| 21. | Elevations are from the National Geodetic Survey ( NGS ) when available.
|
| 22. | The coordinate system is related to Earth by the WGS84 geodetic datum:
|
| 23. | She was then transferred to the United States Coast and Geodetic Survey.
|
| 24. | It is one of two geodetic points of the town.
|
| 25. | Some fundamental stations are an astronomical or satellite geodetic observatory.
|
| 26. | Her updates to geodetic science helped determine the parallax of the moon.
|
| 27. | HGRS87 replaced an earlier " de facto " geodetic system.
|
| 28. | US National Geodetic Survey data sheets give both dynamic and orthometric values.
|
| 29. | Topographic maps of this area are dated ( see USGS Geodetic Survey.
|
| 30. | The new World Geodetic System was called WGS 84.
|
