{
  "HAPI": "3.2",
  "x_description": "This dataset contains plasma frequencies from Whisper on spacecraft 4",
  "cadence": "PT52.000000S",
  "parameters": [
    {
      "type": "isotime",
      "units": "UTC",
      "name": "time_tags",
      "description": "Interval centred time tag",
      "label": "Universal Time",
      "length": 24,
      "fill": null
    },
    {
      "type": "double",
      "name": "Delta_Time",
      "description": "Half of the number of seconds corresponding the uncertainty of the time tags",
      "label": "Delta",
      "units": "s",
      "fill": "-1"
    },
    {
      "type": "string",
      "name": "Spectrum_Type",
      "description": "spectrum type (A: Active; N:Natural) from which the electron density is derived",
      "label": "Spectrum Type",
      "units": null,
      "length": 1,
      "fill": "-"
    },
    {
      "type": "string",
      "name": "Computation_Method",
      "description": "method used for computation of electron density - see CAA-EST-CR-WHI",
      "label": "Computation Method",
      "units": null,
      "length": 2,
      "fill": "XX"
    },
    {
      "type": "string",
      "name": "External_Data",
      "description": "use of external data (-: none;  E: EFW s/c potential)",
      "label": "External Data",
      "units": null,
      "length": 1,
      "fill": "-"
    },
    {
      "type": "string",
      "name": "Human_Validation",
      "description": "human validation (V:viewed and accepted; C:corrected manually; -:none)",
      "label": "Human Validation",
      "units": null,
      "length": 1,
      "fill": "-"
    },
    {
      "type": "double",
      "name": "Electron_Density",
      "description": "Electron Density",
      "label": "Electron Density",
      "units": "cm^-3",
      "fill": "-1"
    },
    {
      "type": "double",
      "name": "Uncertainty",
      "description": "Uncertainty of the computed electron density",
      "label": "Uncertainty",
      "units": "cm^-3",
      "fill": "-1"
    },
    {
      "type": "double",
      "name": "Contrast",
      "description": "Local contrast for the computed density - see CAA-EST-CR-WHI",
      "label": "Contrast",
      "units": null,
      "fill": "-1"
    },
    {
      "type": "integer",
      "name": "Quality",
      "description": "quality flag (3= semi-automatic derivation, 4= manual derivation)",
      "label": "Quality",
      "units": null,
      "fill": "-1"
    }
  ],
  "startDate": "2001-02-02T00:00Z",
  "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_ELECTRON_DENSITY&FORCEPACK=false",
  "sampleStartDate": "2022-06-23T09:00Z",
  "sampleStopDate": "2022-06-23T10:00Z",
  "x_tap_data_url": "https://csa.esac.esa.int/csa-sl-tap/data?RETRIEVAL_TYPE=product&RETRIEVAL_ACCESS=streamed&DATASET_ID=C4_CP_WHI_ELECTRON_DENSITY&START_DATE=2022-06-23T09:00:00.000Z&END_DATE=2022-06-23T10:00:00.000Z",
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "x_LastUpdate": "2026-04-12T15:07:19Z"
}