{
  "startDate": "1981-08-15T03:44:46Z",
  "stopDate": "1983-02-16T13:04:20Z",
  "sampleStartDate": "1983-02-15T01:35:32Z",
  "sampleStopDate": "1983-02-15T22:55:48Z",
  "cadence": "PT8S",
  "x_cadence_fraction": 0.9392265193370166,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/de/de2/plasma_idm/vion250ms_cdaweb/1981/de2_vion250ms_idm_19810815_v01.cdf. The most common cadence, 8000 [ms] = PT8S, occurred for 93.9227% of the 170 timesteps. ",
  "maxRequestDuration": "PT3840800S",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesD.html#DE2_VION250MS_IDM",
  "contact": "Rod Heelis @ University of Texas, Dallas",
  "resourceID": "https://doi.org/10.48322/reef-jt02",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/DE2/IDM/PT0.25S.html"
  },
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
      "x_description": "NSSDC standard-reference time value. ",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_EPOCH"
    },
    {
      "name": "scVelocity",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Spacecraft velocity (geocentric)",
      "fill": "0.0",
      "units": "m/s",
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      "x_format": ".2f",
      "x_fractionDigits": "2",
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      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
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      "type": "double",
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      "description": "Geographic Latitude in degrees",
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      "units": "deg",
      "x_label": "Geog Latitude",
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    },
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    },
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      "units": "deg",
      "x_label": "Inv Lat",
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    },
    {
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      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Magnetic Local Time",
      "fill": "0.0",
      "units": "hr",
      "x_label": "MLT",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f5.2",
      "x_cdf_FIELDNAM": "Mag. Local Time",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "alt",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Altitude in km",
      "fill": "0.0",
      "units": "km",
      "x_label": "Altitude",
      "x_format": ".2f",
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      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Altitude",
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  ],
  "x_info_author": "bw",
  "x_cdaweb_hapi_version": "20260130.0606",
  "x_info_caching": false,
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "HAPI": "3.2",
  "x_LastUpdate": "2026-04-12T15:09:50Z"
}