{
  "startDate": "1990-01-01T17:00Z",
  "stopDate": "1990-12-31T08:59:59Z",
  "sampleStartDate": "1990-11-01T01:59:59Z",
  "sampleStopDate": "1990-11-30T23:59:59Z",
  "cadence": "PT1H0.15S",
  "x_cadence_fraction": 0.3226837060702875,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/voyager/voyager1/magnetic_fields_cdaweb/mag_1hr/1990/voyager1_1hr_mag_19900101_v01.cdf. The most common cadence, 3600150 [ms] = PT1H0.15S, occurred for 32.2684% of the 101 timesteps. ",
  "maxRequestDuration": "PT31420799S",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesV.html#VOYAGER1_1HR_MAG",
  "contact": "Adam Szabo @ NASA GSFC",
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
      "x_description": "Time, beginning of interval",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_EPOCH"
    },
    {
      "name": "Spacecraft",
      "type": "integer",
      "x_cdf_DataType": "CDF_BYTE",
      "description": "Spacecraft id, 1 for voyager1, 2 for voyager2",
      "fill": "-128",
      "units": " ",
      "x_label": "Spacecraft",
      "x_cdf_FORMAT": "I1",
      "x_cdf_FIELDNAM": "Spacecraft",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "Decimal_Year",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL8",
      "description": "Decimal Year (90.00000 is at the start of day 001 for year 1990).",
      "units": " ",
      "x_label": "Decimal Year",
      "x_format": ".8f",
      "x_fractionDigits": "8",
      "x_cdf_FORMAT": "F12.8",
      "x_cdf_FIELDNAM": "Decimal Year",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
      "fill": null
    },
    {
      "name": "F1Mag",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Magnetic field strength from hourly average of high-resolution magnitudes",
      "fill": "999.0",
      "units": "nT",
      "x_label": "F1 Magnitude",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "F6.3",
      "x_cdf_FIELDNAM": "F1 Magnitude",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "elevation",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "The elevation angle  in heliographic (RTN) coordinates",
      "fill": "999.0",
      "units": "degrees ",
      "x_label": "elevation angle",
      "x_format": ".1f",
      "x_fractionDigits": "1",
      "x_cdf_FORMAT": "F6.1",
      "x_cdf_FIELDNAM": "elevation angle",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "azimuth",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "The azimuthal angle in heliographic (RTN) coordinates",
      "fill": "999.0",
      "units": "degrees",
      "x_label": "elevation angle",
      "x_format": ".1f",
      "x_fractionDigits": "1",
      "x_cdf_FORMAT": "F6.1",
      "x_cdf_FIELDNAM": "azimuthal angle",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "F2Mag",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Magnetic field strength from magnitude of the hourly averaged vector field",
      "fill": "999.0",
      "units": "nT",
      "x_label": "F1 Magnitude",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "F6.3",
      "x_cdf_FIELDNAM": "F2 Magnitude",
      "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": "2026-04-12T15:16:41Z"
}