Coordinate Datum Code (coord_datum_cd)
Indicates the method used to determine latitude longitude values.
| Code | Description |
|---|---|
| C | Calculated from land net |
| D | Differentially corrected Global Positioning System. |
| W | GNSS1 - Level 1 Quality Survey Grade Global Navigation Satellite System |
| X | GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System |
| Y | GNSS3 - Level 3 Quality Survey Grade Global Navigation Satellite System |
| Z | GNSS4 - Level 4 Quality Survey Grade Global Navigation Satellite System |
| N | Interpolated from Digital MAP. |
| M | Interpolated from MAP. |
| L | Long range navigation system. |
| G | Mapping grade GPS unit (handheld accuracy range 12 to 40 ft) |
| R | Reported. |
| F | Survey-grade GPSF |
| S | Transit, theodolite, or other surveying method. |
| U | Unknown. |
