{
  "Frequency": [
    {
      "url": "https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/eac/2025/ts1_l2_efi_eac_20250926_v2.0.0.cdf",
      "counts": [],
      "error": "RecVariance = 'NOVARY' for DEPEND_0 = 'Frequency' variable is not 'VARY' in master."
    },
    {
      "url": "https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/eac/2026/ts1_l2_efi_eac_20260430_v2.0.0.cdf",
      "counts": [],
      "error": "RecVariance = 'NOVARY' for DEPEND_0 = 'Frequency' variable is not 'VARY' in master."
    }
  ],
  "Epoch": [
    {
      "url": "https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/eac/2025/ts1_l2_efi_eac_20250926_v2.0.0.cdf",
      "start": "2025-09-26T01:54:01.298171000Z",
      "stop": "2025-09-26T02:13:01.297681440Z",
      "note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/eac/2025/ts1_l2_efi_eac_20250926_v2.0.0.cdf. The most common cadence, 488280 [ns] = PT0.000488280S, occurred for 99.9024% of the 2309934 timesteps.",
      "counts": [
        {
          "count": 2309934,
          "duration": 488280,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.000488280S",
          "fraction": 0.9990238695678687
        },
        {
          "count": 2256,
          "duration": 489560,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.000489560S",
          "fraction": 0.0009756979419087783
        },
        {
          "count": 1,
          "duration": 11000489560,
          "duration_unit": "ns",
          "duration_iso8601": "PT11.00049S",
          "fraction": 4.324902224772953e-07
        }
      ]
    },
    {
      "url": "https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/eac/2026/ts1_l2_efi_eac_20260430_v2.0.0.cdf",
      "start": "2026-04-30T08:47:41.604323000Z",
      "stop": "2026-04-30T23:42:58.757154440Z",
      "note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/eac/2026/ts1_l2_efi_eac_20260430_v2.0.0.cdf. The most common cadence, 488280 [ns] = PT0.000488280S, occurred for 99.9024% of the 5685834 timesteps.",
      "counts": [
        {
          "count": 5685834,
          "duration": 488280,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.000488280S",
          "fraction": 0.9990236130323852
        },
        {
          "count": 5087,
          "duration": 489560,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.000489560S",
          "fraction": 0.0008938061011798346
        },
        {
          "count": 251,
          "duration": 63500489560,
          "duration_unit": "ns",
          "duration_iso8601": "PT1M3.50049S",
          "fraction": 4.4101696755678886e-05
        },
        {
          "count": 126,
          "duration": 977560,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.000977560S",
          "fraction": 2.2138700363408524e-05
        },
        {
          "count": 50,
          "duration": 978560,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.000978560S",
          "fraction": 8.785198556908143e-06
        },
        {
          "count": 2,
          "duration": 560,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.000000560S",
          "fraction": 3.5140794227632575e-07
        },
        {
          "count": 1,
          "duration": 9489018556560,
          "duration_unit": "ns",
          "duration_iso8601": "PT2H38M9.018557S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 3737577149560,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H2M17.57715S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 3703380860560,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H1M43.380861S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 38500489560,
          "duration_unit": "ns",
          "duration_iso8601": "PT38.50049S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 3540901368560,
          "duration_unit": "ns",
          "duration_iso8601": "PT59M0.901369S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 3996504395560,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H6M36.504396S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 44000489560,
          "duration_unit": "ns",
          "duration_iso8601": "PT44.00049S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 500489560,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.50049S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 3615153321560,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H15.153322S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 63508790560,
          "duration_unit": "ns",
          "duration_iso8601": "PT1M3.508791S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 41000489560,
          "duration_unit": "ns",
          "duration_iso8601": "PT41.00049S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 3456710450560,
          "duration_unit": "ns",
          "duration_iso8601": "PT57M36.710451S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 1465560,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.001466S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 1466560,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.001467S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 49500489560,
          "duration_unit": "ns",
          "duration_iso8601": "PT49.50049S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 3213371583560,
          "duration_unit": "ns",
          "duration_iso8601": "PT53M33.371584S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 1560,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.000001560S",
          "fraction": 1.7570397113816288e-07
        },
        {
          "count": 1,
          "duration": 10000489560,
          "duration_unit": "ns",
          "duration_iso8601": "PT10.00049S",
          "fraction": 1.7570397113816288e-07
        }
      ]
    }
  ],
  "ts1_l2_eac_packet_start": [
    {
      "url": "https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/eac/2025/ts1_l2_efi_eac_20250926_v2.0.0.cdf",
      "start": "2025-09-26T01:54:01.298094000Z",
      "stop": "2025-09-26T02:13:00.798094000Z",
      "note": "Counts based on variable 'ts1_l2_eac_packet_start' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/eac/2025/ts1_l2_efi_eac_20250926_v2.0.0.cdf. The most common cadence, 500000000 [ns] = PT0.5S, occurred for 99.9557% of the 2256 timesteps.",
      "counts": [
        {
          "count": 2256,
          "duration": 500000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.5S",
          "fraction": 0.9995569339831635
        },
        {
          "count": 1,
          "duration": 11500000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT11.5S",
          "fraction": 0.00044306601683650863
        }
      ]
    },
    {
      "url": "https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/eac/2026/ts1_l2_efi_eac_20260430_v2.0.0.cdf",
      "start": "2026-04-30T08:47:41.604246000Z",
      "stop": "2026-04-30T23:42:58.257567000Z",
      "note": "Counts based on variable 'ts1_l2_eac_packet_start' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/tracers/tracers1/efi/l2/eac/2026/ts1_l2_efi_eac_20260430_v2.0.0.cdf. The most common cadence, 500000000 [ns] = PT0.5S, occurred for 91.5422% of the 5087 timesteps.",
      "counts": [
        {
          "count": 5087,
          "duration": 500000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.5S",
          "fraction": 0.9154219902825266
        },
        {
          "count": 251,
          "duration": 64000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1M4S",
          "fraction": 0.045168256253374124
        },
        {
          "count": 126,
          "duration": 500488000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.500488S",
          "fraction": 0.02267410473276948
        },
        {
          "count": 50,
          "duration": 500489000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.500489S",
          "fraction": 0.008997660608241857
        },
        {
          "count": 13,
          "duration": 497559000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.497559S",
          "fraction": 0.002339391758142883
        },
        {
          "count": 9,
          "duration": 497558000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.497558S",
          "fraction": 0.0016195789094835343
        },
        {
          "count": 2,
          "duration": 499511000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.499511S",
          "fraction": 0.00035990642432967427
        },
        {
          "count": 1,
          "duration": 9489518067000,
          "duration_unit": "ns",
          "duration_iso8601": "PT2H38M9.518067S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 3738076660000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H2M18.07666S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 3703880371000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H1M43.880371S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 39000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT39S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 3541400879000,
          "duration_unit": "ns",
          "duration_iso8601": "PT59M1.400879S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 3997003906000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H6M37.003906S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 44500000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT44.5S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 1000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 3615652832000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1H15.652832S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 64008301000,
          "duration_unit": "ns",
          "duration_iso8601": "PT1M4.008301S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 41500000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT41.5S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 3457209961000,
          "duration_unit": "ns",
          "duration_iso8601": "PT57M37.209961S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 500976000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.500976S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 500977000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.500977S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 50000000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT50S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 3213871094000,
          "duration_unit": "ns",
          "duration_iso8601": "PT53M33.871094S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 498536000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.498536S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 499512000,
          "duration_unit": "ns",
          "duration_iso8601": "PT0.499512S",
          "fraction": 0.00017995321216483713
        },
        {
          "count": 1,
          "duration": 10500000000,
          "duration_unit": "ns",
          "duration_iso8601": "PT10.5S",
          "fraction": 0.00017995321216483713
        }
      ]
    }
  ]
}