Filter
Top Products
Appendices
42 Test Bed Receiver Subsystem Addendum – Rev 1
Table 2 Time Status
Value Description
0
GLONASS time floating
1 GLONASS time fixed
Example:
$GCLA,994,149871.00,10787,10.62179349,167.82950123,1121,
-3.0544738044739E-007,9,4,00000000*7B,[CR][LF]GCLB
GCLB
Format: Message ID = 88 Message byte count = 68
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 Leap seconds plus three hour Moscow time offset 4 integer seconds 24
5 Fractional offset calculated by filter 8 double meters 28
6 Variance of fractional offset 8 double metres
2
36
7 Calendar day number within four year period beginning since the leap
year
4 integer day 44
8 From GLONASS almanac - GLONASS time scale correction to UTC
(SU) given at beginning of day NA
8 double seconds 48
9 Number of GPS satellites 4 integer 56
10 Number of GLONASS satellites 4 integer 60
11 Status flags 4 integer -
64