National Geospatial-Intelligence Agency

The National Geospatial-Intelligence Agency (NGA) is a combat support agency within the U.S. Department of Defense that provides geospatial intelligence in support of national security. Through its Office of Geomatics, NGA publishes the Earth-Info portal, which exposes a REST API in OpenAPI format for downloading GPS ephemeris products, Earth Orientation Parameter Predictions (EOPP), Navdata clock state files, and short-term orbit prediction products. NGA also maintains the WGS 84 reference frame, EGM2008 gravitational model, and the GEOTRANS coordinate conversion tool.

1 APIs 0 Features

Federal GovernmentGeospatialIntelligenceDefenseGeomatics

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opencollection: 1.0.0
info:
  name: NGA Earth-Info REST API
  version: 1.0.0
items:
- info:
    name: Ephemeris
    type: folder
  items:
  - info:
      name: Download GPS ephemeris (Center of Mass)
      type: http
    http:
      method: GET
      url: https://earth-info.nga.mil/api/ephemeris/center-of-mass
      params:
      - name: date
        value: ''
        type: query
        description: Target date in YYYY-MM-DD format.
    docs: Returns the GPS ephemeris product referenced to the satellite Center of Mass for the specified date.
  - info:
      name: Download GPS ephemeris (Antenna Phase Center)
      type: http
    http:
      method: GET
      url: https://earth-info.nga.mil/api/ephemeris/antenna-phase-center
      params:
      - name: date
        value: ''
        type: query
        description: Target date in YYYY-MM-DD format.
    docs: Returns the GPS ephemeris product referenced to the Antenna Phase Center (APC) for the specified date.
- info:
    name: EOPP
    type: folder
  items:
  - info:
      name: Download Earth Orientation Parameter Predictions
      type: http
    http:
      method: GET
      url: https://earth-info.nga.mil/api/eopp
      params:
      - name: date
        value: ''
        type: query
        description: Target date in YYYY-MM-DD format.
      - name: format
        value: ''
        type: query
        description: EOPP product format.
    docs: Returns Earth Orientation Parameter Prediction data for the specified date in the requested format.
- info:
    name: Clock
    type: folder
  items:
  - info:
      name: Download Navdata clock state file
      type: http
    http:
      method: GET
      url: https://earth-info.nga.mil/api/clock-state
      params:
      - name: date
        value: ''
        type: query
        description: Target date in YYYY-MM-DD format.
    docs: Returns the Navdata clock state file for the specified date.
- info:
    name: Orbit
    type: folder
  items:
  - info:
      name: Download 9-day orbit prediction
      type: http
    http:
      method: GET
      url: https://earth-info.nga.mil/api/orbit/9-day
      params:
      - name: date
        value: ''
        type: query
        description: Target date in YYYY-MM-DD format.
    docs: Returns the 9-day GPS orbit prediction product for the specified date.
  - info:
      name: Download 30-day orbit prediction
      type: http
    http:
      method: GET
      url: https://earth-info.nga.mil/api/orbit/30-day
      params:
      - name: date
        value: ''
        type: query
        description: Target date in YYYY-MM-DD format.
    docs: Returns the 30-day GPS orbit prediction product for the specified date.
bundled: true

National Geospatial-Intelligence Agency

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NGA Earth-Info REST API

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NGA Earth-Info REST API

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