SBAS17
GEO Almanac message
|
Platform: |
OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700, SMART7, SMART2 |
Almanacs for all GEOs are broadcast periodically to alert you of their existence, location, the general service provided, status and health.
Unused almanacs have a PRN number of 0 and should be ignored, see ASCII Example below.
Message ID: 980
Log Type: Asynch
Recommended Input:
log SBAS17a onchanged
ASCII Example:
#SBAS17A,USB1,0,52.0,SATTIME,2209,514511.000,02000020,896c,16809;133,3,0,131,0,-19136000,-37572600,0,0,0,0,0,133,0,-26616200,-32700200,26000,0,0,0,0,135,0,-24167000,-34541000,0,0,0,0,82496*a44a79e8
Each raw SBAS frame gives data for a specific frame decoder number. The SBAS17 message can be logged to view the data breakdown of SBAS frame 17 which contains GEO almanacs.
|
Field |
Field type |
Description |
Format |
Binary Bytes |
Binary Offset |
|
1 |
Log header |
SBAS17 header For information about log headers, see ASCII, Abbreviated ASCII or Binary. |
|
H |
0 |
|
2 |
prn |
Source PRN of message |
Ulong |
4 |
H |
|
3 |
#ents |
Number of almanac entries with information to follow |
Ulong |
4 |
H+4 |
|
4 |
data id |
Data ID type |
Ushort |
2 |
H+8 |
|
5 |
entry prn |
PRN for this entry |
Ushort |
2 |
H+10 |
|
6 |
health |
Health bits |
Ushort |
41 |
H+12 |
|
7 |
x |
ECEF x coordinate (m) |
Long |
4 |
H+16 |
|
8 |
y |
ECEF y coordinate (m) |
Long |
4 |
H+20 |
|
9 |
z |
ECEF z coordinate (m) |
Long |
4 |
H+24 |
|
10 |
x vel |
X rate of change (m/s) |
Long |
4 |
H+28 |
|
11 |
y vel |
Y rate of change (m/s) |
Long |
4 |
H+32 |
|
12 |
z vel |
Z rate of change (m/s) |
Long |
4 |
H+36 |
|
13... |
Next entry = H+8+(#ents x 32) |
||||
|
14 |
t0 |
Time of day in seconds (0 to 86336) Scaling = 64 |
Ulong |
4 |
H+8+ (#ents x 32) |
|
15 |
xxxx |
32-bit CRC (ASCII and Binary only) |
Ulong |
4 |
H+12+ (#ents x 32) |
|
16 |
[CR][LF] |
Sentence terminator (ASCII only) |
- |
- |
- |