{
  "HAPI": "3.2",
  "x_description": "This dataset contains reduced resolution three dimensional electron distributions (3DR) from the PEACE LEEA sensor on the Cluster C1 spacecraft. This data product is usually produced onboard and is reduced by a factor of 8 from the full resolution 3DF product, but if not telemetered it can also be generated from higher resolution data in ground processing. For all energy sweep modes (LAR/MAR/HAR) the extent of the data structure (including flyback information) will always be 16 azimuths x 6 polar angles x 16 energy bins.  For all energy sweep modes, the 12 polar anodes are summed to make 6 anode-pairs. The remaining compression is achieved in the following way: - LAR sums 4 energies to a bin and 1 (3DF) azimuth  to get a single 3DR azimuth. - MAR sums 2 energies to a bin and 2 (3DF) azimuths to get a single 3DR azimuth. - HAR does not sum energy bins but 4 (3DF) azimuths to get a single 3DR azimuth.  The effective time resolution of the data is reduced due to these summations. Where a variable higher resolution dataset was used to generate the 3DR records there may be fill values in some energy bins.",
  "cadence": "PT160.000000S",
  "parameters": [
    {
      "type": "isotime",
      "units": "UTC",
      "name": "time_tags",
      "description": "Epoch Time of PEACE data record (for one PEACE spin)",
      "label": "Data Epoch",
      "length": 24,
      "fill": null
    },
    {
      "type": "double",
      "name": "time_tags_DeltaLower",
      "description": "Actual Lower Epoch Edge = time_tags - time_tags_DeltaLower",
      "label": "Data Epoch Lower Delta",
      "units": "s",
      "fill": "-1"
    },
    {
      "type": "double",
      "name": "time_tags_DeltaUpper",
      "description": "Actual Upper Epoch Edge = time_tags + time_tags_DeltaUpper",
      "label": "Data Epoch Upper Delta",
      "units": "s",
      "fill": "-1"
    },
    {
      "type": "double",
      "name": "Angle_SR2phi",
      "description": "Phi Angle in the SR2 co-ordinate system at the center time of the spin",
      "label": "SR2 phi angle",
      "units": "Degrees",
      "fill": "-1"
    },
    {
      "type": "integer",
      "name": "Mode_SunpulseRephaseOffset",
      "description": "Delay applied to the sun reference pulse in units of spin segment clock pulses",
      "label": "Sunpulse rephase offset",
      "units": "Unitless",
      "fill": "-1"
    },
    {
      "type": "integer",
      "name": "Mode_Sensor",
      "description": "PEACE Sensor from which Data is collected (0 = LEEA, 1 = HEEA, 2 = Both)",
      "label": "Sensor (0=LEEA,1=HEEA,2=Both)",
      "units": "Unitless",
      "x_constant": "0",
      "fill": "-1"
    },
    {
      "type": "integer",
      "name": "Mode_SweepMode",
      "description": "PEACE Sweep Mode ( 0 = Off/Fixed, 1 = LAR, 2 = HAR, 3 = MAR )",
      "label": "Sweep Mode",
      "units": "Unitless",
      "fill": "-1"
    },
    {
      "type": "integer",
      "name": "Mode_Preset",
      "description": "The Energy level aimed for during flyback (always larger than Mode_EnergyLevelRange)",
      "label": "Preset level",
      "units": "Unitless",
      "fill": "-1"
    },
    {
      "type": "integer",
      "name": "Mode_EnergyLevelRange",
      "description": "Sweep Energy Level range: the subset of the 88 energy bins measured (not including flyback)",
      "label": "Sweep Energy Levels",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        2
      ]
    },
    {
      "type": "double",
      "name": "Mode_EnergyMaxMin",
      "description": "The energy range (in eV) of electrons measured in a spin, expressed as Max. then Min.",
      "label": "Energy Range (eV)",
      "units": "eV",
      "fill": "-1",
      "size": [
        2
      ]
    },
    {
      "type": "integer",
      "name": "Mode_MCPlevel",
      "description": "MCP Level: Related to sensor gain (i.e. increase level and gain increases)",
      "label": "MCP Level",
      "units": "Unitless",
      "fill": "-1"
    },
    {
      "type": "integer",
      "name": "Mode_DataOrigin",
      "description": "Data Origin (3=3DR, 10=3DFXR)",
      "label": "Data Origin",
      "units": "Unitless",
      "fill": "-1"
    },
    {
      "type": "integer",
      "name": "Mode_RealSize",
      "description": "Subset of Data variable that contains real data",
      "label": "Valid subset of 'data' array",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "integer",
      "name": "Mode_RealBinNum",
      "description": "Number of energy bins returned per sweep, not including fly-backs nor windowed-out data",
      "label": "No. energy bins returned (no fills)",
      "units": "Unitless",
      "fill": "-1"
    },
    {
      "type": "double",
      "name": "Sweep_Energy",
      "description": "The representative energy for the accumulation bin.",
      "label": "Center Energy Values",
      "units": "eV",
      "fill": "-1",
      "size": [
        16
      ]
    },
    {
      "type": "double",
      "name": "Sweep_Energy_DeltaLower",
      "description": "Actual Lower Energy Edge of bin = Sweep_Energy - Sweep_Energy_DeltaLower",
      "label": "Lower delta Energy Values",
      "units": "eV",
      "fill": "-1",
      "size": [
        16
      ]
    },
    {
      "type": "double",
      "name": "Sweep_Energy_DeltaUpper",
      "description": "Actual Upper Energy Edge of bin = Sweep_Energy + Sweep_Energy_DeltaUpper",
      "label": "Upper delta Energy Values",
      "units": "eV",
      "fill": "-1",
      "size": [
        16
      ]
    },
    {
      "type": "double",
      "name": "Sweep_Azimuth",
      "description": "Center values of Azimuth sweep that provided the data",
      "label": "Azimuth Scan Values within a spin",
      "units": "Degrees",
      "fill": "-1",
      "size": [
        16
      ]
    },
    {
      "type": "double",
      "name": "Sweep_Azimuth_DeltaLower",
      "description": "Actual Lower Azimuth Edge of sweep = Sweep_Azimuth - Sweep_Azimuth_DeltaLower",
      "label": "Lower delta Azimuth Angles",
      "units": "Degrees",
      "fill": "-1",
      "size": [
        16
      ]
    },
    {
      "type": "double",
      "name": "Sweep_Azimuth_DeltaUpper",
      "description": "Actual Upper Azimuth Edge of sweep = Sweep_Azimuth + Sweep_Azimuth_DeltaUpper",
      "label": "Upper delta Azimuth Angles",
      "units": "Degrees",
      "fill": "-1",
      "size": [
        16
      ]
    },
    {
      "type": "double",
      "name": "Data",
      "description": "C1 3DR LEEA (PSD), 6 Zone-Pairs",
      "label": "3DR",
      "units": "s^3/km^6",
      "fill": "-1",
      "bins": [
        {
          "name": "Sweep_Azimuth__C1_CP_PEA_3DRL_PSD__ref",
          "centers": "Sweep_Azimuth__C1_CP_PEA_3DRL_PSD"
        },
        {
          "name": "Sweep_Polar__C1_CP_PEA_3DRL_PSD",
          "centers": [
            165,
            135,
            105,
            75,
            45,
            15
          ],
          "units": null
        },
        {
          "name": "Sweep_Energy__C1_CP_PEA_3DRL_PSD__ref",
          "centers": "Sweep_Energy__C1_CP_PEA_3DRL_PSD"
        }
      ],
      "size": [
        16,
        6,
        16
      ]
    },
    {
      "type": "double",
      "name": "BackgroundLevel",
      "description": "Background level data for 'Data__C1_CP_PEA_3DRL_PSD'",
      "label": "3DR background level",
      "units": "s^3/km^6",
      "fill": "-1",
      "bins": [
        {
          "name": "Sweep_Azimuth__C1_CP_PEA_3DRL_PSD__ref",
          "centers": "Sweep_Azimuth__C1_CP_PEA_3DRL_PSD"
        },
        {
          "name": "Sweep_Polar__C1_CP_PEA_3DRL_PSD",
          "centers": [
            165,
            135,
            105,
            75,
            45,
            15
          ],
          "units": null
        },
        {
          "name": "Sweep_Energy__C1_CP_PEA_3DRL_PSD__ref",
          "centers": "Sweep_Energy__C1_CP_PEA_3DRL_PSD"
        }
      ],
      "size": [
        16,
        6,
        16
      ]
    },
    {
      "type": "integer",
      "name": "Status_Quality",
      "description": "C1 LEEA data quality flag",
      "label": "Data quality flag",
      "units": "Unitless",
      "fill": "-1"
    },
    {
      "type": "double",
      "name": "Status_CountStats",
      "description": "C1 LEEA Status Values for Count Statistics",
      "label": "Status Values for Count Statistics",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_ASPOC",
      "description": "C1 LEEA Status Values for ASPOC",
      "label": "Status Values for ASPOC",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_InterferenceFromEFW",
      "description": "C1 LEEA Status Values for Interference caused by EFW",
      "label": "Status Values for Interference caused by EFW",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_InterferenceFromWHI",
      "description": "C1 LEEA Status Values for Interference caused by WHI",
      "label": "Status Values for Interference caused by WHI",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_Eclipse",
      "description": "C1 LEEA Status Values for Eclipse",
      "label": "Status Values for Eclipse",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_DatastreamErrors",
      "description": "C1 LEEA Status Values for DatastreamErrors",
      "label": "Status Values for DatastreamErrors",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_CalibrationVersion",
      "description": "C1 LEEA Status Values for Calibration Version",
      "label": "Status Values for Calibration Version",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_PEACErawData",
      "description": "C1 LEEA Status Values for PEACE raw data",
      "label": "Status Values for PEACE raw data",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    }
  ],
  "startDate": "2000-11-15T00:00Z",
  "stopDate": "2024-10-01T00:00Z",
  "x_tap_url": "https://csa.esac.esa.int/csa-sl-tap/data?retrieval_type=HEADER&DATASET_ID=C1_CP_PEA_3DRL_PSD&FORCEPACK=false",
  "x_tap_data_url": "https://csa.esac.esa.int/csa-sl-tap/data?RETRIEVAL_TYPE=product&RETRIEVAL_ACCESS=streamed&DATASET_ID=C1_CP_PEA_3DRL_PSD&START_DATE=2024-10-01T00:00Z&END_DATE=2024-10-01T00:00Z",
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "x_LastUpdate": "2026-04-12T15:09:51Z"
}