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  "stopDate": "2026-01-19T23:59:58Z",
  "sampleStartDate": "2026-01-18T00:00:02Z",
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            236.795,
            273.48,
            315.6,
            363.155,
            418.86,
            484.075,
            558.805,
            613.155
          ],
          "x_label": "Diffential energy channel centroid bottom sensor 8",
          "x_labelComponents": [
            [
              "CH_1",
              "CH_2",
              "CH_3",
              "CH_4",
              "CH_5",
              "CH_6",
              "CH_7",
              "CH_8",
              "CH_9",
              "CH_10",
              "CH_11",
              "CH_12",
              "CH_13",
              "CH_14",
              "CH_15",
              "CH_16"
            ]
          ],
          "units": "keV"
        }
      ]
    },
    {
      "name": "mms2_epd_feeps_srvy_l2_ion_pitch_angle",
      "type": "double",
      "x_cdf_DataType": "CDF_FLOAT",
      "description": "The angle formed by the normal vector of the sensor plane and the magnetic field (BField)",
      "fill": "-1.0E31",
      "units": "deg",
      "x_label": "Pitch Angle",
      "x_labelComponents": [
        [
          "TOP_SENSOR_6",
          "TOP_SENSOR_7",
          "TOP_SENSOR_8",
          "BOT_SENSOR_6",
          "BOT_SENSOR_7",
          "BOT_SENSOR_8"
        ]
      ],
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "F20.3",
      "x_cdf_FIELDNAM": "srvy_l2_ion_pitch_angle ",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "epoch",
      "size": [
        6
      ],
      "bins": [
        {
          "name": "pitch_angle_indices",
          "description": "INTEGERS USED TO INDEX THE TOP AND BOTTOM ION SENSORS",
          "centers": [
            6,
            7,
            8,
            -6,
            -7,
            -8
          ],
          "units": null
        }
      ]
    },
    {
      "name": "mms2_epd_feeps_srvy_l2_ion_lat_gse",
      "type": "double",
      "x_cdf_DataType": "CDF_DOUBLE",
      "description": "Latitude",
      "fill": "-1.0E31",
      "units": "deg",
      "x_label": "Latitude",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "F20.3",
      "x_cdf_FIELDNAM": "srvy_l2_ion_lat_gse ",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "epoch"
    }
  ],
  "x_info_author": "bw",
  "x_cdaweb_hapi_version": "20260130.0606",
  "x_info_caching": false,
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "HAPI": "3.2",
  "x_LastUpdate": "2026-04-14T15:11:20Z"
}