- Over a hundred geodetic datums commonly used around the world
- World Geodetic System 1984 (WGS84)
- North American Datum 1983 (NAD83)
- North American Datum 1927 (NAD27)
- Ordinance Survey Great Britain 1936
- etc.
- NAVSTAR GPS relies on WGS84
- NAD83 and WGS84 are identical for most practical purposes
|