{
  "startDate": "1965-12-15T09:40:15Z",
  "stopDate": "1972-07-10T22:37:22Z",
  "sampleStartDate": "1971-12-16T22:14:29Z",
  "sampleStopDate": "1971-12-16T22:20:25Z",
  "cadence": "PT30S",
  "x_cadence_fraction": 0.45403899721448465,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/alouette/crc_ne_profile_cdf/alouette2/1965/alouette2_neprof_tops_19651215_v01.cdf. The most common cadence, 30000 [ms] = PT30S, occurred for 45.4039% of the 163 timesteps.",
  "maxRequestDuration": "PT17800S",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesA.html#ALOUETTE2_NEPROF_TOPS",
  "contact": "J. E. Jackson @ Communication Research Centre (CRC), Ottawa",
  "resourceID": " ",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/Alouette2/SFS/PT32S.html"
  },
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
      "x_description": "Time",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_EPOCH"
    },
    {
      "name": "density",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Topside electon density in cm-3 from F peak to orbit altitude",
      "fill": "-9999.0",
      "units": "cm-3",
      "x_label": "Ne",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f11.2",
      "x_cdf_FIELDNAM": "Topside Ne in cm-3",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
      "size": [
        49
      ]
    },
    {
      "name": "log_density",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Logarithm (base 10) of topside Ne in cm-3",
      "fill": "-9.0",
      "units": " ",
      "x_label": "log(Ne/cm-3)",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "f7.4",
      "x_cdf_FIELDNAM": "log(Ne/cm-3)",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
      "size": [
        49
      ]
    },
    {
      "name": "tec",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Total Electron Content in TECU (=1E16 m-2)",
      "fill": "-1.0E31",
      "units": "1E16 m-2 ",
      "x_label": "TEC",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f6.2",
      "x_cdf_FIELDNAM": "TEC",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "tec_iri",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "IRI-95 value for TEC in TECU",
      "fill": "-1.0E31",
      "units": "1.E16 m-2",
      "x_label": "TEC_IRI95",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f6.2",
      "x_cdf_FIELDNAM": "TEC_IRI95",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "IRI_F2peak",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "IRI-95 value for the natural logarithm of the F2 peak density in cm-3",
      "fill": "-1.0E31",
      "units": "IRI95",
      "x_label": "ln(NmF2/cm-3)",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "f7.4",
      "x_cdf_FIELDNAM": "ln(NmF2_IRI/cm-3)",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "IRI_F2peakHeight",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "IRI-95 value for F2 peak height in km",
      "fill": "-1.0E31",
      "units": "km",
      "x_label": "hmF2_IRI95",
      "x_format": ".1f",
      "x_fractionDigits": "1",
      "x_cdf_FORMAT": "f5.1",
      "x_cdf_FIELDNAM": "hmF2 IRI-95 ",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "qualityIndex",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "Quality Index ( 0-best, 10-worst)",
      "fill": "-1",
      "units": " ",
      "x_label": "Quality Index",
      "x_cdf_FORMAT": "I2",
      "x_cdf_FIELDNAM": "Quality Index",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "lon",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Longitude in degree (-180 to 180)",
      "fill": "-1.0E31",
      "units": "degree",
      "x_label": "Longitude",
      "x_format": ".1f",
      "x_fractionDigits": "1",
      "x_cdf_FORMAT": "f7.1",
      "x_cdf_FIELDNAM": "Longitude",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "lat",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Latitude in degree",
      "fill": "-1.0E31",
      "units": "degree",
      "x_label": "Latitude",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Latitude",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "dip",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Magnetic Inclination in degree",
      "fill": "-1.0E31",
      "units": "degree",
      "x_label": "Dip",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Magnetic Inclination",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "L",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "L value",
      "fill": "-1.0E31",
      "units": " ",
      "x_label": "L value",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "L value",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "sza",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "solar zenith angle at 100 km",
      "fill": "-1.0E31",
      "units": "degree",
      "x_label": "SZA",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f7.2",
      "x_cdf_FIELDNAM": "Solar zenith angle",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "sunspotNumber",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "12-month-running mean of sunspot number",
      "fill": "-1",
      "units": " ",
      "x_label": "Rz12",
      "x_cdf_FORMAT": "I3",
      "x_cdf_FIELDNAM": "Rz12",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "IGindex",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "12-month-running mean of IG ionosonde index",
      "fill": "-1",
      "units": " ",
      "x_label": "IG-12",
      "x_cdf_FORMAT": "I3",
      "x_cdf_FIELDNAM": "IG-12 index",
      "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": "2026-04-12T15:08:20Z"
}