{
  "startDate": "1981-08-10T16:03:10Z",
  "stopDate": "1983-02-16T13:05Z",
  "sampleStartDate": "1983-02-15T01:38:20Z",
  "sampleStopDate": "1983-02-15T22:55:56Z",
  "cadence": "PT0.5S",
  "x_cadence_fraction": 0.9997017951929386,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/de/de2/electric_fields_vefi/dca500ms_vefi_cdaweb/1981/de2_dca500ms_vefi_19810810_v01.cdf. The most common cadence, 500 [ms] = PT0.5S, occurred for 99.9702% of the 16762 timesteps. ",
  "maxRequestDuration": "PT63880M",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesD.html#DE2_DCA500MS_VEFI",
  "contact": "Dr. Nelson C. Maynard @ NASA/GSFC",
  "resourceID": "https://doi.org/10.48322/0s61-a111",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/DE2/VEFI/DC/CDF/PT0.5S.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": "orbitNumber",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT4",
      "description": "Orbit Number",
      "fill": "999",
      "units": " ",
      "x_label": "orbit number",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "orbit number",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ecx",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Contact potential in Millivolts/meter ---> x componen",
      "fill": "999.99",
      "units": "mV/m",
      "x_label": "Contact pot. Ecx",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f6.2",
      "x_cdf_FIELDNAM": "Contact potential Ecx",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ecy",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "---> y component",
      "fill": "999.99",
      "units": "mV/m",
      "x_label": "Contact pot. Ecy",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f6.2",
      "x_cdf_FIELDNAM": "Contact potential Ecy",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ecz",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "---> z component",
      "fill": "999.99",
      "units": "mV/m",
      "x_label": "Contact pot. Ecz",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f6.2",
      "x_cdf_FIELDNAM": "Contact potential Ecz",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ex",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Electric field in Millivolts/meter in spacecraft coord. ---> x component",
      "fill": "9999.99",
      "units": "mV/m",
      "x_label": "Ex",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Ex",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ey",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "---> y component",
      "fill": "9999.99",
      "units": "mV/m",
      "x_label": "Ey",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Ey",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "potentialX",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Integrated potential along the x-axis in spacecraft coordinates",
      "fill": "9999.99",
      "units": "Kilovolts",
      "x_label": "Integrated Potential X",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Integrated Potential X",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ex_nonadj",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Electric field in Millivolts/meter in spacecraft coord. (non-adjusted)---> x component ",
      "fill": "9999.99",
      "units": "mV/m",
      "x_label": "Ex not adj",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Ex not adj",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ey_nonadj",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "---> y component",
      "fill": "9999.99",
      "units": "mV/m",
      "x_label": "Ey non adj",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Ey non adj",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "potentialX_nonadj",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Integrated potential along the x-axis in spacecraft coordinates (non-adjusted)",
      "fill": "9999.99",
      "units": "Kilovolts",
      "x_label": "Integrated Potential X non adj",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Integrated Potential X non adj",
      "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": "9999.99",
      "units": "km",
      "x_label": "Altitude",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Altitude",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "glat",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Geographic Latitude in degrees",
      "fill": "9999.99",
      "units": "deg",
      "x_label": "Geog Latitude",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Geographic Latitude",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "glon",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Geographic Longitude in degrees",
      "fill": "9999.99",
      "units": "deg",
      "x_label": "Geog Longitude",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Geographic Longitude",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "mlt",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Magnetic Local Time in hours",
      "fill": "9999.99",
      "units": "hr",
      "x_label": "MLT",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Mag. Local Time",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ilat",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Invariant Latitude in degrees",
      "fill": "9999.99",
      "units": "deg",
      "x_label": "Inv Lat",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Invariant Latitude",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    }
  ],
  "x_info_author": "bw",
  "x_cdaweb_hapi_version": "20260130.0606",
  "x_info_caching": false,
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "HAPI": "3.2",
  "x_LastUpdate": "2026-04-12T15:09:45Z"
}