EPSG:4378 — SWEREF99 (geocentric)

{
  "type": "CoordinateReferenceSystem",
  "code": 4378,
  "name": "SWEREF99 (geocentric)",
  "kind": "geocentric",
  "area": "Sweden",
  "unit": "metre",
  "bbox": [
    54.96,
    10.03,
    69.07,
    24.17
  ],
  "proj4": null
}