NMEA-0183 message: GST
Applicable receivers: All receivers
Position error statistics
An example of the GST message string is:
GST message fields
| 
                                     Field  | 
                                
                                     Meaning  | 
                            
|---|---|
| 
                                     1  | 
                                
                                     UTC of position fix  | 
                            
| 
                                     2  | 
                                
                                     RMS value of the pseudorange residuals; includes carrier phase residuals during periods of RTK (float) and RTK (fixed) processing  | 
                            
| 
                                     3  | 
                                
                                     Error ellipse semi-major axis 1-sigma error, in meters  | 
                            
| 
                                     4  | 
                                
                                     Error ellipse semi-minor axis 1-sigma error, in meters  | 
                            
| 
                                     5  | 
                                
                                     Error ellipse orientation, degrees from true north  | 
                            
| 
                                     6  | 
                                
                                     Latitude 1-sigma error, in meters  | 
                            
| 
                                     7  | 
                                
                                     Longitude 1-sigma error, in meters  | 
                            
| 
                                     8  | 
                                
                                     Height 1-sigma error, in meters  | 
                            
| 
                                     9  | 
                                
                                     The checksum data, always begins with *  |