{
  "startDate": "2004-08-12T17:44:08Z",
  "stopDate": "2015-04-30T15:08:14Z",
  "sampleStartDate": "2015-04-29T00:00Z",
  "sampleStopDate": "2015-04-29T23:59:59Z",
  "cadence": "PT0.05S",
  "x_cadence_fraction": 0.9982796136530231,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/messenger/mag/rtn_cdf/2004/messenger_mag_rtn_20040812_v01.cdf. The most common cadence, 50 [ms] = PT0.05S, occurred for 99.8280% of the 431717 timesteps. ",
  "maxRequestDuration": "PT4319950S",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesM.html#MESSENGER_MAG_RTN",
  "contact": "Prof. Sean C. Solomon @ Carnegie Institution of Washington",
  "resourceID": "https://doi.org/10.48322/9wyq-j955",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/MESSENGER/MAG/PT0.05S.html"
  },
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
      "x_description": "Number of milliseconds since the epoch",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_EPOCH"
    },
    {
      "name": "radialDistance",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL8",
      "description": "Radial distance of MESSENGER from the Sun",
      "fill": "-1.0E31",
      "units": "km",
      "x_label": "S/C Radial Dist",
      "x_format": ".7e",
      "x_fractionDigits": "7",
      "x_cdf_FORMAT": "e15.7",
      "x_cdf_FIELDNAM": "Radial Distance",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "latitude_ecliptic",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL8",
      "description": "----> North latitude from the ecliptic plane",
      "fill": "-1.0E31",
      "units": "deg",
      "x_label": "S/C Latitude",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "f12.4",
      "x_cdf_FIELDNAM": "Latitude from ecliptic",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "azimuth_ecliptic",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL8",
      "description": "----> Azimuthal angle from Earth-Sun line in ecliptic plane, positive in the direction of Earth's motion ",
      "fill": "-1.0E31",
      "units": "deg",
      "x_label": "S/c Azimuth",
      "x_format": ".2f",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "f12.2",
      "x_cdf_FIELDNAM": "Azimuth from Earth-Sun line",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "B_radial_q",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "(Good values only) B radial (Br) in RTN coordinates ",
      "fill": "-1.0E31",
      "units": "nT",
      "x_label": "Br",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "f10.3",
      "x_cdf_FIELDNAM": "Br in RTN quality",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_rtn_qflag",
      "x_cdf_COMPONENTS": [
        "B_radial",
        "Quality_Flag"
      ],
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "B_tangential_q",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "----> (Good values only) B tangential (Bt)",
      "fill": "-1.0E31",
      "units": "nT",
      "x_label": "Bt",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "f10.3",
      "x_cdf_FIELDNAM": "Bt in RTN",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_rtn_qflag",
      "x_cdf_COMPONENTS": [
        "B_tangential",
        "Quality_Flag"
      ],
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "B_normal_q",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "----> (Good values only) B normal (Bn)",
      "fill": "-1.0E31",
      "units": "nT",
      "x_label": "Bn",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "f10.3",
      "x_cdf_FIELDNAM": "Bn in RTN",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_rtn_qflag",
      "x_cdf_COMPONENTS": [
        "B_normal",
        "Quality_Flag"
      ],
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "B_radial",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "(All qualities) B radial (Br) in RTN coordinates ",
      "fill": "-1.0E31",
      "units": "nT",
      "x_label": "Br (All Quals)",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "f10.3",
      "x_cdf_FIELDNAM": "Br in RTN",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "B_tangential",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "----> (All qualities) B tangential (Bt)",
      "fill": "-1.0E31",
      "units": "nT",
      "x_label": "Bt (All Quals)",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "f10.3",
      "x_cdf_FIELDNAM": "Bt in RTN",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "B_normal",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "----> (All qualities) B normal (Bn)",
      "fill": "-1.0E31",
      "units": "nT",
      "x_label": "Bn (All Quals)",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "f10.3",
      "x_cdf_FIELDNAM": "Bn in RTN",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "Quality_Flag",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT4",
      "description": "3-digit daily quality flag (222 or 223 = good = boom deployed, sensor in shadow, any heater contamination corrected)",
      "fill": "-2147483648",
      "units": "(222/223=good)",
      "x_label": "Quality Flag",
      "x_cdf_FORMAT": "I3",
      "x_cdf_FIELDNAM": "Quality Flag",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "Epoch_cadence",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL8",
      "description": "Data Cadence",
      "fill": "-1.0E31",
      "units": "milliseconds",
      "x_label": "Data Cadence",
      "x_format": ".8e",
      "x_fractionDigits": "8",
      "x_cdf_FORMAT": "e15.8",
      "x_cdf_FIELDNAM": "Data Cadence",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "compute_cadence",
      "x_cdf_COMPONENTS": [
        "Epoch"
      ],
      "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": "2026-04-12T15:11:09Z"
}