{ "HAPI": "3.2", "x_description": "This dataset contains all available 3DX data from the PEACE LEEA sensor on the Double Star TC2 spacecraft. This dataset is NOT summed over polar angle or energy. The full 3DX MAR dataset contains FULL resolution three dimensional electron distribution. For the MAR mode the maximum extent of the data structure (including flyback information) will be 32 azimuths x 12 polar angles x 32 energy bins. The exact energy and azimuth binning is determined from the specific mode (MAR).", "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_SRPOffset", "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 = HEEA, 1 = LEEA)", "label": "Sensor (0=HEEA,1=LEEA)", "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, 4 = LAR-AEAS, 5 = HAR-AEAS, 6 = MAR-AEAS)", "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_DataOrigin", "description": "Data Origin (0=3DF)", "label": "Data Origin", "units": "Unitless", "fill": "-1" }, { "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": "double", "name": "Sweep_Energy", "description": "The representative energy for the accumulation bin.", "label": "Center Energy Values", "units": "eV", "fill": "-1", "size": [ 32 ] }, { "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": [ 32 ] }, { "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": [ 32 ] }, { "type": "double", "name": "Sweep_Azimuth", "description": "Center values of Azimuth sweep that provided the data", "label": "Azimuth Scan Values within a spin in the look direction", "units": "Degrees", "fill": "-1", "size": [ 32 ] }, { "type": "double", "name": "Data", "description": "D2 3DX HEEA (PSD), 12 Zones", "label": "3DXMAR", "units": "s^3/km^6", "fill": "-1", "bins": [ { "name": "Sweep_Azimuth__D2_CP_PEA_3DXMAR_PSD__ref", "centers": "Sweep_Azimuth__D2_CP_PEA_3DXMAR_PSD" }, { "name": "Sweep_Polar__D2_CP_PEA_3DXMAR_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__D2_CP_PEA_3DXMAR_PSD__ref", "centers": "Sweep_Energy__D2_CP_PEA_3DXMAR_PSD" } ], "size": [ 32, 12, 32 ] }, { "type": "double", "name": "BackgroundLevel", "description": "Background level data for 'Data__D2_CP_PEA_3DXMAR_PSD'", "label": "3DXMAR background level", "units": "s^3/km^6", "fill": "-1", "bins": [ { "name": "Sweep_Azimuth__D2_CP_PEA_3DXMAR_PSD__ref", "centers": "Sweep_Azimuth__D2_CP_PEA_3DXMAR_PSD" }, { "name": "Sweep_Polar__D2_CP_PEA_3DXMAR_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__D2_CP_PEA_3DXMAR_PSD__ref", "centers": "Sweep_Energy__D2_CP_PEA_3DXMAR_PSD" } ], "size": [ 32, 12, 32 ] }, { "type": "integer", "name": "Status_Quality", "description": "Data quality flag", "label": "Data quality flag", "units": "Unitless", "fill": "-1" }, { "type": "double", "name": "Status_CountStats", "description": "Count Rate Statistics", "label": "Status Values for Count Statistics", "units": "Unitless", "fill": "-1", "size": [ 3 ] }, { "type": "double", "name": "Status_ASPOC", "description": "ASPOC status", "label": "Status Values for ASPOC", "units": "Unitless", "fill": "-1", "size": [ 3 ] }, { "type": "double", "name": "Status_Eclipse", "description": "Status Eclipse", "label": "Status Values for Eclipse", "units": "Unitless", "fill": "-1", "size": [ 3 ] }, { "type": "double", "name": "Status_DatastreamErrors", "description": "DatastreamErrors", "label": "Status Values for DatastreamErrors", "units": "Unitless", "fill": "-1", "size": [ 3 ] }, { "type": "double", "name": "Status_CalibrationVersion", "description": "Calibration Version", "label": "Status Values for Calibration Version", "units": "Unitless", "fill": "-1", "size": [ 3 ] }, { "type": "double", "name": "Status_PEACErawData", "description": "PEACE raw data", "label": "Status Values for PEACE raw data", "units": "Unitless", "fill": "-1", "size": [ 3 ] }, { "type": "string", "name": "Status_DSRawDataVersion", "description": "DoubleStar mission raw dataset version", "label": "A,B,C up to G: raw dataset version, G corresponding to the latest one", "units": null, "length": 1, "fill": "-" } ], "startDate": "2004-08-13T00:00Z", "stopDate": "2008-06-26T00:00Z", "x_tap_url": "https://csa.esac.esa.int/csa-sl-tap/data?retrieval_type=HEADER&DATASET_ID=D2_CP_PEA_3DXMAR_PSD&FORCEPACK=false", "x_tap_data_url": "https://csa.esac.esa.int/csa-sl-tap/data?RETRIEVAL_TYPE=product&RETRIEVAL_ACCESS=streamed&DATASET_ID=D2_CP_PEA_3DXMAR_PSD&START_DATE=2008-06-26T00:00Z&END_DATE=2008-06-26T00:00Z", "status": { "code": 1200, "message": "OK" }, "x_LastUpdate": "2026-03-30T15:23:07Z" }