137
TIM – TP (0x0D 0x01)
It periodically polls the time pulse data.
Header ID
Data
Length
Data
Checksum
0xB5 0x62
0x0D 0x01
16
See below
CK_A CK_B
Data
Offset bytes
Format
Descriptions
Notes
0
U4
GPS time of week: time pulse
(ms)
4
U4
Sub-millisecond part of “GPS
time of week” (ms/2^32)
8
I4
Quantization error of time pulse
(ps)
12
U2
GPS week number
Time pulse
14
U1
Flags
Bit 0 – 0: GPS time base; 1: UTC
time base
Bit 1 – 0: UTC not available; 1:
UTC available
15 U1
Reserved