{
  "startDate": "2015-09-01T00:32:55Z",
  "stopDate": "2025-08-29T23:04:25Z",
  "sampleStartDate": "2025-08-25T16:07:25Z",
  "sampleStopDate": "2025-08-26T07:14:22Z",
  "cadence": "PT58.055327S",
  "x_cadence_fraction": 0.01834862385321101,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms1/fpi/slow/l2/dis-dist/2015/09/mms1_fpi_slow_l2_dis-dist_20150901003255_v3.4.0.cdf. The most common cadence, 58055327000 [ns] = PT58.055327S, occurred for 1.8349% of the 2 timesteps.",
  "maxRequestDuration": "PT2720850S",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesM.html#MMS1_FPI_SLOW_L2_DIS-DIST",
  "contact": "J. Burch, D. Gershman @ SwRI, GSFC",
  "parameters": [
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      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 30,
      "fill": null,
      "x_description": "Nanoseconds since J2000",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_TIME_TT2000"
    },
    {
      "name": "mms1_dis_errorflags_slow",
      "type": "double",
      "x_cdf_DataType": "CDF_UINT4",
      "description": "MMS1 FPI/DIS vector of data-quality indicators at survey-start time. Note: CDF_UINT4 data was converted to HAPI double.",
      "fill": "4.294967295E9",
      "units": "32-bit error flags",
      "x_label": "errFlags",
      "x_cdf_FORMAT": "I10",
      "x_cdf_FIELDNAM": "MMS1 FPI/DIS quality error flag",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "mms1_dis_startdelphi_count_slow",
      "type": "integer",
      "x_cdf_DataType": "CDF_UINT2",
      "description": "MMS1 FPI/DIS Del-Phi (obs spin-phase) count at survey-start time",
      "fill": "65535",
      "units": "del-phi counts",
      "x_label": "DelPhi_cnt",
      "x_cdf_FORMAT": "I4.4",
      "x_cdf_FIELDNAM": "MMS1 FPI/DIS start Del-Phi count",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "mms1_dis_startdelphi_angle_slow",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "MMS1 FPI/DIS Del-Phi (obs spin-phase) angle at survey-start time",
      "fill": "-1.0E31",
      "units": "deg",
      "x_label": "DelPhi_ang",
      "x_format": ".2e",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "E12.2",
      "x_cdf_FIELDNAM": "MMS1 FPI/DIS start Del-Phi angle",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "mms1_dis_dist_slow",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "MMS1 FPI/DIS Slow Survey sky-map instrument distribution",
      "fill": "-1.0E31",
      "units": "s^3/cm^6",
      "x_label": [
        [
          "14.0 deg",
          "36.5 deg",
          "59.0 deg",
          "81.5 deg",
          "104.0 deg",
          "126.5 deg",
          "149.0 deg",
          "171.5 deg",
          "194.0 deg",
          "216.5 deg",
          "239.0 deg",
          "261.5 deg",
          "284.0 deg",
          "306.5 deg",
          "329.0 deg",
          "351.5 deg"
        ],
        [
          "5.6250 deg",
          "16.875 deg",
          "28.125 deg",
          "39.375 deg",
          "50.625 deg",
          "61.875 deg",
          "73.125 deg",
          "84.375 deg",
          "95.625 deg",
          "106.88 deg",
          "118.13 deg",
          "129.38 deg",
          "140.63 deg",
          "151.88 deg",
          "163.13 deg",
          "174.38 deg"
        ],
        [
          "energy00",
          "energy01",
          "energy02",
          "energy03",
          "energy04",
          "energy05",
          "energy07",
          "energy07",
          "energy08",
          "energy09",
          "energy10",
          "energy11",
          "energy12",
          "energy13",
          "energy14",
          "energy15",
          "energy16",
          "energy17",
          "energy18",
          "energy19",
          "energy20",
          "energy21",
          "energy22",
          "energy23",
          "energy24",
          "energy25",
          "energy26",
          "energy27",
          "energy28",
          "energy29",
          "energy30",
          "energy31"
        ]
      ],
      "x_format": ".2e",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "E12.2",
      "x_cdf_FIELDNAM": "MMS1 FPI/DIS slowSkyMap dist",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
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        16,
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      ]
    },
    {
      "name": "mms1_dis_disterr_slow",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "MMS1 FPI/DIS Slow Survey sky-map instrument distribution 1-sigma error",
      "fill": "-1.0E31",
      "units": "s^3/cm^6",
      "x_label": [
        [
          "14.0 deg",
          "36.5 deg",
          "59.0 deg",
          "81.5 deg",
          "104.0 deg",
          "126.5 deg",
          "149.0 deg",
          "171.5 deg",
          "194.0 deg",
          "216.5 deg",
          "239.0 deg",
          "261.5 deg",
          "284.0 deg",
          "306.5 deg",
          "329.0 deg",
          "351.5 deg"
        ],
        [
          "5.6250 deg",
          "16.875 deg",
          "28.125 deg",
          "39.375 deg",
          "50.625 deg",
          "61.875 deg",
          "73.125 deg",
          "84.375 deg",
          "95.625 deg",
          "106.88 deg",
          "118.13 deg",
          "129.38 deg",
          "140.63 deg",
          "151.88 deg",
          "163.13 deg",
          "174.38 deg"
        ],
        [
          "energy00",
          "energy01",
          "energy02",
          "energy03",
          "energy04",
          "energy05",
          "energy07",
          "energy07",
          "energy08",
          "energy09",
          "energy10",
          "energy11",
          "energy12",
          "energy13",
          "energy14",
          "energy15",
          "energy16",
          "energy17",
          "energy18",
          "energy19",
          "energy20",
          "energy21",
          "energy22",
          "energy23",
          "energy24",
          "energy25",
          "energy26",
          "energy27",
          "energy28",
          "energy29",
          "energy30",
          "energy31"
        ]
      ],
      "x_format": ".2e",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "E12.2",
      "x_cdf_FIELDNAM": "MMS1 FPI/DIS slowSkyMap distErr",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
      "size": [
        16,
        16,
        32
      ]
    },
    {
      "name": "mms1_dis_avgf1counts_slow",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "MMS1 FPI/DIS slow survey average f1 count values",
      "fill": "-1.0E31",
      "units": "s^3/cm^6",
      "x_label": "avg 1-count level",
      "x_format": ".2e",
      "x_fractionDigits": "2",
      "x_cdf_FORMAT": "E12.2",
      "x_cdf_FIELDNAM": "MMS1 FPI/DIS avgf1counts",
      "x_cdf_DEPEND_0": "Epoch",
      "size": [
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      ]
    }
  ],
  "x_info_author": "bw",
  "x_cdaweb_hapi_version": "20260130.0606",
  "x_info_caching": false,
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "HAPI": "3.2",
  "x_LastUpdate": "2026-05-12T15:23:57Z"
}