{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
    "Version": "2.2.6",
    "Instrument": {
      "ResourceID": "spase://SMWG/Instrument/MMS/4/FIELDS/EDI",
      "ResourceHeader": {
        "ResourceName": "MMS 4 FIELDS Suite, Electron Drift Instrument (EDI)",
        "AlternateName": "MMS 4 FIELDS Suite, EDI",
        "ReleaseDate": "2021-07-20T13:41:27Z",
        "Description": "Electron Drift Instrument (EDI) determines the electric and magnetic fields by measuring the drift of ~1 keV electrons emitted from the Gun Detector Unit (GDU). Each GDU sends (receives) a coded beam to (from) the other EDI-GDU. The EDI gun is being developed at the Institut fuer Weltraumforschung of the Austrian Academy of Sciences; EDI optics are being developed at the University of Iowa. It is part of the fields investigation which is led by Co-I R. B. Torbert (University of New Hampshire).",
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/James.L.Burch",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/Roy.B.Torbert",
            "Role": "CoInvestigator"
          }
        ],
        "InformationURL": {
          "Name": "Mission instrument web page",
          "URL": "https://www.nasa.gov/mission_pages/mms/spacecraft/mms-instruments.html",
          "Description": "Mission web page that describes the payload (instruments) on each spacecraft.",
          "Language": "English"
        }
      },
      "InstrumentType": "ElectronDriftInstrument",
      "InvestigationName": "MMS 4 FIELDS Suite, Electron Drift Instrument",
      "OperatingSpan": {
        "StartDate": "2015-03-13T02:44:00"
      },
      "ObservatoryID": "spase://SMWG/Observatory/MMS/4"
    }
  }
}