{
  "name": "SN 2023ixf",
  "coordinate_source": "https://escholarship.org/content/qt77m4j2cn/qt77m4j2cn.pdf",
  "source_coordinates": [
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    54.31165
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      "first_utc": "2023-06-02T21:18:50.790969+00:00",
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      "target_aperture_flux": 630.9444580078125,
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  ],
  "publication_approved": true,
  "method": "Green CFA, exposure normalization, common sky grid, field-star translation fitted with disjoint held-out checks; median field-star flux scale excluding SN region; per-epoch median of validated frames; identical asinh display.",
  "limitations": "Natural camera passband; filter unknown, no matched dark/flat supplied. Host galaxy not subtracted, PSFs not matched; this is an appearance comparison, not calibrated supernova photometry or progenitor detection.",
  "display_noise": 0.03459884226322174,
  "display_scale": 0.10379652678966522,
  "display_high": 2.075930595397949,
  "review": "All three registered epoch stacks visually inspected: clear compact source appears at published SN position in 2023, absent as a comparable bright point in both 2022 stacks; persistent in both 2023 temporal halves. Known supernova recovery, not a new discovery. No progenitor identification or calibrated magnitude.",
  "gif_frames": 3,
  "dates_labels": [
    "24 janvier 2022",
    "10\u201311 mai 2022",
    "2\u20133 juin 2023"
  ],
  "frames_analysed": 267,
  "frames_retained": 233
}