{
  "Spase": {
    "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
    "xmlns": "http://www.spase-group.org/data/schema",
    "xsi:schemaLocation": "http://www.spase-group.org/data/schema http://www.spase-group.org/data/schema/spase-2_0_1.xsd",
    "Version": "2.0.1",
    "Instrument": {
      "ResourceID": "spase://SMWG/Instrument/IMP8/MAG",
      "ResourceHeader": {
        "ResourceName": "IMP 8 Magnetic Field Experiment",
        "AlternateName": "IMP8 MAG",
        "ReleaseDate": "2019-05-05T12:34:56Z",
        "Description": "The magnetic field experiment on the IMP-8 spacecraft utilizes a tri-axial fluxgate (saturable inductor) magnetometer. The instrument originally had three, automatically determined, ranges, +/-12 nT, +/-36 nT, and +/-108 nT, full scale. Because of a range-change circuit failure occurring in early July 1975, the experiment was commanded into a fixed +/-36 nT range on July 11, 1975 at 12:55:09 UT and has been in that range ever since. The measurements are A-to-D converted onboard, to an 8-bit resolution, yielding +/-0.14 nT quantization sensitivity, which is larger than the intrinsic sensor noise level of 0.025 nT RMS. The data from the two-bit (per component) adaptive delta modulator, incorporated into the instrument, and applied to the intrinsic sample rate of 25 vectors/sec., was never utilized, and hence the rate of the full (8-bit) vector words, which occur every 320 ms, represents the effective sample period of the instrument. The sampling rate is synchronized to the spacecraft clock; the basic spacecraft clock frequency is 6.4 kHz. The sensor unit is mounted on the end of a boom approximately 4 m from the center of the spacecraft.",
        "Acknowledgement": "User will acknowledge the IMP-8 magnetometer team in any publication resulting from the use of these data.",
        "Contact": {
          "PersonID": "spase://SMWG/Person/Adam.Szabo",
          "Role": "PrincipalInvestigator"
        },
        "InformationURL": [
          {
            "Name": "IMP-8 Magnetometer Home Page",
            "URL": "https://spdf.gsfc.nasa.gov/pub/data/imp/imp8/documents/archived_website/project.html",
            "Description": "A web site hosting IMP-8 experiment instrument information as well as web utilities for plotting and downloading data."
          },
          {
            "Name": "NSSDC's Master Catalog",
            "URL": "https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1973-078A-01",
            "Description": "Information about the Magnetic Field Experiment experiment on the IMP 8 mission."
          }
        ]
      },
      "InstrumentType": "Magnetometer",
      "InvestigationName": "Magnetic Field Experiment",
      "ObservatoryID": "spase://SMWG/Observatory/IMP8"
    }
  }
}