{
  "startDate": "1996-01-25T02:06:42Z",
  "stopDate": "2008-04-28T18:53:05Z",
  "sampleStartDate": "2008-04-27T00:00:09Z",
  "sampleStopDate": "2008-04-27T23:59:57Z",
  "cadence": "PT55.2S",
  "x_cadence_fraction": 0.9956204379562044,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/polar/orbit/spha_k0/1996/po_k0_spha_19960125_v01.cdf. The most common cadence, 55200 [ms] = PT55.2S, occurred for 99.5620% of the 682 timesteps. ",
  "maxRequestDuration": "PT71990M",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesP.html#PO_K0_SPHA",
  "contact": " @ ",
  "resourceID": "https://doi.org/10.48322/f58f-3y50",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/POLAR/Ephemeris/KeyParameters/PT24H.html"
  },
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
      "x_description": "Spin phase EPOCH time                   ",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_EPOCH"
    },
    {
      "name": "SPIN_PHASE",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Spin phase angle                        ",
      "fill": "-1.0E31",
      "units": "rad",
      "x_label": "SP Angle",
      "x_format": ".8f",
      "x_fractionDigits": "8",
      "x_cdf_FORMAT": "F12.8",
      "x_cdf_FIELDNAM": "Spin phase angle",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "AVG_SPIN_RATE",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Average spin rate                       ",
      "fill": "-1.0E31",
      "units": "rad/sec",
      "x_label": "Avg Spn Rt",
      "x_format": ".8f",
      "x_fractionDigits": "8",
      "x_cdf_FORMAT": "F12.8",
      "x_cdf_FIELDNAM": "Average spin rate",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "STNDEV_SPIN_RATE",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Std dev of spin rate                    ",
      "fill": "-1.0E31",
      "units": "rad/sec",
      "x_label": "Stdv Spn R",
      "x_format": ".8f",
      "x_fractionDigits": "8",
      "x_cdf_FORMAT": "F12.8",
      "x_cdf_FIELDNAM": "Std dev of spin rate",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "FAULT",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT4",
      "description": "Fault level status indicator            ",
      "fill": "-2147483648",
      "units": " ",
      "x_label": "Stat Ind",
      "x_cdf_FORMAT": "I1",
      "x_cdf_FIELDNAM": "Fault level status indicator",
      "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": "2026-04-12T15:12:09Z"
}