{
 "known": true,
 "known_why": [
  "the catalogued variable Gaia DR3 1696953127817623808 (E, 55\" away) has the same period - its light leaks into TESS's big pixels"
 ],
 "known_version": 5,
 "tic": "219733554",
 "version": 3,
 "when": "2026-10-11 16:56",
 "device": "GPU: NVIDIA GeForce RTX 4070 (CUDA, CuPy)",
 "seconds": 170.2,
 "kind": "transit?",
 "sectors": [
  14,
  15,
  16,
  20,
  21,
  22,
  23,
  40,
  41,
  47,
  48,
  49,
  53,
  56,
  60,
  74,
  75,
  76,
  80,
  83
 ],
 "points": 94077,
 "signal": {
  "P": 1.391319,
  "T0": 1684.814021,
  "dur": 0.08,
  "depth": 0.019811,
  "rp": 17.198952,
  "source": "found here",
  "snr": 277.53777
 },
 "star": {
  "rad": 1.12001,
  "mass": 1.05,
  "teff": 5814.0,
  "logg": 4.36081,
  "abs_g": 4.444,
  "bp_rp": 0.8265,
  "dist": 663.2367
 },
 "flags": [
  "boyajian"
 ],
 "best_level": "candidate",
 "headline": "Irregular deep dimming",
 "checks": [
  {
   "id": "microlensing",
   "name": "Microlensing (rogue planet?)",
   "flag": false,
   "level": null,
   "text": "3 brightening(s), none shaped like a one-off lens event.",
   "details": {}
  },
  {
   "id": "exocomet",
   "name": "Exocomet-shaped dip",
   "flag": false,
   "level": null,
   "text": "Asymmetric dip, but too deep for a comet.",
   "details": {
    "t_btjd": 3359.56359,
    "depth": 0.022631,
    "n": 1
   }
  },
  {
   "id": "boyajian",
   "name": "Irregular deep dimming",
   "flag": true,
   "level": "candidate",
   "text": "5 deep dips at irregular times, depths from 1.5% to 3.2%. Not periodic and not a young star - like Boyajian's star ('Tabby's star'), one of the strangest stars known.",
   "details": {
    "n_dips": 5,
    "times": [
     3341.71359,
     3356.59359,
     3359.56359,
     3488.35359,
     3490.39359
    ],
    "depths": [
     0.032021,
     0.017232,
     0.015965,
     0.018857,
     0.014539
    ]
   }
  },
  {
   "id": "habitable",
   "name": "Habitable zone & size",
   "flag": false,
   "level": null,
   "text": "17.2 Earth radii, 2101.2x Earth's sunlight (~1724 K): too hot for liquid water.",
   "details": {
    "insolation_earth": 2101.183297,
    "a_au": 0.024791,
    "teq_k": 1723.654718,
    "rp_earth": 17.198952,
    "teff": 5814.0,
    "hz": {
     "recent_venus": 1.783291,
     "runaway": 1.111547,
     "max_greenhouse": 0.3581,
     "early_mars": 0.321888
    },
    "conservative_hz": false,
    "optimistic_hz": false
   }
  },
  {
   "id": "ttv",
   "name": "Transit timing (TTV)",
   "flag": false,
   "level": null,
   "text": "208 transits arrive on time (scatter 7.7 min, errors 2.7 min).",
   "details": {
    "n_transits": 208,
    "rms_min": 7.742536,
    "err_min": 2.689556,
    "p": 0.0,
    "periodicity": {
     "period_epochs": 19.828264,
     "fap": 0.308458,
     "freq": 0.050433
    },
    "o_minus_c_min": [
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     -6.084088,
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     -2.049453,
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     -3.198818,
     4.866499,
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     1.414452,
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     1.047934,
     -1.250796,
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     -2.1169,
     17.468418,
     -0.386265,
     8.255053,
     1.92037,
     13.441688,
     -25.721042,
     -7.287725,
     4.233593,
     -13.62109,
     2.508228,
     -0.946455,
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     10.341411,
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     13.811904,
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     3.584876,
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     1.863463,
     -5.623219,
     5.322098,
     -1.012584,
     9.356733,
     22.030051,
     14.543368,
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     3.080021,
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     2.507973,
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     15.763878,
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     -3.814852,
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    "epochs": [
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     536.0,
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     644.0,
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     913.0,
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     915.0,
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     1184.0,
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     1186.0,
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     1188.0,
     1189.0,
     1190.0,
     1194.0,
     1195.0,
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     1198.0,
     1199.0,
     1200.0,
     1204.0,
     1205.0,
     1207.0,
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     1209.0,
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     1350.0,
     1351.0,
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     1361.0,
     1362.0,
     1363.0,
     1364.0,
     1365.0
    ]
   }
  },
  {
   "id": "tdv",
   "name": "Transit duration (TDV)",
   "flag": false,
   "level": null,
   "text": "Transit length steady.",
   "details": {
    "p": 0.0,
    "rms_h": 0.219834
   }
  },
  {
   "id": "depth_change",
   "name": "Changing transit depth",
   "flag": false,
   "level": null,
   "text": "Transit depth steady.",
   "details": {
    "p": 0.0,
    "rel_rms": 0.135451
   }
  },
  {
   "id": "asymmetry",
   "name": "Lopsided transit",
   "flag": false,
   "level": null,
   "text": "The transit is symmetric.",
   "details": {
    "p": 0.163151
   }
  },
  {
   "id": "moon_dip",
   "name": "Dimming beside the transit",
   "flag": false,
   "level": null,
   "text": "No extra dimming beside the transit.",
   "details": {
    "depth_ppm": 411.288149,
    "sigma": 4.784499
   }
  },
  {
   "id": "more_planets",
   "name": "More planets in the system",
   "flag": false,
   "level": null,
   "text": "No other repeating dips (searched 400,000 periods from 0.3 to 100 days in 46 s on the GPU).",
   "details": {
    "n_periods": 400000
   }
  },
  {
   "id": "self_lensing",
   "name": "Self-lensing binary",
   "flag": false,
   "level": null,
   "text": "No repeating brief brightenings.",
   "details": {}
  },
  {
   "id": "host",
   "name": "Type of star",
   "flag": false,
   "level": null,
   "text": "From Gaia: main sequence.",
   "details": {
    "kind": "main sequence"
   }
  }
 ],
 "plot": "10_rare_check.png"
}