{
  "HAPI": "3.2",
  "x_description": "This dataset contains median values of electron density and electric spectral power density measurements. The data have been calculated from measurements of density and electric spectral power density from the WHISPER experiment on the Cluster C4 spacecraft. In addition the estimate of variance is provided.",
  "cadence": "PT60.000000S",
  "parameters": [
    {
      "type": "isotime",
      "units": "UTC",
      "name": "time_tags",
      "description": "Interval centred time tag",
      "label": "Universal Time",
      "length": 24,
      "fill": null
    },
    {
      "type": "double",
      "name": "Electron_Density",
      "description": "Cx_CP_WHI_ELECTRON_DENSITY: Electron_Density",
      "label": "Electron Density",
      "units": "cm^-3",
      "fill": "-1e30"
    },
    {
      "type": "double",
      "name": "variance_Electron_Density",
      "description": "Cx_CP_WHI_ELECTRON_DENSITY: Electron_Density",
      "label": "Electron Density",
      "units": null,
      "fill": "-1e30"
    },
    {
      "type": "double",
      "name": "E_Freq1",
      "description": "Cx_CP_WHI_NATURAL: average(Electric_Spectral_Power_Density) for central Spectral_Frequencies between 2 and 10 kHz",
      "label": "E-Spectral Power Density",
      "units": "V^2 m^-2 Hz^-1",
      "fill": "-1e30"
    },
    {
      "type": "double",
      "name": "variance_E_Freq1",
      "description": "Cx_CP_WHI_NATURAL: average(Electric_Spectral_Power_Density) for central Spectral_Frequencies between 2 and 10 kHz",
      "label": "Electron Density",
      "units": null,
      "fill": "-1e30"
    },
    {
      "type": "double",
      "name": "E_Freq2",
      "description": "Cx_CP_WHI_NATURAL: average(Electric_Spectral_Power_Density) for central Spectral_Frequencies between 20 and 40 kHz",
      "label": "E-Spectral Power Density",
      "units": "V^2 m^-2 Hz^-1",
      "fill": "-1e30"
    },
    {
      "type": "double",
      "name": "variance_E_Freq2",
      "description": "Cx_CP_WHI_NATURAL: average(Electric_Spectral_Power_Density) for central Spectral_Frequencies between 20 and 40 kHz",
      "label": "Electron Density",
      "units": null,
      "fill": "-1e30"
    },
    {
      "type": "double",
      "name": "E_Freq3",
      "description": "Cx_CP_WHI_NATURAL: average(Electric_Spectral_Power_Density) for central Spectral_Frequencies between 50 and 80 kHz",
      "label": "E-Spectral Power Density",
      "units": "V^2 m^-2 Hz^-1",
      "fill": "-1e30"
    },
    {
      "type": "double",
      "name": "variance_E_Freq3",
      "description": "Cx_CP_WHI_NATURAL: average(Electric_Spectral_Power_Density) for central Spectral_Frequencies between 50 and 80 kHz",
      "label": "Electron Density",
      "units": null,
      "fill": "-1e30"
    },
    {
      "type": "integer",
      "name": "num_pts_Electron_Density",
      "description": "Number of points used to calculate 1-min median values",
      "label": "Nr of points per 1-min",
      "units": "Unitless",
      "fill": "-9"
    },
    {
      "type": "integer",
      "name": "num_pts_E_Freq1",
      "description": "Number of points used to calculate 1-min median values",
      "label": "Nr of points per 1-min",
      "units": "Unitless",
      "fill": "-9"
    },
    {
      "type": "integer",
      "name": "num_pts_E_Freq2",
      "description": "Number of points used to calculate 1-min median values",
      "label": "Nr of points per 1-min",
      "units": "Unitless",
      "fill": "-9"
    },
    {
      "type": "integer",
      "name": "num_pts_E_Freq3",
      "description": "Number of points used to calculate 1-min median values",
      "label": "Nr of points per 1-min",
      "units": "Unitless",
      "fill": "-9"
    }
  ],
  "startDate": "2000-08-22T00:00Z",
  "stopDate": "2024-10-01T00:00Z",
  "x_tap_url": "https://csa.esac.esa.int/csa-sl-tap/data?retrieval_type=HEADER&DATASET_ID=C4_CP_WHI_DM&FORCEPACK=false",
  "x_tap_data_url": "https://csa.esac.esa.int/csa-sl-tap/data?RETRIEVAL_TYPE=product&RETRIEVAL_ACCESS=streamed&DATASET_ID=C4_CP_WHI_DM&START_DATE=2024-10-01T00:00Z&END_DATE=2024-10-01T00:00Z",
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "x_LastUpdate": "2026-04-12T15:14:20Z"
}