{
  "schema_version": "camera-spectra-application-export-1",
  "profile_id": "manufacturer-curve:zwo-imx174-mono-ambiguous-scale",
  "profile_revision": 1,
  "exports": {
    "xspd": "/application-data/manufacturer-curve-zwo-imx174-mono-ambiguous-scale-r1.xspd",
    "siril": null,
    "metadata": "/application-data/manufacturer-curve-zwo-imx174-mono-ambiguous-scale-r1.metadata.json",
    "xspd_reason": null,
    "siril_reason": "The source does not establish a sensor-only response. A Siril sensor export would misrepresent its physical scope; use CSV or source JSON.",
    "siril_estimated": "/application-data/manufacturer-curve-zwo-imx174-mono-ambiguous-scale-r1.estimated.siril.json",
    "siril_estimated_alternative": null,
    "siril_estimated_reason": null,
    "siril_estimated_note": "Estimated relative photon response. Assumes the source values already describe photon response. Source optics remain unseparated; calibration accuracy is unverified.",
    "notes": []
  },
  "siril_assessment": null,
  "siril_estimate": {
    "primary": {
      "channels": [
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          "wavelengths": [
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          "values": [
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            0.35897429268027825,
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            0.6260687683083533,
            0.6965809756009277,
            0.7649575853786549,
            0.8311960121723887,
            0.8803419024399072,
            0.9123926707120641,
            0.9401709512199535,
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            0.9935893292517393,
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            0.9764954999909508,
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            0.9316233902222728,
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            0.2970083536508117,
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      ],
      "interpretation": "photon_response",
      "basis": "Documented source-quantity evidence (https://i.zwoastro.com/zwo-website/manuals/ZWO_ASIMini_Manual_EN.pdf): The ASI Mini manual page 7 calls this a relative QE curve and labels its vertical axis Quantum Efficiency (%), supporting a photon-response quantity. The relative-QE caption leaves absolute QE amplitude unresolved, and the camera-window contribution is not separated.",
      "metadata": {
        "status": "estimated",
        "original_response_unit": "percent",
        "original_response_scale": "unknown",
        "original_response_scope": "unknown",
        "source_attribution": "ZWO; Mono174 sensor response, ASI Mini manual page 7; manufacturer-curve:zwo-imx174-mono-ambiguous-scale; Mono174 sensor response, ASI Mini manual page 7. ZWO. https://i.zwoastro.com/zwo-website/manuals/ZWO_ASIMini_Manual_EN.pdf; https://i.zwoastro.com/zwo-website/manuals/ZWO_ASIMini_Manual_EN.pdf",
        "source_positive_peak": 77.3554,
        "input_scale_hint": "percent_or_arbitrary",
        "normalization": "one shared positive maximum across all channels",
        "normalization_divisor": 77.3554,
        "method_version": "camera-spectra-siril-estimate-v1",
        "uncertainty": "unknown",
        "effective_camera_detection_model": true,
        "optical_transmission_separated": false,
        "interchannel_scale_comparability": "unknown; channel ratios inherit original possibly incomparable scales",
        "quantity_evidence_uri": "https://i.zwoastro.com/zwo-website/manuals/ZWO_ASIMini_Manual_EN.pdf",
        "retained_channel_intervals_nm": [
          {
            "channel": "mono",
            "minimum": 310,
            "maximum": 1050
          }
        ],
        "repairs": {
          "conflicting_duplicate_groups_merged": 0,
          "identical_duplicate_samples_removed": 0,
          "negative_samples_floored": 0,
          "negative_magnitude_total": 0,
          "bounded_nulls_interpolated": 0,
          "trimmed_null_samples": 0,
          "documented_gap_samples_omitted": 0,
          "partial_channels": []
        }
      }
    },
    "alternative": null,
    "diagnostics": {
      "source_family_prior": "documented-source-quantity",
      "primary_basis": "documented_source_quantity",
      "interpretation_difference_rms": null,
      "comparison_sample_count": 0,
      "comparison_limitations": "sampled-assumption difference only; not uncertainty bounds and excludes optics, gain, and measurement-error uncertainty",
      "observed_channel_diagnostics": [
        {
          "channel": "mono",
          "positive_peak_wavelength_nm": 490,
          "positive_response_centroid_nm": 568.8845108158182,
          "observed_nir_to_visible_mean_ratio": 0.08014380180702618,
          "note": "descriptive numeric summary only; does not identify optical filtering or physical units"
        }
      ]
    }
  },
  "transformations": {
    "xspd": "Longest uninterrupted native run per channel; no interpolation, padding, rescaling or default replacement. Repeated identical wavelength/value pairs removed.",
    "siril": "Source scales and channel grids retained. Pairs sorted by wavelength and repeated identical wavelength/value pairs removed.",
    "siril_estimated": "Derived relative photon-response model with documented source-quantity assumptions, numeric repairs and shared RGB normalization. Original samples and unknown source metadata are preserved separately."
  },
  "compatibility": "Format validation does not establish calibration accuracy or a complete optical response.",
  "original": {
    "id": "zwo-imx174-mono-ambiguous-scale",
    "sensor": {
      "manufacturer": "Sony",
      "model": "IMX174",
      "mode": "mono",
      "compatible_variants": [
        "mono",
        "monochrome",
        "IMX174M",
        "IMX174 mono"
      ]
    },
    "source": {
      "title": "Mono174 sensor response, ASI Mini manual page 7",
      "author": "ZWO",
      "page_url": "https://i.zwoastro.com/zwo-website/manuals/ZWO_ASIMini_Manual_EN.pdf",
      "asset_url": "https://i.zwoastro.com/zwo-website/manuals/ZWO_ASIMini_Manual_EN.pdf",
      "asset_file": "zwo-asi-mini-manual.pdf",
      "scope": "unknown",
      "camera_model": "ASI174MM Mini",
      "asset_sha256": "21ba1639a442c8cd20b7d27d1feb2a6a45026ebb4abf11e54bc0c577c19faa84",
      "retrieved_at": "2026-09-29T22:12:22.124150+00:00"
    },
    "response_unit": "percent",
    "response_scale": "unknown",
    "channels": [
      {
        "channel": "mono",
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        ],
        "values": [
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      }
    ],
    "license_status": "unknown",
    "limitations": [
      "Caption calls this a relative QE curve, while the vertical axis says quantum efficiency (%). The scale is ambiguous and remains unknown.",
      "Published values are preserved on the 0-to-80 axis without normalization or interpretation as measured absolute QE.",
      "The manual does not establish whether the plotted response excludes the camera window or sensor cover glass; source scope remains unknown.",
      "The very low long-wavelength tail can be indistinguishable from the baseline; unobserved pixels remain missing."
    ],
    "digitization": {
      "method": "color-threshold source trace center at nearest pixel columns; rejects isolated pixels and long grid runs; no rescaling, interpolation or extrapolation",
      "script": "scripts/extract-astro-research-curves.py",
      "image_size_px": [
        1191,
        1684
      ],
      "image_sha256": "fa9b0d8b6cdba2ab0e3ce1672712b3c3b27fac67eafc4ce6a1e963345985e35b",
      "pdf_page": 7,
      "axes": {
        "x_pixel": [
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        ],
        "y_pixel": [
          432,
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        ],
        "wavelength_nm": [
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        ],
        "response": [
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        ]
      },
      "sample_step_nm": 10,
      "channels": [
        {
          "channel": "mono",
          "color": "black",
          "threshold": 125,
          "minimum_trace_pixels": 1
        }
      ],
      "maximum_detected_trace_width_px": 7,
      "raster_tolerance_px": 5,
      "wavelength_raster_tolerance_nm": 7.0547,
      "response_raster_tolerance": 1.6529,
      "source_measurement_uncertainty": "unknown"
    }
  }
}