{
  "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/THEMIS/Ground/CANMAG/ATHA/ASI",
      "ResourceHeader": {
        "ResourceName": "THEMIS Ground Athabasca All Sky Imager",
        "AlternateName": "ATHA ASI",
        "ReleaseDate": "2022-02-20T12:34:56.789",
        "RevisionHistory": {
          "RevisionEvent": {
            "ReleaseDate": "2022-02-20T12:34:56.789",
            "Note": "THEMIS CANMAG Ground Magnetometer Instruments: Update obsolete aurora.phys.ucalgary.ca URL, HTTP to HTTPS. Metadata submitted by J.M. Weygand on 2022-02-11, reviewed by LFB"
          }
        },
        "Description": "THEMIS Ground All Sky Imager at Athabasca, AB, Canada. The ASI stations monitor a 170 degree field of view imaging the auroral oval at kilometer resolution. The ASI is comprised of a fisheye lens and CCD (resolution 256 x 256 pixels) in a stainless steel enclosure topped with a transparent acrylic dome. Exposure control ranges from 5 s to 1 ms although the typical data rate is one image every 3 seconds. Silicone heaters keep the instrument within the nominal temperature range. During daylight hours sun shades deploy to protect the CCD. ATHA is part of the Norstar ASI network.",
        "Acknowledgement": "We acknowledge NASA contract NAS5-02099 and V. Angelopoulos for use of data from the THEMIS Mission. Specifically: Martin Connors for building the Athabasca Station, S. Mende and E. Donovan for use of the ASI data, and the CSA for logistical support in fielding and data retrieval from the GBO stations.",
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Vassilis.Angelopoulos",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/Stephen.B.Mende",
            "Role": "CoInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/Eric.Donovan",
            "Role": "CoInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/James.M.Weygand",
            "Role": "MetadataContact"
          },
          {
            "PersonID": "spase://SMWG/Person/Lee.Frost.Bargatze",
            "Role": "MetadataContact"
          }
        ],
        "InformationURL": [
          {
            "Name": "Canadian Space Science Data Portal",
            "URL": "http://cssdp.ca/",
            "Description": "Web portal to access Canadian GBO data."
          },
          {
            "Name": "Norstar Network",
            "URL": "https://aurora.phys.ucalgary.ca/norstar/asi/asi.html",
            "Description": "Norstar web resource for ASI data and information."
          },
          {
            "Name": "THEMIS All Sky Imager Instrument",
            "URL": "http://themis.ssl.berkeley.edu/instrument_asi.shtml",
            "Description": "Brief description of ASI instrument and links to related papers."
          },
          {
            "Name": "NSSDC: THEMIS All Sky Imager",
            "URL": "https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=THEMIS-GB-01",
            "Description": "National Space Science Data Center: ASI description."
          }
        ]
      },
      "InstrumentType": "Imager",
      "InvestigationName": "THEMIS Ground All Sky Imager",
      "ObservatoryID": "spase://SMWG/Observatory/THEMIS/Ground/CANMAG/ATHA"
    }
  }
}