Unit: metre
Data source: EPSG
Information source: New Brunswick Geographic Information Corporation land and water information standards manual
Revision date: 1997-07-22
Definition: OGC Well Known Text
SPHEROID["Average Terrestrial System 1977",6378135,298.257, AUTHORITY["EPSG","7041"]]
Definition: OGC Well Known Text 2 (2019)
ELLIPSOID["Average Terrestrial System 1977",6378135,298.257, LENGTHUNIT["metre",1], ID["EPSG",7041]]
Definition: ESRI Well Known Text
SPHEROID["ATS_1977",6378135.0,298.257]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "Ellipsoid", "name": "Average Terrestrial System 1977", "semi_major_axis": 6378135, "inverse_flattening": 298.257, "id": { "authority": "EPSG", "code": 7041 } }