{
  "HAPI": "3.2",
  "x_description": "High time resolution calibrated waveform data sampled in one of 3 frequency bands in the range 0-577 kHz along one axis using either an electric field antenna or a magnetic search coil sensor.  The dataset also includes instrument mode, data quality and the angles required to orient the measurement with respect to the magnetic field and to the GSE coordinate system. ... CALIBRATION: ... The procedure used in computing the calibrated Electric Field and Magnetic Field values found in this file can be obtained from the document CAA-EST-CR-WBD (Calibration Report of the WBD Measurements in the Cluster Science Archive). In the same document are decribed the procedures to calculate power spectra and to invert the calibration to obtain raw instrument data. ... Bandwidth   Sample Rate ---------   ------------ 0.1 - 9.5 kHz      27.443 kHz 0.1 - 19 kHz       54.886 kHz 0.7 - 77 kHz      219.544 kHz ... COORDINATE SYSTEM USED: ... One axis measurements made in the Antenna Coordinate System, i.e., if electric field measurement, it will either be Ey or Ez, both of which are in the spin plane of the spacecraft, and if magnetic field measurement, it will either be Bx, along the spin axis, or By, in spin plane.",
  "cadence": "PT0.000035S",
  "parameters": [
    {
      "type": "isotime",
      "units": "UTC",
      "name": "time_tags",
      "description": "UT Time, time of WBD data point",
      "label": "Universal Time",
      "length": 29,
      "fill": null
    },
    {
      "type": "double",
      "name": "Bandwidth",
      "description": "Frequency Bandwidth: 9.5 kHz, 19 kHz, 77 kHz",
      "label": "Frequency Bandwidth",
      "units": "kHz",
      "fill": "-1.0e+31"
    },
    {
      "type": "double",
      "name": "Translation",
      "description": "Base freq. of freq. bandwidth (0.0, 125.454, 250.908, and 501.816 kHz)",
      "label": "Frequency Shift",
      "units": "kHz",
      "fill": "-1.0e+31"
    },
    {
      "type": "integer",
      "name": "Resolution",
      "description": "Number of bits used when digitizing waveform (8-bit, 4-bit, or 1-bit)",
      "label": "Digital Resolution",
      "units": "bits",
      "fill": "-128"
    },
    {
      "type": "integer",
      "name": "Antenna",
      "description": "Antenna (0=Ez, 1=Bx, 2=By, 3=Ey)",
      "label": "Antenna",
      "units": null,
      "fill": "-128"
    },
    {
      "type": "integer",
      "name": "Gain",
      "description": "Gain state of WBD instrument",
      "label": "Gain",
      "units": "dB",
      "fill": "-128"
    },
    {
      "type": "double",
      "name": "Ant_B_Field_Angle",
      "description": "Total angle between antenna used for WBD measurement and measured B field direction",
      "label": "Antenna-B Field Total Angle",
      "units": "degrees",
      "fill": "-1.0E+31"
    },
    {
      "type": "double",
      "name": "Ant_Xgse_Angle",
      "description": "Total angle between the Xgse axis and the antenna direction",
      "label": "Antenna Xgse Angle",
      "units": "degrees",
      "fill": "-1.0E+31"
    },
    {
      "type": "double",
      "name": "Ant_YZgse_Plane_Angle",
      "description": "Total angle between Ygse axis and the projection of the antenna direction in the Ygse-Zgse plane",
      "label": "Antenna YZgse-Plane Angle",
      "units": "degrees",
      "fill": "-1.0e31"
    },
    {
      "type": "double",
      "name": "DC_Offset",
      "description": "DC Offset used when converting from raw digital values to calibrated data",
      "label": "DC Offset",
      "units": null,
      "fill": "-1.0e31"
    },
    {
      "type": "double",
      "name": "E",
      "description": "Calibrated AC WBD Electric Field",
      "label": "WBD AC Electric Field",
      "units": "mV/m",
      "fill": "-1.0e31"
    },
    {
      "type": "double",
      "name": "B",
      "description": "Calibrated AC WBD Magnetic Field",
      "label": "WBD AC Magnetic Field",
      "units": "nT",
      "fill": "-1.0e31"
    },
    {
      "type": "integer",
      "name": "Quality",
      "description": "Data Quality: 0 = OK, 1 = clipped or questionable, 2 = bad data point.",
      "label": "Data Quality",
      "units": null,
      "fill": "-128"
    }
  ],
  "startDate": "2000-11-27T12:00Z",
  "stopDate": "2024-09-29T00:00Z",
  "x_tap_url": "https://csa.esac.esa.int/csa-sl-tap/data?retrieval_type=HEADER&DATASET_ID=C1_CP_WBD_WAVEFORM&FORCEPACK=false",
  "sampleStartDate": "2021-12-27T12:00Z",
  "sampleStopDate": "2021-12-27T18:00Z",
  "x_tap_data_url": "https://csa.esac.esa.int/csa-sl-tap/data?RETRIEVAL_TYPE=product&RETRIEVAL_ACCESS=streamed&DATASET_ID=C1_CP_WBD_WAVEFORM&START_DATE=2021-12-27T12:00:00.000Z&END_DATE=2021-12-27T18:00:00.000Z",
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "x_LastUpdate": "2026-04-12T15:09:07Z"
}