{
  "startDate": "2007-03-07T00:00Z",
  "stopDate": "2026-04-09T00:00Z",
  "sampleStartDate": "2026-04-07T00:00Z",
  "sampleStopDate": "2026-04-08T00:00Z",
  "maxRequestDuration": "P50D",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesT.html#THB_L2_ESA",
  "contact": "V. Angelopoulos, C.W. Carlson & J. McFadden @ UCB, NASA NAS5-02099",
  "resourceID": "https://doi.org/10.48322/7g3t-f085",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/THEMIS/B/ESA/PT3S.html"
  },
  "parameters": [
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      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
      "x_description": "thb_peir_epoch",
      "x_cdf_NAME": "thb_peir_epoch",
      "x_cdf_DataType": "CDF_EPOCH",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "comp_themis_epoch",
      "x_cdf_COMPONENTS": [
        "thb_peir_epoch0",
        "thb_peir_time"
      ]
    },
    {
      "name": "thb_peir_data_quality",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT4",
      "description": "ESA Reduced Mode, Ion Moment Data Quality (0: Good data, non-zero: Data may not be suitable, see: http://themis.ssl.berkeley.edu/esa_flag.shtml.) ",
      "fill": "-2147483648",
      "units": null,
      "x_label": "Data_Quality_Flag_ion Rdcd ESA-B",
      "x_cdf_FORMAT": "i2",
      "x_cdf_FIELDNAM": "Data_Quality_Flag_ion Rdcd ESA-B",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch"
    },
    {
      "name": "thb_peir_densityQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "(Good data only) ESA Reduced (Low Angular Res., 3-s Time Res.) Mode, Ion Density",
      "fill": "NaN",
      "units": "cm^-3",
      "x_label": "N_ion Rdcd ESA-B",
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "N_ion Rdcd ESA-B",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
        "thb_peir_density",
        "thb_peir_data_quality"
      ],
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch"
    },
    {
      "name": "thb_peir_avgtempQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Average Temperature ",
      "fill": "NaN",
      "units": "eV",
      "x_label": "T_ion Rdcd ESA-B",
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "T_ion Rdcd ESA-B",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
        "thb_peir_avgtemp",
        "thb_peir_data_quality"
      ],
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch"
    },
    {
      "name": "thb_peir_vthermalQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Thermal Velocity ",
      "fill": "NaN",
      "units": "km/s",
      "x_label": "Vth_ion Rdcd ESA-B",
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Vth_ion Rdcd ESA-B",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
        "thb_peir_vthermal",
        "thb_peir_data_quality"
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      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch"
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    {
      "name": "thb_peir_sc_potQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----SC Potential (Same time array as Reduced Ion ESA data) ",
      "fill": "NaN",
      "units": "V",
      "x_label": "Scpot_ion Rdcd ESA-B",
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Scpot_ion Rdcd ESA-B",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
        "thb_peir_sc_pot",
        "thb_peir_data_quality"
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      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch"
    },
    {
      "name": "thb_peir_en_efluxQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Energy Flux spectrogram ",
      "fill": "NaN",
      "units": "eV/(cm^2-s-sr-eV)",
      "x_label": "Eflux_ion Rdcd ESA-B",
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Eflux_ion Rdcd ESA-B",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
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        "thb_peir_data_quality"
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      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch",
      "size": [
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    },
    {
      "name": "thb_peir_t3Q",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Diagonalized Temperature (Tprp1, Tprp2, Tpar) ",
      "fill": "NaN",
      "units": "eV",
      "x_label": [
        "Tprp1_ion Rdcd ESA-B",
        "Tprp2_ion Rdcd ESA-B",
        "Tpar_ion Rdcd ESA-B"
      ],
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Ion Diagonalized Temperature (Tprp1, Tprp2, Tpar)",
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      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
        "thb_peir_t3",
        "thb_peir_data_quality"
      ],
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch",
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          "description": "thb_peir_t3_compno",
          "centers": [
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            2,
            3
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          "x_label": [
            "Tprp1_ion Rdcd ESA-B",
            "Tprp2_ion Rdcd ESA-B",
            "Tpar_ion Rdcd ESA-B"
          ],
          "units": null
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      ]
    },
    {
      "name": "thb_peir_magt3Q",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Temperature, Field Aligned (Tprp1FA, Tprp2FA, TparFA) ",
      "fill": "NaN",
      "units": "eV",
      "x_label": [
        "Tprp1_ion FA Rdcd ESA-B",
        "Tprp2_ion FA Rdcd ESA-B",
        "Tpar_ion FA Rdcd ESA-B"
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      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
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        "thb_peir_data_quality"
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      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch",
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          "description": "thb_peir_magt3_compno",
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            3
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          "x_label": [
            "Tprp1_ion FA Rdcd ESA-B",
            "Tprp2_ion FA Rdcd ESA-B",
            "Tpar_ion FA Rdcd ESA-B"
          ],
          "units": null
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      ]
    },
    {
      "name": "thb_peir_ptensQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Pressure Tensor ",
      "fill": "NaN",
      "units": "eV/cm^3",
      "x_label": [
        "Pxx_ion Rdcd ESA-B",
        "Pyy_ion Rdcd ESA-B",
        "Pzz_ion Rdcd ESA-B",
        "Pxy_ion Rdcd ESA-B",
        "Pxz_ion Rdcd ESA-B",
        "Pyz_ion Rdcd ESA-B"
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      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Ion Pressure Tensor",
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      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
        "thb_peir_ptens",
        "thb_peir_data_quality"
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      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch",
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            4,
            5,
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          "x_label": [
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            "Pyy_ion Rdcd ESA-B",
            "Pzz_ion Rdcd ESA-B",
            "Pxy_ion Rdcd ESA-B",
            "Pxz_ion Rdcd ESA-B",
            "Pyz_ion Rdcd ESA-B"
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          "units": null
        }
      ]
    },
    {
      "name": "thb_peir_mftensQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Momentum Flux Tensor ",
      "fill": "NaN",
      "units": "eV/cm^3",
      "x_label": [
        "MFxx_ion Rdcd ESA-B",
        "MFyy_ion Rdcd ESA-B",
        "MFzz_ion Rdcd ESA-B",
        "MFxy_ion Rdcd ESA-B",
        "MFxz_ion Rdcd ESA-B",
        "MFyz_ion Rdcd ESA-B"
      ],
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Ion Momentum Flux Tensor",
      "x_cdf_VIRTUAL": "true",
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        "thb_peir_data_quality"
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            3,
            4,
            5,
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            "MFyy_ion Rdcd ESA-B",
            "MFzz_ion Rdcd ESA-B",
            "MFxy_ion Rdcd ESA-B",
            "MFxz_ion Rdcd ESA-B",
            "MFyz_ion Rdcd ESA-B"
          ],
          "units": null
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      ]
    },
    {
      "name": "thb_peir_fluxQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Particle Flux Vector ",
      "fill": "NaN",
      "units": "#/(cm^2-s)",
      "x_label": [
        "Fx_ion DSL Rdcd ESA-B",
        "Fy_ion DSL Rdcd ESA-B",
        "Fz_ion DSL Rdcd ESA-B"
      ],
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Ion Particle Flux Vector",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
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        "thb_peir_data_quality"
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      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch",
      "size": [
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          "description": "thb_peir_flux_compno",
          "centers": [
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            2,
            3
          ],
          "x_label": [
            "Fx_ion DSL Rdcd ESA-B",
            "Fy_ion DSL Rdcd ESA-B",
            "Fz_ion DSL Rdcd ESA-B"
          ],
          "units": null
        }
      ]
    },
    {
      "name": "thb_peir_symmQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Symmetry Vector (direction of pressure tensor symmetry (DSL)) ",
      "fill": "NaN",
      "units": "None",
      "x_label": [
        "Symm_xi Rdcd ESA-B",
        "Symm_yi Rdcd ESA-B",
        "Symm_zi Rdcd ESA-B"
      ],
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Ion Symmetry Vector (direction of pressure tensor symmetry (DSL)) ",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_esa_qflag",
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        "thb_peir_symm",
        "thb_peir_data_quality"
      ],
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch",
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            2,
            3
          ],
          "x_label": [
            "Symm_xi Rdcd ESA-B",
            "Symm_yi Rdcd ESA-B",
            "Symm_zi Rdcd ESA-B"
          ],
          "units": null
        }
      ]
    },
    {
      "name": "thb_peir_symm_angQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Symmetry Angle (between symmetry direction and B) ",
      "fill": "NaN",
      "units": "degrees",
      "x_label": "symm_ang_ion Rdcd ESA-B",
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Ion Symmetry Angle (between symmetry direction and B)",
      "x_cdf_VIRTUAL": "true",
      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
        "thb_peir_symm_ang",
        "thb_peir_data_quality"
      ],
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch"
    },
    {
      "name": "thb_peir_magfQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Magnetic Field Vector in DSL (Same time array as Reduced Ion ESA data) ",
      "fill": "NaN",
      "units": "nT",
      "x_label": [
        "Bx_ion DSL Rdcd ESA-B",
        "By_ion DSL Rdcd ESA-B",
        "Bz_ion DSL Rdcd ESA-B"
      ],
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      "x_cdf_FIELDNAM": "Magnetic Field Vector in DSL (Same time array as Reduced Ion ESA data)",
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      "x_cdf_FUNCT": "apply_esa_qflag",
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        "thb_peir_magf",
        "thb_peir_data_quality"
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            "By_ion DSL Rdcd ESA-B",
            "Bz_ion DSL Rdcd ESA-B"
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      ]
    },
    {
      "name": "thb_peir_velocity_dslQ",
      "type": "double",
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      "description": "-----Ion Velocity Vector in DSL",
      "fill": "NaN",
      "units": "km/s",
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        "Vx_ion DSL Rdcd ESA-B",
        "Vy_ion DSL Rdcd ESA-B",
        "Vz_ion DSL Rdcd ESA-B"
      ],
      "x_format": ".6e",
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      "x_cdf_FIELDNAM": "Ion Velocity Vector in DSL",
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      "x_cdf_FUNCT": "apply_esa_qflag",
      "x_cdf_COMPONENTS": [
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        "thb_peir_data_quality"
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      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch",
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          "x_label": [
            "Vx_ion DSL Rdcd ESA-B",
            "Vy_ion DSL Rdcd ESA-B",
            "Vz_ion DSL Rdcd ESA-B"
          ],
          "units": null
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      ]
    },
    {
      "name": "thb_peir_velocity_gseQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Velocity Vector in GSE ",
      "fill": "NaN",
      "units": "km/s",
      "x_label": [
        "Vx_ion GSE Rdcd ESA-B",
        "Vy_ion GSE Rdcd ESA-B",
        "Vz_ion GSE Rdcd ESA-B"
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      "x_cdf_FIELDNAM": "Ion Velocity Vector in GSE",
      "x_cdf_VIRTUAL": "true",
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        "thb_peir_data_quality"
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          "x_label": [
            "Vx_ion GSE Rdcd ESA-B",
            "Vy_ion GSE Rdcd ESA-B",
            "Vz_ion GSE Rdcd ESA-B"
          ],
          "units": null
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      ]
    },
    {
      "name": "thb_peir_velocity_gsmQ",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Velocity Vector in GSM ",
      "fill": "NaN",
      "units": "km/s",
      "x_label": [
        "Vx_ion GSM Rdcd ESA-B",
        "Vy_ion GSM Rdcd ESA-B",
        "Vz_ion GSM Rdcd ESA-B"
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      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Ion Velocity Vector in GSM",
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        "thb_peir_data_quality"
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          "x_label": [
            "Vx_ion GSM Rdcd ESA-B",
            "Vy_ion GSM Rdcd ESA-B",
            "Vz_ion GSM Rdcd ESA-B"
          ],
          "units": null
        }
      ]
    },
    {
      "name": "thb_peir_density",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "(All qualities data) ESA Reduced (Low Angular Res., 3-s Time Res.) Mode, Ion Density",
      "fill": "NaN",
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    },
    {
      "name": "thb_peir_avgtemp",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Average Temperature",
      "fill": "NaN",
      "units": "eV (All Qs)",
      "x_label": "T_ion Rdcd ESA-B",
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "T_ion Rdcd ESA-B(all qualities)",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
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    },
    {
      "name": "thb_peir_vthermal",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Thermal Velocity",
      "fill": "NaN",
      "units": "km/s (All Qs)",
      "x_label": "Vth_ion Rdcd ESA-B",
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      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Vth_ion Rdcd ESA-B(all qualities)",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "thb_peir_epoch"
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    {
      "name": "thb_peir_sc_pot",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----SC Potential (Same time array as Reduced Ion ESA data)",
      "fill": "NaN",
      "units": "V (All Qs)",
      "x_label": "Scpot_ion Rdcd ESA-B",
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Scpot_ion Rdcd ESA-B(all qualities)",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
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    {
      "name": "thb_peir_en_eflux",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Energy Flux spectrogram",
      "fill": "NaN",
      "units": "eV/(cm^2-s-sr-eV) (All Qs)",
      "x_label": "Eflux_ion Rdcd ESA-B",
      "x_format": ".6e",
      "x_fractionDigits": "6",
      "x_cdf_FORMAT": "E13.6",
      "x_cdf_FIELDNAM": "Eflux_ion Rdcd ESA-B(all qualities)",
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      "name": "thb_peir_t3",
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      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Diagonalized Temperature (Tprp1, Tprp2, Tpar)",
      "fill": "NaN",
      "units": "eV (All Qs)",
      "x_label": [
        "Tprp1_ion Rdcd ESA-B",
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      "type": "double",
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      "description": "-----Ion Pressure Tensor",
      "fill": "NaN",
      "units": "eV/cm^3 (All Qs)",
      "x_label": [
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        "Pyy_ion Rdcd ESA-B",
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      ]
    },
    {
      "name": "thb_peir_mftens",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "-----Ion Momentum Flux Tensor",
      "fill": "NaN",
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        "MFyy_ion Rdcd ESA-B",
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      "units": "degrees (All Qs)",
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      "description": "-----Magnetic Field Vector in DSL (Same time array as Reduced Ion ESA data)",
      "fill": "NaN",
      "units": "nT (All Qs)",
      "x_label": [
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        "Bz_ion DSL Rdcd ESA-B"
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      "type": "double",
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      "description": "-----Ion Velocity Vector in DSL",
      "fill": "NaN",
      "units": "km/s (All Qs)",
      "x_label": [
        "Vx_ion DSL Rdcd ESA-B",
        "Vy_ion DSL Rdcd ESA-B",
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      ]
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      "description": "-----Ion Velocity Vector in GSE",
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        "Vx_ion GSE Rdcd ESA-B",
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      "description": "-----Ion Velocity Vector in GSM",
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  "x_cdaweb_hapi_version": "20260130.0606",
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}