{
  "Epoch": [
    {
      "url": "https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms1/fpi/fast/l2/des-momsaux/2015/09/mms1_fpi_fast_l2_des-momsaux_20150901000000_v3.4.0.cdf",
      "start": "2015-09-01T00:00:01.144503000Z",
      "stop": "2015-09-01T00:13:37.441538000Z",
      "note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms1/fpi/fast/l2/des-momsaux/2015/09/mms1_fpi_fast_l2_des-momsaux_20150901000000_v3.4.0.cdf. The most common cadence, 4500031000 [ns] = PT4.500031S, occurred for 30.9859% of the 22 timesteps.",
      "counts": [
        {
          "count": 22,
          "duration": 4500031000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500031S",
          "fraction": 0.30985915492957744
        },
        {
          "count": 20,
          "duration": 4500024000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500024S",
          "fraction": 0.28169014084507044
        },
        {
          "count": 11,
          "duration": 4500025000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500025S",
          "fraction": 0.15492957746478872
        },
        {
          "count": 7,
          "duration": 4500030000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.50003S",
          "fraction": 0.09859154929577464
        },
        {
          "count": 5,
          "duration": 4500032000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500032S",
          "fraction": 0.07042253521126761
        },
        {
          "count": 2,
          "duration": 4500023000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500023S",
          "fraction": 0.028169014084507043
        },
        {
          "count": 1,
          "duration": 4500026000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500026S",
          "fraction": 0.014084507042253521
        },
        {
          "count": 1,
          "duration": 501295100000,
          "duration_unit": "ns",
          "duration_iso8601": "PT8M21.2951S",
          "fraction": 0.014084507042253521
        },
        {
          "count": 1,
          "duration": 4500022000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500022S",
          "fraction": 0.014084507042253521
        },
        {
          "count": 1,
          "duration": 4500034000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500034S",
          "fraction": 0.014084507042253521
        }
      ]
    },
    {
      "url": "https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms1/fpi/fast/l2/des-momsaux/2025/12/mms1_fpi_fast_l2_des-momsaux_20251227160000_v3.4.0.cdf",
      "start": "2025-12-27T16:00:01.014972000Z",
      "stop": "2025-12-27T17:59:47.596934000Z",
      "note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms1/fpi/fast/l2/des-momsaux/2025/12/mms1_fpi_fast_l2_des-momsaux_20251227160000_v3.4.0.cdf. The most common cadence, 4500057000 [ns] = PT4.500057S, occurred for 25.4853% of the 407 timesteps.",
      "counts": [
        {
          "count": 407,
          "duration": 4500057000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500057S",
          "fraction": 0.2548528490920476
        },
        {
          "count": 399,
          "duration": 4500046000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500046S",
          "fraction": 0.2498434564809017
        },
        {
          "count": 299,
          "duration": 4500045000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500045S",
          "fraction": 0.18722604884157795
        },
        {
          "count": 207,
          "duration": 4500058000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500058S",
          "fraction": 0.12961803381340012
        },
        {
          "count": 158,
          "duration": 4500056000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500056S",
          "fraction": 0.09893550407013149
        },
        {
          "count": 55,
          "duration": 4500047000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500047S",
          "fraction": 0.034439574201628055
        },
        {
          "count": 37,
          "duration": 4500044000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500044S",
          "fraction": 0.023168440826549782
        },
        {
          "count": 11,
          "duration": 4500055000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500055S",
          "fraction": 0.0068879148403256105
        },
        {
          "count": 7,
          "duration": 4500059000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500059S",
          "fraction": 0.004383218534752661
        },
        {
          "count": 2,
          "duration": 4500043000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500043S",
          "fraction": 0.0012523481527864746
        },
        {
          "count": 2,
          "duration": 4500060000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.50006S",
          "fraction": 0.0012523481527864746
        },
        {
          "count": 1,
          "duration": 4500029000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500029S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500074000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500074S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500048000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500048S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500028000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500028S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500075000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500075S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500052000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500052S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500050000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.50005S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500038000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500038S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500065000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500065S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500041000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500041S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500061000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500061S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500040000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.50004S",
          "fraction": 0.0006261740763932373
        },
        {
          "count": 1,
          "duration": 4500062000,
          "duration_unit": "ns",
          "duration_iso8601": "PT4.500062S",
          "fraction": 0.0006261740763932373
        }
      ]
    }
  ]
}