{
  "HAPI": "3.2",
  "x_description": "This dataset contains the onboard selected pitch angle distribution (PAD) data from the PEACE HEEA sensor on the Cluster C3 spacecraft during LAR sweep mode only. Part of the pitch angle distribution is returned during the first half of a spin and the rest is returned during the second half. The magnetic field direction used to select pitch angles is provided by FGM over the Inter-Experimental Link (IEL).  The combined data from the first and second half-spins provides the full 0 to 180 degree Pitch Angle coverage.  For the LAR mode the extent of the data structure (including flyback information) will be 2 azimuths x 12 polar angles x 64 energy bins. Only every other energy bin is valid in LAR mode to give 30 non-fill-value energy bins per azimuth. Odd or even bins are returned on alternate spins.  NOTE: The onboard pitch angle selection can be unreliable in some situations, including a rapidly changing magnetic field.  Please see supporting PEACE documentation.",
  "cadence": "PT4.000000S",
  "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": "1",
      "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 (4=PAD)",
      "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": [
        64
      ]
    },
    {
      "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": [
        64
      ]
    },
    {
      "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": [
        64
      ]
    },
    {
      "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": [
        2
      ]
    },
    {
      "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": [
        2
      ]
    },
    {
      "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": [
        2
      ]
    },
    {
      "type": "double",
      "name": "Data",
      "description": "C3 PADLAR HEEA (PSD), 12 Zones",
      "label": "PADLAR",
      "units": "s^3/km^6",
      "fill": "-1",
      "bins": [
        {
          "name": "Sweep_Azimuth__C3_CP_PEA_PADLARH_PSD__ref",
          "centers": "Sweep_Azimuth__C3_CP_PEA_PADLARH_PSD"
        },
        {
          "name": "Sweep_Polar__C3_CP_PEA_PADLARH_PSD",
          "centers": [
            172.5,
            157.5,
            142.5,
            127.5,
            112.5,
            97.5,
            82.5,
            67.5,
            52.5,
            37.5,
            22.5,
            7.5
          ],
          "units": null
        },
        {
          "name": "Sweep_Energy__C3_CP_PEA_PADLARH_PSD__ref",
          "centers": "Sweep_Energy__C3_CP_PEA_PADLARH_PSD"
        }
      ],
      "size": [
        2,
        12,
        64
      ]
    },
    {
      "type": "double",
      "name": "BackgroundLevel",
      "description": "Background level data for 'Data__C3_CP_PEA_PADLARH_PSD'",
      "label": "PADLAR background level",
      "units": "s^3/km^6",
      "fill": "-1",
      "bins": [
        {
          "name": "Sweep_Azimuth__C3_CP_PEA_PADLARH_PSD__ref",
          "centers": "Sweep_Azimuth__C3_CP_PEA_PADLARH_PSD"
        },
        {
          "name": "Sweep_Polar__C3_CP_PEA_PADLARH_PSD",
          "centers": [
            172.5,
            157.5,
            142.5,
            127.5,
            112.5,
            97.5,
            82.5,
            67.5,
            52.5,
            37.5,
            22.5,
            7.5
          ],
          "units": null
        },
        {
          "name": "Sweep_Energy__C3_CP_PEA_PADLARH_PSD__ref",
          "centers": "Sweep_Energy__C3_CP_PEA_PADLARH_PSD"
        }
      ],
      "size": [
        2,
        12,
        64
      ]
    },
    {
      "type": "integer",
      "name": "Status_Quality",
      "description": "C3 HEEA data quality flag",
      "label": "Data quality flag",
      "units": "Unitless",
      "fill": "-1"
    },
    {
      "type": "double",
      "name": "Status_CountStats",
      "description": "C3 HEEA Status Values for Count Statistics",
      "label": "Status Values for Count Statistics",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_ASPOC",
      "description": "C3 HEEA Status Values for ASPOC",
      "label": "Status Values for ASPOC",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_InterferenceFromEFW",
      "description": "C3 HEEA 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": "C3 HEEA 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": "C3 HEEA Status Values for Eclipse",
      "label": "Status Values for Eclipse",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_DatastreamErrors",
      "description": "C3 HEEA Status Values for DatastreamErrors",
      "label": "Status Values for DatastreamErrors",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_CalibrationVersion",
      "description": "C3 HEEA Status Values for Calibration Version",
      "label": "Status Values for Calibration Version",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_PEACErawData",
      "description": "C3 HEEA Status Values for PEACE raw data",
      "label": "Status Values for PEACE raw data",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "Status_PADSelectionQuality",
      "description": "C3 HEEA Status Values for PAD Selection Quality",
      "label": "Status Values for PAD Selection Quality",
      "units": "Unitless",
      "fill": "-1",
      "size": [
        3
      ]
    }
  ],
  "startDate": "2000-09-13T00:00Z",
  "stopDate": "2024-10-01T00:00Z",
  "x_tap_url": "https://csa.esac.esa.int/csa-sl-tap/data?retrieval_type=HEADER&DATASET_ID=C3_CP_PEA_PADLARH_PSD&FORCEPACK=false",
  "x_tap_data_url": "https://csa.esac.esa.int/csa-sl-tap/data?RETRIEVAL_TYPE=product&RETRIEVAL_ACCESS=streamed&DATASET_ID=C3_CP_PEA_PADLARH_PSD&START_DATE=2024-10-01T00:00Z&END_DATE=2024-10-01T00:00Z",
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "x_LastUpdate": "2026-04-12T15:08:17Z"
}