{
  "startDate": "1997-09-02T00:00:12Z",
  "stopDate": "2026-02-23T23:59:57Z",
  "sampleStartDate": "2026-02-22T00:00:13Z",
  "sampleStopDate": "2026-02-22T23:59:57Z",
  "cadence": "PT16S",
  "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_h0/1997/ac_h0_mfi_19970902_v04.cdf. The most common cadence, 16000 [ms] = PT16S, occurred for all 5399 timesteps.",
  "maxRequestDuration": "PT4319200S",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesA.html#AC_H0_MFI",
  "contact": "N. Ness @ Bartol Research Institute",
  "resourceID": "https://doi.org/10.48322/e0dc-0h53",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/ACE/MAG/L2/PT16S.html"
  },
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
      "x_description": "Time, beginning of interval",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_EPOCH"
    },
    {
      "name": "Magnitude",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "B-field magnitude",
      "fill": "-1.0E31",
      "units": "nT",
      "x_label": "<|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"
    },
    {
      "name": "BGSEc",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Magnetic Field Vector in GSE Cartesian coordinates (16 sec)",
      "fill": "-1.0E31",
      "units": "nT",
      "x_label": [
        "Bx GSE",
        "By GSE",
        "Bz GSE"
      ],
      "x_format": ".3f",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "F9.3",
      "x_cdf_FIELDNAM": "Mag Field vector, GSE coord",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
      "size": [
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      ]
    },
    {
      "name": "BGSM",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
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      "fill": "-1.0E31",
      "units": "nT",
      "x_label": [
        "Bx (GSM)",
        "By (GSM)",
        "Bz (GSM)"
      ],
      "x_format": ".3e",
      "x_fractionDigits": "3",
      "x_cdf_FORMAT": "E9.3",
      "x_cdf_FIELDNAM": "Mag field vector, GSM coord",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
      "size": [
        3
      ]
    },
    {
      "name": "dBrms",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
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      "fill": "-1.0E31",
      "units": "nT",
      "x_label": "dBrms",
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      "x_cdf_FORMAT": "F8.3",
      "x_cdf_FIELDNAM": "RMS of B (16 sec)",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "SC_pos_GSE",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "ACE s/c position, 3 comp. in GSE coord.",
      "fill": "-1.0E31",
      "units": "km",
      "x_label": [
        "ACE X-GSE",
        "ACE Y-GSE",
        "ACE Z-GSE"
      ],
      "x_format": ".1f",
      "x_fractionDigits": "1",
      "x_cdf_FORMAT": "f9.1",
      "x_cdf_FIELDNAM": "S/C position in GSE",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
      "size": [
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      ]
    },
    {
      "name": "SC_pos_GSM",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "ACE s/c position, 3 comp. in GSM coord.",
      "fill": "-1.0E31",
      "units": "km",
      "x_label": [
        "ACE X-GSM",
        "ACE Y-GSM",
        "ACE Z-GSM"
      ],
      "x_format": ".1f",
      "x_fractionDigits": "1",
      "x_cdf_FORMAT": "f9.1",
      "x_cdf_FIELDNAM": "S/C position in GSM",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch",
      "size": [
        3
      ]
    }
  ],
  "x_info_author": "bw",
  "x_cdaweb_hapi_version": "20260130.0606",
  "x_info_caching": false,
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "HAPI": "3.2",
  "x_LastUpdate": "2026-04-12T15:08:16Z"
}