{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
    "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
    "xsi:schemaLocation": "http://www.spase-group.org/data/schema https://www.spase-group.org/data/schema/spase-2_4_0.xsd",
    "Version": "2.4.0",
    "Instrument": {
      "ResourceID": "spase://SMWG/Instrument/TWINS2/LAD",
      "ResourceHeader": {
        "ResourceName": "TWINS2, Lyman-alpha Detector, LAD",
        "ReleaseDate": "2022-02-20T12:34:56.789",
        "RevisionHistory": {
          "RevisionEvent": {
            "ReleaseDate": "2022-02-20T12:34:56.789",
            "Note": "Assorted Observatories and Instruments: Files reformated. Metadata submitted by J.M. Weygand on 2021-11-16, reviewed by LFB"
          }
        },
        "Description": "TWINS2, Lyman-alpha Detector, LAD, The TWINS Lyman-alpha detector consists of two independent sensors to measure Lyman-alpha radiation being emitted by neutral hydrogen atoms. The sensors are oriented at angles of ±40° with respect to the actuator spin axis. Each sensor has a full width, half maximum, FWHM, field of view of 4° defined by collimation hole baffles, uses Lyman-a interference filters as narrow band transmissions filters, and applies a KBr or CsI photodiode for photon detection. The Lyman-alpha detector is located on the rotating actuator platform in order to provide a full 360° azimuthal angle coverage. It has a time resolution of 60 s.",
        "Acknowledgement": "D.J. McComas, Mission Principal Investigator, J. Goldstein, General Contact",
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Jerry.Goldstein",
            "Role": "GeneralContact"
          },
          {
            "PersonID": "spase://SMWG/Person/Lee.Frost.Bargatze",
            "Role": "MetadataContact"
          },
          {
            "PersonID": "spase://SMWG/Person/James.M.Weygand",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": {
          "Name": "NASA Master Catalog TWINS2 Lyman-alpha Detector",
          "URL": "https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=2008-010A-02",
          "Description": "Lyman-alpha Detector, LAD, Information and Details"
        }
      },
      "InstrumentType": "Imager",
      "InvestigationName": "Two Wide-angle Imaging Neutral-atom Spectrometer, TWINS",
      "OperatingSpan": {
        "StartDate": "2008-03-13T10:02:00"
      },
      "ObservatoryID": "spase://SMWG/Observatory/TWINS2"
    }
  }
}