and 
NMEA GST message
Popular NMEA messages
GNSS pseudorange error statistics (GST)
| Message | NMEA-Standard-GST GNSS pseudorange error statistics |
| Comment | This message reports statistical information on the quality of the position solution. |
| Information | Number of fields: 11 |
| Structure | $xxGST,time,rangeRms,stdMajor,stdMinor,orient,stdLat,stdLong,stdAlt*cs\r\n |
| Example | $$GPGST,082356.00,1.8,,,,1.7,1.3,2.2*7E\r\n |
Payload
| Field | Name | Format | Unit | Example | Description |
|---|---|---|---|---|---|
| 0 | xxGST | string | - | $GPGST | GST Message ID (xx = current Talker ID) |
| 1 | time | hhmmss.ss | - | 082356.00 | UTC time of associated position fix |
| 2 | rangeRms | numeric | m | 1.8 | RMS value of the standard deviation of the ranges |
| 3 | stdMajor | numeric | m | - | Standard deviation of semi-major axis |
| 4 | stdMinor | numeric | m | - | Standard deviation of semi-minor axis |
| 5 | orient | numeric | deg | - | Orientation of semi-major axis |
| 6 | stdLat | numeric | m | 1.7 | Standard deviation of latitude error |
| 7 | stdLong | numeric | m | 1.3 | Standard deviation of longitude error |
| 8 | stdAlt | numeric | m | 2.2 | Standard deviation of altitude error |
| 9 | cs | hexadecimal | - | *7E | Checksum |
| 10 | CRLF | character | - | - | Carriage return and line feed |
Based on NMEA documentation provided by u-blox.
Learn more about NMEA protocol:
