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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

-

GNSSANT

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

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