{
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  "quantum_channel": {
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    "deterministic_relative_phase_rad": 0.0,
    "bandwidth_hz": 5000000000.0,
    "detector_jitter_s": 1e-10,
    "gate_half_width_s": 6e-10,
    "efficiency_a": 0.4,
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    "enforce_earth_occlusion": true,
    "gate_reference": "predicted_arrivals",
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    "gate_timing_error_s": 0.0,
    "emitted_pairs_per_setting": 8192,
    "source_pair_rate_hz": 1000000.0,
    "seed": 20260915,
    "phase_sigma_a_rad": 0.0,
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    "phase_correlation": null,
    "phase_parameter_source": "Zero phase noise idealization; source depolarization remains"
  },
  "spacetime": "flat_sr",
  "orbit_source": "sgp4",
  "scenario3_release_policy": "same_as_scenario2",
  "tracking": {
    "catalog_ids": {
      "emitter": 25544,
      "detector1": 42829,
      "detector2": 20580
    },
    "cache_dir": "tracking_fixtures/capture_20260916",
    "max_age_days": 7,
    "allow_stale": false,
    "offline": true,
    "refresh_hours": 2,
    "iers_auto_download": false,
    "allow_degraded_iers": false,
    "leap_second_file": "timing_data/Leap_Second.dat"
  },
  "epoch_utc": "2026-09-16T18:32:00Z",
  "frame_velocity_m_s": [
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    0,
    0
  ],
  "comparison": {
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    "samples": 13,
    "scenario_steps": 3,
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      3
    ],
    "iers_file": "verification/tracking/timing_inputs/finals2000A.all",
    "sample_counts": false,
    "controls": false,
    "sensitivity_enabled": false
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  "numerical_model": {
    "model": "j2",
    "rtol": 1e-11,
    "atol_position_m": 0.0001,
    "atol_velocity_m_s": 1e-07,
    "max_step_s": 30.0
  }
}