{
  "startDate": "1998-06-01T01:00Z",
  "stopDate": "2026-04-07T22:00Z",
  "sampleStartDate": "2026-04-06T00:00Z",
  "sampleStopDate": "2026-04-06T22:00Z",
  "cadence": "PT2H",
  "x_cadence_fraction": 1,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/gps/tec2hr_igs/1998/gps_tec2hr_igs_19980601_v01.cdf. The most common cadence, 7200000 [ms] = PT2H, occurred for all 11 timesteps. ",
  "maxRequestDuration": "PT1100H",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesG.html#GPS_TEC2HR_IGS",
  "contact": "International Global Navigation Satellite Systems (GNSS) Service Ionosphere Working Group @ ",
  "resourceID": " ",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/IGS/GPS_Receiver/TEC/PT120M.html"
  },
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
      "x_description": "NSSDC standard-reference time value. ",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_EPOCH"
    },
    {
      "name": "IGSnumStations",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "IGS, Num Stations Final-2h, Number of ground stations used, (Final product, 2 hr res., 12 day latency)",
      "fill": "-1",
      "units": " ",
      "x_label": "N_stas IGS-2h",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "# stations, IGS",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "CODnumStations",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> CODE [ Available before 10/19/2014 ] ",
      "fill": "-1",
      "units": " ",
      "x_label": "N_stas CODE-2h",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "# stations, CODE",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ESAnumStations",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> ESA",
      "fill": "-1",
      "units": " ",
      "x_label": "N_stas ESA-2h",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "# stations, ESA",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "JPLnumStations",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> JPL",
      "fill": "-1",
      "units": " ",
      "x_label": "N_stas JPL-2h",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "# stations, JPL",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "UPCnumStations",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> UPC",
      "fill": "-1",
      "units": " ",
      "x_label": "N_stas UPC-2h",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "# stations, UPC",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "IGRnumStations",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "IGS, Num stations Rapid-2h, Number of ground stations used, (Rapid product, 2 hr res., 12 hr latency)",
      "fill": "-1",
      "units": " ",
      "x_label": "N_stas IGSr-2h",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "# stations, IGSrapid",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "CORnumStations",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> CODE [ Available before 11/01/2014 ] ",
      "fill": "-1",
      "units": " ",
      "x_label": "N_stas CODEr-2h",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "# stations, CODErapid",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ESRnumStations",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> ESA",
      "fill": "-1",
      "units": " ",
      "x_label": "N_stas ESAr-2h",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "# stations, ESArap",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "JPRnumStations",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> JPL",
      "fill": "-1",
      "units": " ",
      "x_label": "N_stas JPLr-2h",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "# stations, JPLrapid",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "UPRnumStations",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> UPC",
      "fill": "-1",
      "units": " ",
      "x_label": "N_stas UPCr-2h",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "# stations, UPCrapid",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "IGSnumSatellites",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "IGS, Num satellites Final-2h, Number of GPS satellites used, (Final product, 2 hr res., 12 day latency)",
      "fill": "-1",
      "units": " ",
      "x_label": "N_sat IGS-2h",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "# satellites, IGS",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "CODnumSatellites",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> CODE [ Available before 10/19/2014 ] ",
      "fill": "-1",
      "units": " ",
      "x_label": "N_sat CODE-2h",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "# satellites, CODE",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ESAnumSatellites",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> ESA",
      "fill": "-1",
      "units": " ",
      "x_label": "N_sat ESA-2h",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "# satellites, ESA",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "JPLnumSatellites",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> JPL",
      "fill": "-1",
      "units": " ",
      "x_label": "N_sat JPL-2h",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "# satellites, JPL",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "UPCnumSatellites",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> UPC",
      "fill": "-1",
      "units": " ",
      "x_label": "N_sat JPL-2h",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "# satellites, UPC",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "IGRnumSatellites",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "IGS, Num satellites Rapid-2h, Number of GPS satellites used, (Rapid product, 2 hr res., 12 hr latency)",
      "fill": "-1",
      "units": " ",
      "x_label": "N_sat IGSr-2h",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "# satellites, IGSrapid",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "CORnumSatellites",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> CODE [ Available before 11/01/2014 ] ",
      "fill": "-1",
      "units": " ",
      "x_label": "N_sat CODEr-2h",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "# satellites, CODErapid",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "ESRnumSatellites",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> ESA",
      "fill": "-1",
      "units": " ",
      "x_label": "N_sat ESAr-2h",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "# satellites, ESArapid",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "JPRnumSatellites",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> JPL",
      "fill": "-1",
      "units": " ",
      "x_label": "N_sat JPLr-2h",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "# satellites, JPLrapid",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "UPRnumSatellites",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "-----------> UPC",
      "fill": "-1",
      "units": " ",
      "x_label": "N_sat UPCr-2h",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "# satellites, UPCrapid",
      "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": "2026-04-12T15:10:13Z"
}