{
  "schema_version": "rfs-trace-acceptance.v1",
  "status": "preliminary - based on recorded study default assumptions (rfs-011-source-note-2026-07-05.md)",
  "run_date": "2026-08-09",
  "target_key": "fine_gsd_100",
  "optimizer_target_key": "fine_gsd_100",
  "design_source": "projects/rural-fire-service-camera/designs/emberscope-three-mirror-throughput-first-fine-gsd-100.v1.json",
  "optimization_report": "projects/rural-fire-service-camera/three-mirror-throughput-first-refinement-fine-gsd-100-2026-08-09.md",
  "optimization_evidence": {
    "geometry_budget": 2340,
    "freeform_budget": 0,
    "stage_a_de_evaluations": 2340,
    "stage_a_polish_evaluations": 0,
    "stage_b_evaluations": 0,
    "final_merit": 1417.431899594
  },
  "source_evidence": {
    "selected_target_key": "fine_gsd_100",
    "decision_date": "2026-07-24",
    "signoff_authority": "Greg Baker, project lead",
    "altitude_basis": "120 m reference altitude",
    "payload_branch": "fine-GSD custom-reflective research comparator; not the COTS-first fleet-survey baseline",
    "source_artifact_or_note": "projects/rural-fire-service-camera/rfs-053-target-decision-2026-07-24.md"
  },
  "sampling_evidence": {
    "field_sample_results": [
      {
        "field_x_deg": 0.0,
        "field_y_deg": 0.0,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 0.941176471,
        "centroided_rms_spot_um": 1590.593501996,
        "geo_ee80_radius_um": 1723.764503227,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 0.243404414,
        "chief_ray_incidence_deg": {
          "M1_primary": 30.921214396,
          "M2_secondary": 62.868557048,
          "M3_tertiary": 30.769591453
        },
        "max_chief_ray_incidence_deg": 62.868557048,
        "small_hot_target_snr_factor": 0.0,
        "key": "center",
        "label": "Center field"
      },
      {
        "field_x_deg": 1.5575,
        "field_y_deg": 0.0,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 0.941176471,
        "centroided_rms_spot_um": 1610.705215618,
        "geo_ee80_radius_um": 1906.808795954,
        "ensquared_2px_fraction": 0.0625,
        "ensquared_16px_fraction": 0.0625,
        "best_focus_offset_mm": 0.208456873,
        "chief_ray_incidence_deg": {
          "M1_primary": 30.943348772,
          "M2_secondary": 62.892103019,
          "M3_tertiary": 30.822140318
        },
        "max_chief_ray_incidence_deg": 62.892103019,
        "small_hot_target_snr_factor": 0.045390441,
        "key": "x_mid_pos",
        "label": "+X mid field"
      },
      {
        "field_x_deg": 3.115,
        "field_y_deg": 0.0,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 0.941176471,
        "centroided_rms_spot_um": 1668.967656146,
        "geo_ee80_radius_um": 2084.064514385,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0625,
        "best_focus_offset_mm": 0.094986893,
        "chief_ray_incidence_deg": {
          "M1_primary": 31.009637857,
          "M2_secondary": 62.9627349,
          "M3_tertiary": 30.981590109
        },
        "max_chief_ray_incidence_deg": 62.9627349,
        "small_hot_target_snr_factor": 0.0,
        "key": "x_edge_pos",
        "label": "+X edge field"
      },
      {
        "field_x_deg": -1.5575,
        "field_y_deg": 0.0,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 0.941176471,
        "centroided_rms_spot_um": 1610.705215618,
        "geo_ee80_radius_um": 1906.808795954,
        "ensquared_2px_fraction": 0.0625,
        "ensquared_16px_fraction": 0.0625,
        "best_focus_offset_mm": 0.208456873,
        "chief_ray_incidence_deg": {
          "M1_primary": 30.943348772,
          "M2_secondary": 62.892103019,
          "M3_tertiary": 30.822140318
        },
        "max_chief_ray_incidence_deg": 62.892103019,
        "small_hot_target_snr_factor": 0.045390441,
        "key": "x_mid_neg",
        "label": "-X mid field"
      },
      {
        "field_x_deg": -3.115,
        "field_y_deg": 0.0,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 0.941176471,
        "centroided_rms_spot_um": 1668.967656146,
        "geo_ee80_radius_um": 2084.064514385,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0625,
        "best_focus_offset_mm": 0.094986893,
        "chief_ray_incidence_deg": {
          "M1_primary": 31.009637857,
          "M2_secondary": 62.9627349,
          "M3_tertiary": 30.981590109
        },
        "max_chief_ray_incidence_deg": 62.9627349,
        "small_hot_target_snr_factor": 0.0,
        "key": "x_edge_neg",
        "label": "-X edge field"
      },
      {
        "field_x_deg": 0.0,
        "field_y_deg": 1.245,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 0.941176471,
        "centroided_rms_spot_um": 1820.482089927,
        "geo_ee80_radius_um": 2260.803569117,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 3.315047702,
        "chief_ray_incidence_deg": {
          "M1_primary": 31.903633351,
          "M2_secondary": 61.619951762,
          "M3_tertiary": 29.657571768
        },
        "max_chief_ray_incidence_deg": 61.619951762,
        "small_hot_target_snr_factor": 0.0,
        "key": "y_mid_pos",
        "label": "+Y mid field"
      },
      {
        "field_x_deg": 0.0,
        "field_y_deg": 2.49,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 0.941176471,
        "centroided_rms_spot_um": 2297.96560277,
        "geo_ee80_radius_um": 2578.37644027,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 6.266187568,
        "chief_ray_incidence_deg": {
          "M1_primary": 32.879689943,
          "M2_secondary": 60.419391388,
          "M3_tertiary": 28.453075674
        },
        "max_chief_ray_incidence_deg": 60.419391388,
        "small_hot_target_snr_factor": 0.0,
        "key": "y_edge_pos",
        "label": "+Y edge field"
      },
      {
        "field_x_deg": 0.0,
        "field_y_deg": -1.245,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 1.0,
        "centroided_rms_spot_um": 2011.422237793,
        "geo_ee80_radius_um": 2021.535765928,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": -0.154932415,
        "chief_ray_incidence_deg": {
          "M1_primary": 29.932743214,
          "M2_secondary": 64.169132094,
          "M3_tertiary": 31.79467732
        },
        "max_chief_ray_incidence_deg": 64.169132094,
        "small_hot_target_snr_factor": 0.0,
        "key": "y_mid_neg",
        "label": "-Y mid field"
      },
      {
        "field_x_deg": 0.0,
        "field_y_deg": -2.49,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 1.0,
        "centroided_rms_spot_um": 2155.651985942,
        "geo_ee80_radius_um": 2421.414710686,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": -3.368468746,
        "chief_ray_incidence_deg": {
          "M1_primary": 28.938517921,
          "M2_secondary": 65.5264273,
          "M3_tertiary": 32.733813357
        },
        "max_chief_ray_incidence_deg": 65.5264273,
        "small_hot_target_snr_factor": 0.0,
        "key": "y_edge_neg",
        "label": "-Y edge field"
      },
      {
        "field_x_deg": 3.115,
        "field_y_deg": 2.49,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 0.941176471,
        "centroided_rms_spot_um": 2361.460070656,
        "geo_ee80_radius_um": 2790.599709824,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 6.075928582,
        "chief_ray_incidence_deg": {
          "M1_primary": 32.959468236,
          "M2_secondary": 60.514441583,
          "M3_tertiary": 28.675343975
        },
        "max_chief_ray_incidence_deg": 60.514441583,
        "small_hot_target_snr_factor": 0.0,
        "key": "corner_pp",
        "label": "+X +Y corner"
      },
      {
        "field_x_deg": 3.115,
        "field_y_deg": -2.49,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 1.0,
        "centroided_rms_spot_um": 2232.91425762,
        "geo_ee80_radius_um": 2599.188309612,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": -3.576905384,
        "chief_ray_incidence_deg": {
          "M1_primary": 29.036258083,
          "M2_secondary": 65.619873819,
          "M3_tertiary": 32.945805843
        },
        "max_chief_ray_incidence_deg": 65.619873819,
        "small_hot_target_snr_factor": 0.0,
        "key": "corner_pn",
        "label": "+X -Y corner"
      },
      {
        "field_x_deg": -3.115,
        "field_y_deg": 2.49,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 0.941176471,
        "centroided_rms_spot_um": 2361.460070656,
        "geo_ee80_radius_um": 2790.599709824,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 6.075928582,
        "chief_ray_incidence_deg": {
          "M1_primary": 32.959468236,
          "M2_secondary": 60.514441583,
          "M3_tertiary": 28.675343975
        },
        "max_chief_ray_incidence_deg": 60.514441583,
        "small_hot_target_snr_factor": 0.0,
        "key": "corner_np",
        "label": "-X +Y corner"
      },
      {
        "field_x_deg": -3.115,
        "field_y_deg": -2.49,
        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 1.0,
        "centroided_rms_spot_um": 2232.91425762,
        "geo_ee80_radius_um": 2599.188309612,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": -3.576905384,
        "chief_ray_incidence_deg": {
          "M1_primary": 29.036258083,
          "M2_secondary": 65.619873819,
          "M3_tertiary": 32.945805843
        },
        "max_chief_ray_incidence_deg": 65.619873819,
        "small_hot_target_snr_factor": 0.0,
        "key": "corner_nn",
        "label": "-X -Y corner"
      }
    ],
    "pupil_rings": [
      0.0,
      0.7,
      1.0
    ],
    "pupil_azimuths_deg": [
      0.0,
      45.0,
      90.0,
      135.0,
      180.0,
      225.0,
      270.0,
      315.0
    ],
    "minimum_rays_per_field": 17,
    "minimum_total_rays": 221,
    "measured_rays_per_field": {
      "center": 17,
      "x_mid_pos": 17,
      "x_edge_pos": 17,
      "x_mid_neg": 17,
      "x_edge_neg": 17,
      "y_mid_pos": 17,
      "y_edge_pos": 17,
      "y_mid_neg": 17,
      "y_edge_neg": 17,
      "corner_pp": 17,
      "corner_pn": 17,
      "corner_np": 17,
      "corner_nn": 17
    },
    "measured_total_rays": 221
  },
  "no_vignetting_evidence": {
    "threshold": 0.9,
    "min_unobscured_throughput_by_field": {
      "center": 0.941176471,
      "x_mid_pos": 0.941176471,
      "x_edge_pos": 0.941176471,
      "x_mid_neg": 0.941176471,
      "x_edge_neg": 0.941176471,
      "y_mid_pos": 0.941176471,
      "y_edge_pos": 0.941176471,
      "y_mid_neg": 1.0,
      "y_edge_neg": 1.0,
      "corner_pp": 0.941176471,
      "corner_pn": 1.0,
      "corner_np": 0.941176471,
      "corner_nn": 1.0
    },
    "minimum_measured_throughput": 0.941176471,
    "clipping_surface_by_field": {
      "center": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "x_mid_pos": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "x_edge_pos": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "x_mid_neg": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "x_edge_neg": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "y_mid_pos": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "y_edge_pos": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "y_mid_neg": "none in the modelled mirror/self-obstruction screen",
      "y_edge_neg": "none in the modelled mirror/self-obstruction screen",
      "corner_pp": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "corner_pn": "none in the modelled mirror/self-obstruction screen",
      "corner_np": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "corner_nn": "none in the modelled mirror/self-obstruction screen"
    },
    "stop_window_baffle_package_clearance": "fail - entrance stop and reflective train are modelled; window, baffle, and package boundaries are not represented",
    "detector_clearance": "fail - propagation terminates at the flat detector plane, but final detector-footprint containment is not separately closed"
  },
  "detector_plane_evidence": {
    "detector_plane_position": {
      "center_mm": [
        0.0,
        41.073562918,
        -81.997280194
      ],
      "normal": [
        0.0,
        -0.922572169,
        0.385824563
      ],
      "x_axis": [
        0.0,
        0.385824563,
        0.922572169
      ],
      "y_axis": [
        -1.0,
        0.0,
        0.0
      ],
      "width_mm": 10.88,
      "height_mm": 8.704
    },
    "diffraction_airy_radius_um": 24.156,
    "per_field_rms_spot_um": {
      "center": 1590.593501996,
      "x_mid_pos": 1610.705215618,
      "x_edge_pos": 1668.967656146,
      "x_mid_neg": 1610.705215618,
      "x_edge_neg": 1668.967656146,
      "y_mid_pos": 1820.482089927,
      "y_edge_pos": 2297.96560277,
      "y_mid_neg": 2011.422237793,
      "y_edge_neg": 2155.651985942,
      "corner_pp": 2361.460070656,
      "corner_pn": 2232.91425762,
      "corner_np": 2361.460070656,
      "corner_nn": 2232.91425762
    },
    "per_field_energy_2x2": {
      "center": 0.0,
      "x_mid_pos": 0.0625,
      "x_edge_pos": 0.0,
      "x_mid_neg": 0.0625,
      "x_edge_neg": 0.0,
      "y_mid_pos": 0.0,
      "y_edge_pos": 0.0,
      "y_mid_neg": 0.0,
      "y_edge_neg": 0.0,
      "corner_pp": 0.0,
      "corner_pn": 0.0,
      "corner_np": 0.0,
      "corner_nn": 0.0
    },
    "per_field_energy_16x16": {
      "center": 0.0,
      "x_mid_pos": 0.0625,
      "x_edge_pos": 0.0625,
      "x_mid_neg": 0.0625,
      "x_edge_neg": 0.0625,
      "y_mid_pos": 0.0,
      "y_edge_pos": 0.0,
      "y_mid_neg": 0.0,
      "y_edge_neg": 0.0,
      "corner_pp": 0.0,
      "corner_pn": 0.0,
      "corner_np": 0.0,
      "corner_nn": 0.0
    },
    "propagation_stops_at_detector": true
  },
  "angle_and_flat_image_evidence": {
    "chief_ray_angles_by_field": {
      "center": {
        "M1_primary": 30.921214396,
        "M2_secondary": 62.868557048,
        "M3_tertiary": 30.769591453
      },
      "x_mid_pos": {
        "M1_primary": 30.943348772,
        "M2_secondary": 62.892103019,
        "M3_tertiary": 30.822140318
      },
      "x_edge_pos": {
        "M1_primary": 31.009637857,
        "M2_secondary": 62.9627349,
        "M3_tertiary": 30.981590109
      },
      "x_mid_neg": {
        "M1_primary": 30.943348772,
        "M2_secondary": 62.892103019,
        "M3_tertiary": 30.822140318
      },
      "x_edge_neg": {
        "M1_primary": 31.009637857,
        "M2_secondary": 62.9627349,
        "M3_tertiary": 30.981590109
      },
      "y_mid_pos": {
        "M1_primary": 31.903633351,
        "M2_secondary": 61.619951762,
        "M3_tertiary": 29.657571768
      },
      "y_edge_pos": {
        "M1_primary": 32.879689943,
        "M2_secondary": 60.419391388,
        "M3_tertiary": 28.453075674
      },
      "y_mid_neg": {
        "M1_primary": 29.932743214,
        "M2_secondary": 64.169132094,
        "M3_tertiary": 31.79467732
      },
      "y_edge_neg": {
        "M1_primary": 28.938517921,
        "M2_secondary": 65.5264273,
        "M3_tertiary": 32.733813357
      },
      "corner_pp": {
        "M1_primary": 32.959468236,
        "M2_secondary": 60.514441583,
        "M3_tertiary": 28.675343975
      },
      "corner_pn": {
        "M1_primary": 29.036258083,
        "M2_secondary": 65.619873819,
        "M3_tertiary": 32.945805843
      },
      "corner_np": {
        "M1_primary": 32.959468236,
        "M2_secondary": 60.514441583,
        "M3_tertiary": 28.675343975
      },
      "corner_nn": {
        "M1_primary": 29.036258083,
        "M2_secondary": 65.619873819,
        "M3_tertiary": 32.945805843
      }
    },
    "fold_or_incidence_angles_by_surface": {
      "M1_primary": 30.921214396,
      "M2_secondary": 55.28901416,
      "M3_tertiary": 38.34913434
    },
    "maximum_surface_tip_parameter_deg": 55.28901416,
    "maximum_chief_ray_incidence_deg": 65.619873819,
    "best_focus_offset_by_field_mm": {
      "center": 0.243404414,
      "x_mid_pos": 0.208456873,
      "x_edge_pos": 0.094986893,
      "x_mid_neg": 0.208456873,
      "x_edge_neg": 0.094986893,
      "y_mid_pos": 3.315047702,
      "y_edge_pos": 6.266187568,
      "y_mid_neg": -0.154932415,
      "y_edge_neg": -3.368468746,
      "corner_pp": 6.075928582,
      "corner_pn": -3.576905384,
      "corner_np": 6.075928582,
      "corner_nn": -3.576905384
    },
    "best_fit_focus_spread_um": 9843.092951968,
    "image_plane_curvature_or_tilt": "shared flat detector plane; field best-focus spread reported instead of a curved detector fit"
  },
  "gate_verdicts": [
    {
      "key": "field_sample_count",
      "verdict": "pass",
      "requirement": "exactly 13 named detector-field samples",
      "measured": 13
    },
    {
      "key": "pupil_sampling",
      "verdict": "pass",
      "requirement": "rings 0, 0.7, 1; eight azimuths; >=17 rays/field and >=221 total",
      "measured": {
        "minimum_rays_per_field": 17,
        "total_rays": 221
      }
    },
    {
      "key": "plate_scale_efl",
      "verdict": "pass",
      "requirement": "100.0 mm target within 5%",
      "measured": 95.51891209
    },
    {
      "key": "no_vignetting",
      "verdict": "pass",
      "requirement": ">=0.90 unobscured throughput in every field",
      "measured": 0.941176471
    },
    {
      "key": "physical_clearance_model",
      "verdict": "fail",
      "requirement": "mirror, stop, window, baffle, package, and detector clearance all closed",
      "measured": "mirrors and self-obstruction modelled; window, baffle, package, and detector footprint not closed"
    },
    {
      "key": "detector_plane_metrics_reported",
      "verdict": "pass",
      "requirement": "RMS plus 2x2 and 16x16 energy reported at the flat detector for every field",
      "measured": 13
    },
    {
      "key": "detector_plane_rms",
      "verdict": "fail",
      "requirement": "every field RMS <= 24.156 um Airy radius",
      "measured": 2361.460070656
    },
    {
      "key": "chief_ray_angle_reporting",
      "verdict": "pass",
      "requirement": "chief-ray incidence reported at every reflective surface for every field",
      "measured": {
        "maximum_deg": 65.619873819,
        "missing_fields": []
      }
    },
    {
      "key": "flat_image",
      "verdict": "fail",
      "requirement": "best-focus spread <= 24.156 um Airy radius",
      "measured": 9843.092951968
    },
    {
      "key": "package_span",
      "verdict": "pass",
      "requirement": "<= 150 mm",
      "measured": 120.401375699
    },
    {
      "key": "mass_proxy",
      "verdict": "pass",
      "requirement": "<= 2.0 kg",
      "measured": 0.384794036
    }
  ],
  "verdict_record": {
    "verdict": "fail",
    "failed_gates": [
      "physical_clearance_model",
      "detector_plane_rms",
      "flat_image"
    ],
    "fallback_target_key": null,
    "next_engineering_action": "Keep this clear-pupil geometry as a bounded negative RFS-079 result. A later RFS-019 child must introduce an optical-error correction strategy without surrendering the measured throughput, EFL, or package gates."
  }
}