Trimble Outdoors THUNDERBOLT 64057-00-ENG - Manual (Page 56)

A Trimble Standard Interface Protocol
54 Trimble ThunderBolt E GPS Disciplined Clock User Guide
Report Packet 0x58 Almanac Data Type 2
Note – All angles are in radians.
Report Packet 0x58 Almanac Health Data Type 3
Report Packet 0x58 Ionosphere Data Type 4
Byte Item Type Value Meaning
4 Toa (raw) UINT8 Table 2.8
5 SV_HEALTH UINT8 Table 2.8
6-9 e Single Table 2.8
10-13 toa Single Table 2.8
14-17 io Single Table 2.8
18-21 OMEGADOT Single Table 2.8
22-25 sqrt(A) Single Table 2.8
26-29 (OMEGA)0 Single Table 2.8
30-33 (OMEGA) Single Table 2.8
34-37 M0 Single Table 2.8
38-41 af0 Single Table 2.8
42-45 af1 Single Table 2.8
46-49 Axis Single Table 2.8
50-53 n Single Table 2.8
54-57 OMEGA_n Single Derived
58-61 ODOT_n Single Derived
62-65 tzc Single Time of collection (set to -1.0 if
there is no data available)
66-67 week number UINT16 GPS week number
68-69 WNa UINT16 Sec 2.4.5.2.3
Byte Item Type Meaning
4 Week number for health UINT8 Sec 2.4.5.3
5-36 SV health UINT8 Sec 2.4.5.3
37 toa for health UINT8 Sec 2.4.5.2.3
38 current toa UINT8 Time of collection
39-40 current week number UINT16 Time of collection
Byte Item Type Meaning
4-11 not used
12-15 a0 Single Sec 2.4.5.6
16-19 a1 Single Sec 2.4.5.6
20-23 a2 Single Sec 2.4.5.6
24-27 a3 Single Sec 2.4.5.6
28-31 b0 Single Sec 2.4.5.6