FP_A-GNSSCORR

Description:

This message contains status information about the GNSS correction data such as statistics regarding the correction data tracked by the GNSS receivers (e.g., number of L1 and L2 signals), the fix type, the average correction data latency, update rate, data rate, and message rate, as well as the correction station position and baseline.

Example messages:

CODE

$FP,GNSSCORR,1,2237,250548.999744,8,25,18,8,25,18,,,,,,,,,*24
$FP,GNSSCORR,1,2237,250035.999865,8,25,18,8,25,18,0.2,1.0,0.8,5.3,2,47.366986804,8.532965023,481.1094,7254*3F

Message fields:

#	Field	Format	Unit	Example	Description
1	`msg_type`	String	-	`GNSSCORR`	Message type, always `GNSSCORR` for this message
2	`msg_version`	Numeric	-	`1`	Message version, always `1` for this version of the `GNSSCORR` message
3	`gps_week`	Numeric	-	`2237`	GPS week number, range 0–9999
4	`gps_tow`	Float (.6)	s	`250035.999865`	GPS time of week, range 0.000–604799.999999
5	`gnss1_fix`	Numeric	-	`8`	Fix status of GNSS1 receiver or null, see below
6	`gnss1_nsig_l1`	Numeric	-	`25`	Number of L1 signals with correction data tracked by GNSS1 receiver, range 0–100 or null
7	`gnss1_nsig_l2`	Numeric	-	`18`	Number of L2 signals with correction data tracked by GNSS1 receiver, range 0–100 or null
8	`gnss2_fix`	Numeric	-	`8`	Fix status of GNSS2 receiver or null, see below
9	`gnss2_nsig_l1`	Numeric	-	`25`	Number of L1 signals with correction data tracked by GNSS2 receiver, range 0–100 or null
10	`gnss2_nsig_l2`	Numeric	-	`18`	Number of L2 signals with correction data tracked by GNSS2 receiver, range 0–100 or null
11	`corr_latency`	Float (.1)	s	`0.2`	Average correction data latency (10s window), range 0.0–99.9 or null
12	`corr_update_rate`	Float (.1)	Hz	`1.0`	Average correction update rate (10s window), range 0.0–10.0 or null
13	`corr_data_rate`	Float (.1)	KiB/s	`0.8`	Average correction data rate (10s window), range 0.0–50.0 or null
14	`corr_msg_rate`	Float (.1)	msgs/s	`5.3`	Average correction message rate (10s window), range 0-50 - or null
15	`sta_id`	Numeric	-	`2`	Correction station ID, range 0–4095 or null
16	`sta_lat`	Float (.9)	deg	`47.366986804`	Correction station latitude, range -90.000000000–90.000000000, > 0 for North, < 0 for South, or null
17	`sta_lon`	Float (.9)	deg	`8.532965023`	Correction station longitude, range -180.000000000–180.000000000, > 0 for East, < 0 for West, or null
18	`sta_height`	Float (.4)	m	`481.1094`	Correction station ellipsoidal height, range -1000.0000-50000.0000 or null
19	`sta_dist`	Numeric	m	`7254`	Correction station baseline length (approximate 3d distance), range 0–100000 or null

Values for gnss1_fix and gnss2_fix:

Value	Description
`0`	Unknown
`1`	No fix
`2`	Dead-reckoning only
`3`	Time-only fix
`4`	Single 2D fix
`5`	Single 3D fix
`6`	Single 3D fix with dead-reckoning
`7`	RTK float fix
`8`	RTK fixed fix