Definition: OGC Well Known Text 2 (2019)
DATUM["Gunung Segara (Jakarta)", ELLIPSOID["Bessel 1841",6377397.155,299.1528128, LENGTHUNIT["metre",1]], ID["EPSG",6820]], PRIMEM["Jakarta",106.807719444444, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8908]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Gunung Segara (Jakarta)", "ellipsoid": { "name": "Bessel 1841", "semi_major_axis": 6377397.155, "inverse_flattening": 299.1528128 }, "prime_meridian": { "name": "Jakarta", "longitude": 106.807719444444 }, "scope": "Topographic mapping.", "area": "Indonesia - Kalimantan - onshore east coastal area including Mahakam delta coastal and offshore shelf areas.", "bbox": { "south_latitude": -4.24, "west_longitude": 114.55, "north_latitude": 4.29, "east_longitude": 119.06 }, "id": { "authority": "EPSG", "code": 6820 } }