{
  "startDate": "2012-09-15T00:00:03Z",
  "stopDate": "2019-10-12T23:50:15Z",
  "sampleStartDate": "2019-10-11T00:00:02Z",
  "sampleStopDate": "2019-10-11T23:59:56Z",
  "cadence": "PT6S",
  "x_cadence_fraction": 0.9774520856820744,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/rbsp/rbspa/l4/emfisis/density/2012/rbsp-a_density_emfisis-l4_20120915_v1.5.16.cdf. The most common cadence, 6000000000 [ns] = PT6S, occurred for 97.7452% of the 11271 timesteps. ",
  "maxRequestDuration": "PT71995M",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesR.html#RBSP-A_DENSITY_EMFISIS-L4",
  "contact": "Craig Kletzing @ University of Iowa",
  "resourceID": "https://doi.org/10.48322/c4ha-xj50",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/RBSP/A/EMFISIS/WFR/L4/ElectronDensity/PT0.5S.html"
  },
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 30,
      "fill": null,
      "x_description": "Default time",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_TIME_TT2000"
    },
    {
      "name": "y",
      "type": "double",
      "x_cdf_DataType": "CDF_FLOAT",
      "description": "Digitized frequency point, interpreted using value of digi_type",
      "fill": "-1.0E31",
      "units": "Hz",
      "x_label": "Y",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "F13.3",
      "x_cdf_FIELDNAM": "Y",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "bmag",
      "type": "double",
      "x_cdf_DataType": "CDF_FLOAT",
      "description": "B-Field magnitude used to infer fce",
      "fill": "-1.0E31",
      "units": "nT",
      "x_label": "B-MAG",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "F13.3",
      "x_cdf_FIELDNAM": "bmag",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "fce",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Electron cyclotron frequency (fce)",
      "fill": "-1.0E31",
      "units": "Hz",
      "x_label": "fce",
      "x_format": ".2e",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "E12.2",
      "x_cdf_FIELDNAM": "fce",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "fpe",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Electron plasma frequency (fpe)",
      "fill": "-1.0E31",
      "units": "Hz",
      "x_label": "fpe",
      "x_format": ".2e",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "E12.2",
      "x_cdf_FIELDNAM": "fpe",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "wpe_over_wce",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Ratio of electron plasma oscillation (wpe) to cyclotron gyration (wce)",
      "fill": "-1.0E31",
      "units": null,
      "x_label": "wpe/wce",
      "x_format": ".2e",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "E12.2",
      "x_cdf_FIELDNAM": "wpe/wpe",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "fuh",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Upper hybrid resonance frequency (fuh)",
      "fill": "-1.0E31",
      "units": "Hz",
      "x_label": "fuh",
      "x_format": ".2e",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "E12.2",
      "x_cdf_FIELDNAM": "fuh",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "density",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "electron density",
      "fill": "-1.0E31",
      "units": "cm**-3",
      "x_label": "density",
      "x_format": ".2e",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "E12.2",
      "x_cdf_FIELDNAM": "density",
      "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": "2026-04-12T15:12:35Z"
}