec/semicircle 20
4Alpha 2nd order term 8double sec/(semic.)228
5Alpha 3rd order term 8double sec/(semic.)336
6Beta constant term 8double seconds 44
7Beta 1st order term 8double sec/semic 52
8Beta 2nd order term 8double sec/(semic.)260
9Beta 3rd order term 8double sec/(semic.)368