RANGEGPSL1
L1 version of the RANGE log
|
Platform: |
OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700, SMART7, SMART2 |
This log is identical to the RANGE log except that it only includes GPS L1 C/A observations.
Message ID: 631
Log type: Synch
Recommended input:
log rangegpsl1a ontime 30
ASCII example:
#RANGEGPSL1A,USB1,0,55.0,FINESTEERING,2209,512583.000,02000020,5862,16809;
10,
26,0,24030889.100,0.199,-126283196.274792,0.012,2752.781,44.3,987.017,1810dc04,
2,0,22557616.108,0.123,-118541064.672676,0.007,-2277.646,48.6,1082.960,0810dc24,
18,0,23330317.018,0.126,-122601657.447823,0.009,3147.617,48.4,1082.419,0810dc44,
12,0,23997160.481,0.151,-126105903.891743,0.009,-3940.361,46.8,1081.940,1810dc64,
5,0,20822721.607,0.083,-109424141.788836,0.005,1522.260,52.0,1082.908,1810dc84,
20,0,20953423.978,0.087,-110110984.182224,0.007,-827.676,51.6,1082.829,0810dca4,
29,0,20734204.928,0.077,-108958983.599878,0.006,1473.416,52.6,1082.708,1810dcc4,
31,0,24809616.479,0.239,-130375401.308516,0.014,-2112.775,42.8,1082.271,0810dd04,
9,0,25163112.825,0.207,-132233041.316998,0.013,-1279.863,44.0,1065.218,1810dd24,
25,0,21543476.977,0.093,-113211728.999577,0.008,-2507.055,50.9,1082.449,0810ddc4
*51b3705b
Since the RANGEGPSL1 log includes only GPS L1 C/A observations, it is smaller in size than the RANGE log which contains entries for multiple systems and signals. Use the RANGEGPSL1 log when data throughput is limited and you are only interested in GPS L1 C/A range data. For GPS L1 only models, RANGE and RANGEGPSL1 logs are identical.
|
Field |
Field type |
Description |
Format |
Binary bytes |
Binary offset |
|
1 |
Log header |
RANGEGPSL1 header For information about log headers, see ASCII, Abbreviated ASCII or Binary. |
|
H |
0 |
|
2 |
# obs |
Number of L1 observations with information to follow |
Long |
4 |
H |
|
3 |
PRN |
Satellite PRN number of range measurement (1-32) |
Ushort |
2 |
H+4 |
|
4 |
Reserved |
Ushort |
2 |
H+6 |
|
|
5 |
psr |
Pseudorange measurement (m) |
Double |
8 |
H+8 |
|
6 |
psr std |
Pseudorange measurement standard deviation (m) |
Float |
4 |
H+16 |
|
7 |
adr |
Carrier phase, in cycles (accumulated Doppler range) |
Double |
8 |
H+20 |
|
8 |
adr std |
Estimated carrier phase standard deviation (cycles) |
Float |
4 |
H+28 |
|
9 |
dopp |
Instantaneous carrier Doppler frequency (Hz) |
Float |
4 |
H+32 |
|
10 |
C/No |
Carrier to noise density ratio C/No = 10[log10(S/N0)] (dB-Hz) |
Float |
4 |
H+36 |
|
11 |
locktime |
Number of seconds of continuous tracking (no cycle slipping) |
Float |
4 |
H+40 |
|
12 |
ch-tr-status |
Tracking status (see Table: Channel tracking status) |
Ulong |
4 |
H+44 |
|
13... |
Next PRN offset = H + 4 + (#obs x 44) |
||||
|
14 |
xxxx |
32-bit CRC (ASCII and Binary only) |
Ulong |
4 |
H+4+ |
|
15 |
[CR][LF] |
Sentence terminator (ASCII only) |
- |
- |
- |