{
  "schema_version": "rfs-trace-acceptance.v1",
  "status": "preliminary - based on recorded study default assumptions (rfs-011-source-note-2026-07-05.md)",
  "run_date": "2026-08-01",
  "target_key": "fine_gsd_100",
  "optimizer_target_key": "fine_gsd_100",
  "design_source": "projects/rural-fire-service-camera/designs/emberscope-three-mirror-fine-gsd-100.v1.json",
  "optimization_report": "projects/rural-fire-service-camera/three-mirror-prescription-optimization-fine-gsd-100-2026-08-01.md",
  "optimization_evidence": {
    "geometry_budget": 400,
    "freeform_budget": 400,
    "stage_a_de_evaluations": 572,
    "stage_a_polish_evaluations": 150,
    "stage_b_evaluations": 220,
    "final_merit": 3227.445799161
  },
  "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": [
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        "field_deg": null,
        "traced_rays": 17,
        "valid_fraction": 0.529411765,
        "centroided_rms_spot_um": 1356.008324591,
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        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 1.278142048,
        "chief_ray_incidence_deg": {
          "M1_primary": 25.450136156,
          "M2_secondary": 68.383877006,
          "M3_tertiary": 24.570244306
        },
        "max_chief_ray_incidence_deg": 68.383877006,
        "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": 0.529411765,
        "centroided_rms_spot_um": 1382.025069265,
        "geo_ee80_radius_um": 1588.462714665,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 1.270556553,
        "chief_ray_incidence_deg": {
          "M1_primary": 25.470403617,
          "M2_secondary": 68.397600554,
          "M3_tertiary": 24.561841183
        },
        "max_chief_ray_incidence_deg": 68.397600554,
        "small_hot_target_snr_factor": 0.0,
        "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": 0.529411765,
        "centroided_rms_spot_um": 2007.953846799,
        "geo_ee80_radius_um": 2022.218913995,
        "ensquared_2px_fraction": 0.0,
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        "best_focus_offset_mm": -0.518100266,
        "chief_ray_incidence_deg": {
          "M1_primary": 25.531105971,
          "M2_secondary": 68.438782138,
          "M3_tertiary": 24.536610562
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        "max_chief_ray_incidence_deg": 68.438782138,
        "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": 0.529411765,
        "centroided_rms_spot_um": 1382.025069265,
        "geo_ee80_radius_um": 1588.462714665,
        "ensquared_2px_fraction": 0.0,
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        "best_focus_offset_mm": 1.270556553,
        "chief_ray_incidence_deg": {
          "M1_primary": 25.470403617,
          "M2_secondary": 68.397600554,
          "M3_tertiary": 24.561841183
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        "max_chief_ray_incidence_deg": 68.397600554,
        "small_hot_target_snr_factor": 0.0,
        "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": 0.529411765,
        "centroided_rms_spot_um": 2007.953846799,
        "geo_ee80_radius_um": 2022.218913995,
        "ensquared_2px_fraction": 0.0,
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        "best_focus_offset_mm": -0.518100266,
        "chief_ray_incidence_deg": {
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          "M2_secondary": 68.438782138,
          "M3_tertiary": 24.536610562
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        "max_chief_ray_incidence_deg": 68.438782138,
        "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": 0.647058824,
        "centroided_rms_spot_um": 2035.7817121,
        "geo_ee80_radius_um": 2332.049946409,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 0.398762771,
        "chief_ray_incidence_deg": {
          "M1_primary": 26.287171168,
          "M2_secondary": 67.609884883,
          "M3_tertiary": 25.457384386
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        "max_chief_ray_incidence_deg": 67.609884883,
        "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": 0.647058824,
        "centroided_rms_spot_um": 2241.201278304,
        "geo_ee80_radius_um": 2593.602470705,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 1.845708865,
        "chief_ray_incidence_deg": {
          "M1_primary": 27.117077953,
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          "M3_tertiary": 26.287072563
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        "max_chief_ray_incidence_deg": 66.868135575,
        "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": 0.529411765,
        "centroided_rms_spot_um": 2205.396764004,
        "geo_ee80_radius_um": 2719.882448185,
        "ensquared_2px_fraction": 0.0,
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        "best_focus_offset_mm": 4.397740115,
        "chief_ray_incidence_deg": {
          "M1_primary": 24.60609589,
          "M2_secondary": 69.192528513,
          "M3_tertiary": 23.619569875
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        "max_chief_ray_incidence_deg": 69.192528513,
        "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": 0.235294118,
        "centroided_rms_spot_um": 2208.256160117,
        "geo_ee80_radius_um": 2439.444666518,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 4.357400534,
        "chief_ray_incidence_deg": {
          "M1_primary": null,
          "M2_secondary": null,
          "M3_tertiary": null
        },
        "max_chief_ray_incidence_deg": null,
        "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": 0.588235294,
        "centroided_rms_spot_um": 2294.332038156,
        "geo_ee80_radius_um": 2520.627873423,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 2.366963013,
        "chief_ray_incidence_deg": {
          "M1_primary": 27.190036615,
          "M2_secondary": 66.922699024,
          "M3_tertiary": 26.25445079
        },
        "max_chief_ray_incidence_deg": 66.922699024,
        "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": 0.235294118,
        "centroided_rms_spot_um": 2249.253578284,
        "geo_ee80_radius_um": 2450.757350672,
        "ensquared_2px_fraction": 0.0,
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        "best_focus_offset_mm": 4.40143145,
        "chief_ray_incidence_deg": {
          "M1_primary": null,
          "M2_secondary": null,
          "M3_tertiary": null
        },
        "max_chief_ray_incidence_deg": null,
        "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": 0.588235294,
        "centroided_rms_spot_um": 2294.332038156,
        "geo_ee80_radius_um": 2520.627873423,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 2.366963013,
        "chief_ray_incidence_deg": {
          "M1_primary": 27.190036615,
          "M2_secondary": 66.922699024,
          "M3_tertiary": 26.25445079
        },
        "max_chief_ray_incidence_deg": 66.922699024,
        "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": 0.235294118,
        "centroided_rms_spot_um": 2249.253578284,
        "geo_ee80_radius_um": 2450.757350672,
        "ensquared_2px_fraction": 0.0,
        "ensquared_16px_fraction": 0.0,
        "best_focus_offset_mm": 4.40143145,
        "chief_ray_incidence_deg": {
          "M1_primary": null,
          "M2_secondary": null,
          "M3_tertiary": null
        },
        "max_chief_ray_incidence_deg": null,
        "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": 0.529411765,
      "x_mid_pos": 0.529411765,
      "x_edge_pos": 0.529411765,
      "x_mid_neg": 0.529411765,
      "x_edge_neg": 0.529411765,
      "y_mid_pos": 0.647058824,
      "y_edge_pos": 0.647058824,
      "y_mid_neg": 0.529411765,
      "y_edge_neg": 0.235294118,
      "corner_pp": 0.588235294,
      "corner_pn": 0.235294118,
      "corner_np": 0.588235294,
      "corner_nn": 0.235294118
    },
    "minimum_measured_throughput": 0.235294118,
    "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": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "y_edge_neg": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "corner_pp": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "corner_pn": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "corner_np": "aggregate trace loss or self-obstruction; individual surface not isolated",
      "corner_nn": "aggregate trace loss or self-obstruction; individual surface not isolated"
    },
    "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,
        16.704021458,
        -26.024759467
      ],
      "normal": [
        0.0,
        -0.851404992,
        0.524508856
      ],
      "x_axis": [
        0.0,
        0.524508856,
        0.851404992
      ],
      "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": 1356.008324591,
      "x_mid_pos": 1382.025069265,
      "x_edge_pos": 2007.953846799,
      "x_mid_neg": 1382.025069265,
      "x_edge_neg": 2007.953846799,
      "y_mid_pos": 2035.7817121,
      "y_edge_pos": 2241.201278304,
      "y_mid_neg": 2205.396764004,
      "y_edge_neg": 2208.256160117,
      "corner_pp": 2294.332038156,
      "corner_pn": 2249.253578284,
      "corner_np": 2294.332038156,
      "corner_nn": 2249.253578284
    },
    "per_field_energy_2x2": {
      "center": 0.0,
      "x_mid_pos": 0.0,
      "x_edge_pos": 0.0,
      "x_mid_neg": 0.0,
      "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": 0.0,
      "x_edge_pos": 0.0,
      "x_mid_neg": 0.0,
      "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
    },
    "propagation_stops_at_detector": true
  },
  "angle_and_flat_image_evidence": {
    "chief_ray_angles_by_field": {
      "center": {
        "M1_primary": 25.450136156,
        "M2_secondary": 68.383877006,
        "M3_tertiary": 24.570244306
      },
      "x_mid_pos": {
        "M1_primary": 25.470403617,
        "M2_secondary": 68.397600554,
        "M3_tertiary": 24.561841183
      },
      "x_edge_pos": {
        "M1_primary": 25.531105971,
        "M2_secondary": 68.438782138,
        "M3_tertiary": 24.536610562
      },
      "x_mid_neg": {
        "M1_primary": 25.470403617,
        "M2_secondary": 68.397600554,
        "M3_tertiary": 24.561841183
      },
      "x_edge_neg": {
        "M1_primary": 25.531105971,
        "M2_secondary": 68.438782138,
        "M3_tertiary": 24.536610562
      },
      "y_mid_pos": {
        "M1_primary": 26.287171168,
        "M2_secondary": 67.609884883,
        "M3_tertiary": 25.457384386
      },
      "y_edge_pos": {
        "M1_primary": 27.117077953,
        "M2_secondary": 66.868135575,
        "M3_tertiary": 26.287072563
      },
      "y_mid_neg": {
        "M1_primary": 24.60609589,
        "M2_secondary": 69.192528513,
        "M3_tertiary": 23.619569875
      },
      "y_edge_neg": {
        "M1_primary": null,
        "M2_secondary": null,
        "M3_tertiary": null
      },
      "corner_pp": {
        "M1_primary": 27.190036615,
        "M2_secondary": 66.922699024,
        "M3_tertiary": 26.25445079
      },
      "corner_pn": {
        "M1_primary": null,
        "M2_secondary": null,
        "M3_tertiary": null
      },
      "corner_np": {
        "M1_primary": 27.190036615,
        "M2_secondary": 66.922699024,
        "M3_tertiary": 26.25445079
      },
      "corner_nn": {
        "M1_primary": null,
        "M2_secondary": null,
        "M3_tertiary": null
      }
    },
    "fold_or_incidence_angles_by_surface": {
      "M1_primary": 25.450136156,
      "M2_secondary": 60.715850682,
      "M3_tertiary": 32.23827063
    },
    "maximum_surface_tip_parameter_deg": 60.715850682,
    "maximum_chief_ray_incidence_deg": 69.192528513,
    "best_focus_offset_by_field_mm": {
      "center": 1.278142048,
      "x_mid_pos": 1.270556553,
      "x_edge_pos": -0.518100266,
      "x_mid_neg": 1.270556553,
      "x_edge_neg": -0.518100266,
      "y_mid_pos": 0.398762771,
      "y_edge_pos": 1.845708865,
      "y_mid_neg": 4.397740115,
      "y_edge_neg": 4.357400534,
      "corner_pp": 2.366963013,
      "corner_pn": 4.40143145,
      "corner_np": 2.366963013,
      "corner_nn": 4.40143145
    },
    "best_fit_focus_spread_um": 4919.531715199,
    "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": "fail",
      "requirement": "100.0 mm target within 5%",
      "measured": 94.439226851
    },
    {
      "key": "no_vignetting",
      "verdict": "fail",
      "requirement": ">=0.90 unobscured throughput in every field",
      "measured": 0.235294118
    },
    {
      "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": 2294.332038156
    },
    {
      "key": "chief_ray_angle_reporting",
      "verdict": "fail",
      "requirement": "chief-ray incidence reported at every reflective surface for every field",
      "measured": {
        "maximum_deg": 69.192528513,
        "missing_fields": [
          "y_edge_neg",
          "corner_pn",
          "corner_nn"
        ]
      }
    },
    {
      "key": "flat_image",
      "verdict": "fail",
      "requirement": "best-focus spread <= 24.156 um Airy radius",
      "measured": 4919.531715199
    },
    {
      "key": "package_span",
      "verdict": "pass",
      "requirement": "<= 150 mm",
      "measured": 90.0
    },
    {
      "key": "mass_proxy",
      "verdict": "pass",
      "requirement": "<= 2.0 kg",
      "measured": 0.363922359
    }
  ],
  "verdict_record": {
    "verdict": "fail",
    "failed_gates": [
      "plate_scale_efl",
      "no_vignetting",
      "physical_clearance_model",
      "detector_plane_rms",
      "chief_ray_angle_reporting",
      "flat_image"
    ],
    "fallback_target_key": null,
    "next_engineering_action": "Refresh the RFS-065 hard-gated P2 shortlist with this RFS-070 same-target three-mirror result; promote it only if every gate passes."
  }
}