{
  "startDate": "1971-11-11T18:18:40Z",
  "stopDate": "1984-01-04T05:15:38Z",
  "sampleStartDate": "1983-02-17T02:11:34Z",
  "sampleStopDate": "1983-12-30T16:47:14Z",
  "cadence": "PT1M7S",
  "x_cadence_fraction": 0.25,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/isis/topist_ne_profile_cdf/isis2/1971/i2_neprof_topist_19711111_v01.cdf. The most common cadence, 67000 [ms] = PT1M7S, occurred for 25.0000% of the 3 timesteps. ",
  "maxRequestDuration": "PT383309818S",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesI.html#I2_NEPROF_TOPIST",
  "contact": "X. Huang and B. Reinisch @ University of MassachusettsLowell",
  "resourceID": " ",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/ISIS2/SFS/TOPIST.html"
  },
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
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      "x_cdf_DataType": "CDF_EPOCH"
    },
    {
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      "type": "double",
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      "units": "cm-3",
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      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "F11.2",
      "x_cdf_FIELDNAM": "Electron density",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
      "size": [
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      ]
    },
    {
      "name": "niLog10",
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      "x_cdf_DataType": "CDF_REAL4",
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      "units": " ",
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    },
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      "x_format": ".3f",
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      "x_label": "Lat",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "f8.3",
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    },
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      "x_cdf_DataType": "CDF_REAL4",
      "description": "Magnetic Local Time (MLT) in hours",
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      "units": "h",
      "x_label": "MLT",
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      "description": "Solar zenith angle in degree",
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      "x_cdf_FORMAT": "f8.3",
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  "x_cdaweb_hapi_version": "20260130.0606",
  "x_info_caching": false,
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    "code": 1200,
    "message": "OK"
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  "HAPI": "3.2",
  "x_LastUpdate": "2026-04-14T15:10:18Z"
}