{
  "startDate": "1977-10-30T03:55:57Z",
  "stopDate": "1984-01-30T23:59:44Z",
  "sampleStartDate": "1984-01-28T01:44:51Z",
  "sampleStopDate": "1984-01-28T20:48:36Z",
  "cadence": "PT49S",
  "x_cadence_fraction": 0.5313725490196078,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/isee/isee1/isee1_cdaweb/24or48s_fpe/1977/isee1_h2_fpe_19771030_v01.cdf. The most common cadence, 49000 [ms] = PT49S, occurred for 53.1373% of the 542 timesteps. ",
  "maxRequestDuration": "PT3431250S",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesI.html#ISEE1_H2_FPE",
  "contact": "S. Bame & J. Gosling @ LANL",
  "resourceID": "https://doi.org/10.48322/wvvd-c308",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/ISEE1/FPE/PT24S.html"
  },
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
      "x_description": "Time (UT)",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_EPOCH"
    },
    {
      "name": "DEN",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Proton number density",
      "fill": "-1.0E31",
      "units": "cm-3",
      "x_label": "Proton Density",
      "x_format": ".1f",
      "x_fractionDigits": "1",
      "x_cdf_FORMAT": "f6.1",
      "x_cdf_FIELDNAM": "Proton density",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "Speed",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Bulk Flow Speed (s/c coordinates). See VAR_NOTES.",
      "fill": "-1.0E31",
      "units": "km/s",
      "x_label": "Flow Speed",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F10.4",
      "x_cdf_FIELDNAM": "Bulk FLow Speed",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "Tmin",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Minimum proton temperature (Kelvin). See VAR_NOTES.",
      "fill": "-1.0E31",
      "units": "Kelvin",
      "x_label": "Min. Temp",
      "x_format": ".4e",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "E12.4",
      "x_cdf_FIELDNAM": "Minimum Temperature",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "Azimuth",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Azimuth. SEE VAR_NOTES.",
      "fill": "-1.0E31",
      "units": "deg",
      "x_label": "Azimuth",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F10.4",
      "x_cdf_FIELDNAM": "Azimuth",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "Latitude",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Flow Latitude (>0: flow towards south)",
      "fill": "-1.0E31",
      "units": "deg",
      "x_label": "Latitude",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F9.4",
      "x_cdf_FIELDNAM": "Flow Latitude",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "Tmax",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Maximum proton temperature (Kelvin). See VAR_NOTES.",
      "fill": "-1.0E31",
      "units": "Kelvin",
      "x_label": "Max. Temp",
      "x_format": ".4e",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "E12.4",
      "x_cdf_FIELDNAM": "Maximum Temperature",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "Alpha_P",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Alpha/Proton Ratio  (0.00 = no determination)",
      "fill": "-1.0E31",
      "units": null,
      "x_label": "Alpha/P Ratio",
      "x_format": ".4e",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "E12.4",
      "x_cdf_FIELDNAM": "Alpha_P",
      "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": "2026-04-12T15:11:03Z"
}