{
  "HAPI": "3.2",
  "x_description": "This dataset contains 4-sec averages of the ExB-drift velocity in ISR2, using 3-dimensional EFW electric field data from C2_CP_EFW_L3_E3D_INERT and FGM magnetic field data from C2_CP_FGM_5VPS that are used to calculate the 4-sec average magnetic field vector for the time stamps of electric field data. When the spin-axis electric field component  has a FILLVAL (i.e. it cannot be determined), then the x- and y components of this dataset have FILLVAL.  Detailed quality information is provided as a 16 bit set of flags in the parameter E_bitmask__C2_CP_EFW_L3_V3D_INERT. The meaning of the bits is as follows (LSB numbering starting at 0): Bit  0: Reset. Bit  1: Bad bias. Bit  2: Probe latchup. Bit  3: Low density saturation (-68V). Bit  4: Sweep (collection and dump). Bit  5: Burst dump. Bit  6: Non-standard operations (NS_OPS). Bit  7: Manual flag. Bit  8: Not used. Bit  9: Not used. Bit 10: Solar wind wake correction applied. Bit 11: Lobe wake. Bit 12: Plasmaspheric wake. Bit 13: Whisper operating. Bit 14: Saturation due to high bias current. Bit 15: Bias current DAC not responding correctly. Bit 16: Saturation due to probe shadow.",
  "cadence": "PT4.000000S",
  "parameters": [
    {
      "type": "isotime",
      "units": "UTC",
      "name": "time_tags",
      "label": "Universal Time",
      "fill": null
    },
    {
      "type": "double",
      "name": "v_drift_ISR2",
      "description": "Velocity",
      "label": "Velocity",
      "units": "km/s",
      "fill": "-1e+31",
      "size": [
        3
      ]
    },
    {
      "type": "double",
      "name": "delta_v_ISR2",
      "description": "Error of velocityISR2",
      "label": "Error of velocityISR2",
      "units": "km/s",
      "fill": "-1e+31",
      "size": [
        3
      ]
    },
    {
      "type": "integer",
      "name": "E_bitmask",
      "description": "Electric field measurement quality bitmask",
      "label": "Electric field measurement quality bitmask",
      "units": null,
      "fill": "0"
    },
    {
      "type": "integer",
      "name": "E_quality",
      "description": "Electric field measurement quality flag (4=best)",
      "label": "Electric field measurement quality flag (4=best)",
      "units": null,
      "fill": "0"
    },
    {
      "type": "double",
      "name": "E_sigma",
      "description": "Electric field standard deviation",
      "label": "Electric field standard deviation",
      "units": "mV/m",
      "fill": "-1000000000.000"
    }
  ],
  "startDate": "2000-12-02T00:00Z",
  "stopDate": "2022-09-01T00:00Z",
  "x_tap_url": "https://csa.esac.esa.int/csa-sl-tap/data?retrieval_type=HEADER&DATASET_ID=C2_CP_EFW_L3_V3D_INERT&FORCEPACK=false",
  "sampleStartDate": "2021-06-02T23:00Z",
  "sampleStopDate": "2021-06-03T00:00Z",
  "x_tap_data_url": "https://csa.esac.esa.int/csa-sl-tap/data?RETRIEVAL_TYPE=product&RETRIEVAL_ACCESS=streamed&DATASET_ID=C2_CP_EFW_L3_V3D_INERT&START_DATE=2021-06-02T23:00:00.000Z&END_DATE=2021-06-03T00:00:00.000Z",
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "x_LastUpdate": "2026-04-12T15:08:58Z"
}