Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: National Land Surveying and Mapping Center (NLSC), http://www.nlsc.gov.tw
Revision date: 2008-08-11
Scope: Geodesy, engineering survey, topographic mapping.
Remarks: Adopted in 1998.
Area of use: Taiwan, Republic of China - onshore and offshore - Taiwan Island, Penghu (Pescadores) Islands.
WGS84 bounds:
123.61 17.36
114.32 26.96
Definition: OGC Well Known Text
DATUM["Taiwan_Datum_1997", SPHEROID["GRS 1980",6378137,298.257222101, AUTHORITY["EPSG","7019"]], AUTHORITY["EPSG","1026"]]
Definition: OGC Well Known Text 2 (2019)
DATUM["Taiwan Datum 1997", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ID["EPSG",1026]]
Definition: ESRI Well Known Text
DATUM["D_TWD_1997", SPHEROID["GRS_1980",6378137.0,298.257222101]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Taiwan Datum 1997", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "scope": "Geodesy, engineering survey, topographic mapping.", "area": "Taiwan, Republic of China - onshore and offshore - Taiwan Island, Penghu (Pescadores) Islands.", "bbox": { "south_latitude": 17.36, "west_longitude": 114.32, "north_latitude": 26.96, "east_longitude": 123.61 }, "id": { "authority": "EPSG", "code": 1026 } }