Raw Satellite Ephemeris Packet
Certus Manager will automatically convert this packet to RINEX 3.02 format.
Note: This packet is enabled automatically when packet 60 (Raw Satellite Data Packet) is enabled. This packet cannot be enabled independently of Packet 60.
| Raw Satellite Ephemeris Packet | ||||
|---|---|---|---|---|
| Packet ID | 61 | |||
| Length | Varies | |||
| Read / Write | Read | |||
| Field # | Bytes Offset | Data Type | Size | Description |
| 1 | 0 | u32 | 4 | Unix timestamp (seconds) |
| 2 | 4 | u8 | 1 | Satellite System |
| 3 | 5 | u8 | 1 | Satellite number (PRN) |
| For GPS Satellites (132 bytes) | ||||
|
5 |
6 |
u32 |
4 |
Time of ephemeris (Toe) (s) |
|
6 |
10 |
u16 |
2 |
Issue of Data Clock [IODC] (s) |
|
7 |
12 |
u16 |
2 |
Issue of Data Ephemeris [IODE] (s) |
|
8 |
14 |
fp32 |
4 |
Satellite Clock Bias [af0] (s) |
|
9 |
18 |
fp32 |
4 |
Satellite Clock Drift [af1] (s/s) |
|
10 |
22 |
fp32 |
4 |
Satellite Clock Drift Rate [af2] (s/s/s) |
|
11 |
26 |
fp32 |
4 |
Crs (m) |
|
12 |
30 |
fp32 |
4 |
Delta N (rad/s) |
|
13 |
34 |
fp64 |
8 |
M0 (rad) |
|
14 |
42 |
fp32 |
4 |
Cuc (rad) |
|
15 |
46 |
fp64 |
8 |
Eccentricity [e] |
|
16 |
54 |
fp32 |
4 |
Cus (rad) |
|
17 |
58 |
fp64 |
8 |
√A (√m) |
|
18 |
66 |
fp32 |
4 |
Cic (rad) |
|
19 |
70 |
fp64 |
8 |
OMEGA0 (rad) |
|
20 |
78 |
fp32 |
4 |
Cis (rad) |
|
21 |
82 |
fp64 |
8 |
i0 (rad) |
|
22 |
90 |
fp32 |
4 |
Crc (m) |
|
23 |
94 |
fp64 |
8 |
Omega (rad) |
|
24 |
102 |
fp64 |
8 |
Omega dot (rad/s) |
|
25 |
110 |
fp64 |
8 |
IDOT (rad/s) |
|
26 |
118 |
fp32 |
4 |
TGD (s) |
|
27 |
122 |
u16 |
2 |
Ephemeris week number |
|
28 |
124 |
u32 |
4 |
Transmission time (s) |
|
29 |
128 |
u16 |
2 |
User range accuracy (m) |
|
30 |
130 |
u16 |
2 |
|
| For GLONASS satellites (94 Bytes) | ||||
|
5 |
6 |
fp32 |
4 |
Satellite clock bias (s) |
|
6 |
10 |
fp32 |
4 |
Satellite frequency bias [gamma] |
|
7 |
14 |
fp64 |
8 |
Satellite position X (m) |
|
8 |
22 |
fp64 |
8 |
Satellite position Y (m) |
|
9 |
30 |
fp64 |
8 |
Satellite position Z (m) |
|
10 |
38 |
fp64 |
8 |
Satellite velocity X (m/s) |
|
11 |
46 |
fp64 |
8 |
Satellite velocity Y (m/s) |
|
12 |
54 |
fp64 |
8 |
Satellite velocity Z (m/s) |
|
13 |
62 |
fp64 |
8 |
Satellite acceleration X (m/s/s) |
|
14 |
70 |
fp64 |
8 |
Satellite acceleration Y (m/s/s) |
|
15 |
78 |
fp64 |
8 |
Satellite acceleration Z (m/s/s) |
|
16 |
86 |
u32 |
4 |
Message frame start time (s) |
|
17 |
90 |
u8 |
1 |
Age of operational information [E] (days) |
|
18 |
91 |
s8 |
1 |
Frequency slot number |
|
19 |
92 |
u8 |
1 |
Satellite Health |
|
20 |
93 |
u8 |
1 |
Reserved |
Raw Satellite Ephemeris Packet
GPS Flags
| Bit | Description |
|---|---|
|
0 |
Data flag for L2 P-code |
|
1-2 |
Codes on L2 channel |
|
3 |
Anti-spoof flag |
|
4-9 |
Satellite health |
|
10 |
Fit interval flag |
|
11 |
URA bad |
|
12-14 |
Satellite block type |
GPS Flags