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Position Data Glossary of Terms
| Nav Mode | - | User Operating Mode (0 = Initialization, 1 = SPS, 2 = NPA, 3 = PA) |
| Nav Status | - | Navigation Solution is valid (1 = yes, 0 = no) |
| Sat Valid | - | Number of GPS & GEO satellites in user solution |
| Flag | - | Receiver data validity flag (0 = RCVR valid, 1-10 = Number of healthy SV�s not used, -1 = solution has diverged) |
| HDOP | - | Horizontal Dilution of Precision |
| VDOP | - | Vertical Dilution of Precision |
| HPL | - | Horizontal Protection Level (meters) |
| VPL | - | Vertical Protection Level (meters) |
| East Error | - | East Position Error = Estimate � Truth (meters) |
| North Error | - | North Position Error = Estimate � Truth (meters) |
| Vert Error | - | Vertical Position Error = Estimate � Truth (meters) |
Range Data Glossary of Terms
| Elevation | - | Satellite elevation in degrees (0 � 90) |
| Azimuth | - | Satellite azimuth in degrees (0 � +/-180) |
| Quality | - | Supported Operating Mode (0 = invalid, 1 = SPS, 2 = NPA, 3 = PA) |
| Validity | - | Range Error is used in Position Solution (1 = yes, 0 = no) |
| Tropo Delay | - | Slant Tropospheric Delay (meters) |
| Error | - | Range Error to Satellite: Estimate - Truth (meters) |
| Total UDRE | - | Total User Differential Range Error (meters) |
| Iono Error | - | Ionospheric Error: Estimate � Truth (meters) |
| Iono Delay | - | Ionospheric Delay (meters) |
| Residual | - | Navigation Solution Range Residual |
| UISE | - | User Ionospheric Slant Error (meters) |
| UDRE | - | WAAS User Differential Range Error (meters) |
| Long Corrections | - | WAAS Long Corrections (meters) |
| Corrections | - | WAAS Fast Corrections (meters) |
| Rate Corrections | - | WAAS Clock Corrections (meters) |
| Diff Delay | - | Dual Frequency Iono Delay Calculated against L1 |
| SNR | - | Signal to Noise Ratio (dB) |
| Status | - | RCVR Signal Data Flag (1 = valid, 0 = invalid) |
| Flags | - | Signal Used in Calculation (0 = Not Used, 1 = Used) |
| KLOB Iono Delay | - | Ionospheric Delay Calculated via Klobuchar Model |
| SV Used IND | - | Ignore, Internal Project use only |
Icon Color Thresholds
| Flag |
>=5 : Red >=3 : Orange >=1 : Yellow |
|
| Up Error |
>=5 : Red >=2.5 : Orange >=1.5 : Yellow |
|
| Sats Valid | <=4 : Red | |