{
  "version": "1.0.0",
  "scope": "Instrument opportunity comparison, not a detection probability model",
  "as_of_date_utc": "2026-10-03",
  "instruments": [
    {
      "instrument": "GOES-R ABI",
      "orbit": "geostationary",
      "current_primary_spacecraft": [
        "GOES-19 East",
        "GOES-18 West"
      ],
      "nominal_ir_resolution_subpoint_m": 2000,
      "mode_6_cadence_seconds": {
        "full_disk": 600,
        "conus_or_pacus": 300,
        "two_mesoscale_domains_each": 60,
        "one_mesoscale_domain": 30
      },
      "limits": [
        "Not global coverage",
        "Actual scan-sector coverage and valid data must be verified",
        "Rapid mesoscale sampling is not disk-wide"
      ],
      "source_ids": [
        "N001",
        "N002",
        "N008"
      ]
    },
    {
      "instrument": "VIIRS",
      "orbit": "sun-synchronous polar orbit",
      "platform_examples": [
        "Suomi NPP",
        "NOAA-20",
        "NOAA-21"
      ],
      "nominal_nadir_resolution_m": {
        "I_bands": 375,
        "M_bands": 750
      },
      "NASA_L1B_nominal_granule_duration_seconds": 360,
      "granule_duration_is_revisit": false,
      "limits": [
        "Useful overpass must coincide with selected location and time",
        "Nominal sampling is not constant spatial accuracy",
        "No event-specific overpass claimed"
      ],
      "source_ids": [
        "N004",
        "N005",
        "N007"
      ]
    }
  ],
  "not_measured": [
    "Detection probability",
    "Launch-specific coverage",
    "Minimum detectable launch",
    "Worldwide completeness"
  ]
}