{
  "Epoch": [
    {
      "url": "https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/hsk/2025/ts1_l2_efi_hsk_20250926_v1.1.0.cdf",
      "start": "2025-09-26T01:54:01.021040000Z",
      "stop": "2025-09-26T02:13:01.021040000Z",
      "note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/hsk/2025/ts1_l2_efi_hsk_20250926_v1.1.0.cdf. The most common cadence, 1000000000 [ns] = PT1S, occurred for 99.9118% of the 1133 timesteps.",
      "counts": [
        {
          "count": 1133,
          "duration": 1000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1S",
          "fraction": 0.9991181657848325
        },
        {
          "count": 1,
          "duration": 7000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT7S",
          "fraction": 0.0008818342151675485
        }
      ]
    },
    {
      "url": "https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/hsk/2026/ts1_l2_efi_hsk_20260430_v1.1.0.cdf",
      "start": "2026-04-30T08:47:19.021040000Z",
      "stop": "2026-04-30T23:43:12.021040000Z",
      "note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/hsk/2026/ts1_l2_efi_hsk_20260430_v1.1.0.cdf. The most common cadence, 1000000000 [ns] = PT1S, occurred for 99.9587% of the 19359 timesteps.",
      "counts": [
        {
          "count": 19359,
          "duration": 1000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1S",
          "fraction": 0.9995869262146951
        },
        {
          "count": 1,
          "duration": 9441000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT2H37M21S",
          "fraction": 5.163422316311251e-05
        },
        {
          "count": 1,
          "duration": 3672000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H1M12S",
          "fraction": 5.163422316311251e-05
        },
        {
          "count": 1,
          "duration": 3656000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H56S",
          "fraction": 5.163422316311251e-05
        },
        {
          "count": 1,
          "duration": 3482000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT58M2S",
          "fraction": 5.163422316311251e-05
        },
        {
          "count": 1,
          "duration": 3921000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H5M21S",
          "fraction": 5.163422316311251e-05
        },
        {
          "count": 1,
          "duration": 3609000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H9S",
          "fraction": 5.163422316311251e-05
        },
        {
          "count": 1,
          "duration": 3424000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT57M4S",
          "fraction": 5.163422316311251e-05
        },
        {
          "count": 1,
          "duration": 3189000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT53M9S",
          "fraction": 5.163422316311251e-05
        }
      ]
    }
  ]
}