{
  "startDate": "2017-07-01T00:00Z",
  "stopDate": "2026-04-02T23:55Z",
  "sampleStartDate": "2026-04-01T00:00Z",
  "sampleStopDate": "2026-04-01T23:55Z",
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  "x_cadence_fraction": 1,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/ace/mag/level_2_cdaweb/mfi_k0/2017/ac_k0_mfi_20170701_v01.cdf. The most common cadence, 300000 [ms] = PT5M, occurred for all 287 timesteps.",
  "maxRequestDuration": "PT71750M",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesA.html#AC_K0_MFI",
  "contact": "N. Ness @ Bartol Research Institute",
  "resourceID": "https://doi.org/10.48322/cs7n-7c62",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/ACE/MAG/KeyParameter/PT5M.html"
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      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
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      "x_cdf_DataType": "CDF_EPOCH"
    },
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      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
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      "fill": "-1.0E31",
      "units": "nT",
      "x_label": "[PRELIM] <|B|>",
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "F8.3",
      "x_cdf_FIELDNAM": "B-field magnitude",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
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      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
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      "fill": "-1.0E31",
      "units": "nT",
      "x_label": [
        "[PRELIM] Bx GSE",
        "[PRELIM] By GSE",
        "[PRELIM] Bz GSE"
      ],
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "F9.3",
      "x_cdf_FIELDNAM": "Mag Field, Cartesian GSE coord",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
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      ]
    }
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  "x_info_author": "bw",
  "x_cdaweb_hapi_version": "20260130.0606",
  "x_info_caching": false,
  "status": {
    "code": 1200,
    "message": "OK"
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  "HAPI": "3.2",
  "x_LastUpdate": "2026-04-12T15:08:18Z"
}