{
  "HAPI": "3.2",
  "x_description": "The High Energy Electron Detector instruments (HEED) are located on board of both the equatorial and polar satellites. They detect electrons with energies between 0.2 MeV and 10 MeV.",
  "cadence": "PT4.000000S",
  "parameters": [
    {
      "type": "isotime",
      "units": "UTC",
      "name": "time_tags",
      "description": "Interval centred time tag rounded to nearest msecond",
      "label": "Time tags",
      "length": 24,
      "fill": null
    },
    {
      "type": "double",
      "name": "Half_interval",
      "description": "Half width of measurement interval",
      "label": "Half interval",
      "units": "s",
      "x_constant": "2",
      "fill": "-1e+31"
    },
    {
      "type": "integer",
      "name": "Status",
      "description": "HEED status",
      "label": "HEED status",
      "units": null,
      "fill": "65535",
      "size": [
        2
      ]
    },
    {
      "type": "double",
      "name": "J_hee_E1",
      "description": "HEED, High energy electron flux, for energy range 0.2 - 0.4 MeV",
      "label": "high energy electron flux",
      "units": "cm-2 sr-1 s-1",
      "fill": "-1e+31"
    },
    {
      "type": "double",
      "name": "J_hee_E2",
      "description": "HEED, High energy electron flux, for energy range 0.4 - 1.5 MeV",
      "label": "high energy electron flux",
      "units": "cm-2 sr-1 s-1",
      "fill": "-1e+31"
    },
    {
      "type": "double",
      "name": "J_hee_E3",
      "description": "HEED, High energy electron flux, for energy range 1.5 - 10.0 MeV",
      "label": "high energy electron flux",
      "units": "cm-2 sr-1 s-1",
      "fill": "-1e+31"
    }
  ],
  "startDate": "2004-07-31T00:00Z",
  "stopDate": "2008-05-20T00:00Z",
  "x_tap_url": "https://csa.esac.esa.int/csa-sl-tap/data?retrieval_type=HEADER&DATASET_ID=D2_PP_HEE&FORCEPACK=false",
  "sampleStartDate": "2008-01-23T20:00Z",
  "sampleStopDate": "2008-01-23T22:00Z",
  "x_tap_data_url": "https://csa.esac.esa.int/csa-sl-tap/data?RETRIEVAL_TYPE=product&RETRIEVAL_ACCESS=streamed&DATASET_ID=D2_PP_HEE&START_DATE=2008-01-23T20:00:00.000Z&END_DATE=2008-01-23T22:00:00.000Z",
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "x_LastUpdate": "2026-04-12T15:13:36Z"
}