{
 "known": true,
 "known_why": [
  "on NASA's TESS list as CTOI 404804908.01 (PC)",
  "in the TESS eclipsing-binary catalogue (Prsa et al. 2022) as TIC 0404804908",
  "in SIMBAD as HD 269912B (*), 4.2\" away"
 ],
 "known_version": 5,
 "tic": "404804908",
 "version": 3,
 "when": "2026-10-11 18:06",
 "device": "GPU: NVIDIA GeForce RTX 4070 (CUDA, CuPy)",
 "seconds": 547.1,
 "kind": "transit?",
 "sectors": [
  1,
  2,
  4,
  5,
  6,
  7,
  8,
  9,
  11,
  12,
  13,
  27,
  28,
  29,
  30,
  31,
  32,
  33,
  34,
  35,
  36,
  37,
  38
 ],
 "points": 45872,
 "signal": {
  "P": 2.207037,
  "T0": 1326.64583,
  "dur": 0.069167,
  "depth": 0.008046,
  "rp": 9.8,
  "source": "planet check"
 },
 "star": {
  "rad": 1.0,
  "mass": 1.0,
  "teff": 5800.0,
  "logg": 4.4,
  "abs_g": null,
  "bp_rp": null,
  "dist": null
 },
 "flags": [
  "boyajian",
  "more_planets",
  "self_lensing"
 ],
 "best_level": "candidate",
 "headline": "Irregular deep dimming; Another planet in the system; Self-lensing binary",
 "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": "No comet-shaped dips.",
   "details": {}
  },
  {
   "id": "boyajian",
   "name": "Irregular deep dimming",
   "flag": true,
   "level": "candidate",
   "text": "4 deep dips at irregular times, depths from 0.8% to 7.5%. Not periodic and not a young star - like Boyajian's star ('Tabby's star'), one of the strangest stars known.",
   "details": {
    "n_dips": 4,
    "times": [
     2045.56233,
     2047.41233,
     2058.40233,
     2060.10233
    ],
    "depths": [
     0.074678,
     0.016254,
     0.008043,
     0.010727
    ]
   }
  },
  {
   "id": "habitable",
   "name": "Habitable zone & size",
   "flag": false,
   "level": null,
   "text": "9.8 Earth radii, 926.4x Earth's sunlight (~1405 K): too hot for liquid water.",
   "details": {
    "insolation_earth": 926.362477,
    "a_au": 0.033175,
    "teq_k": 1404.52517,
    "rp_earth": 9.8,
    "teff": 5800.0,
    "hz": {
     "recent_venus": 1.780282,
     "runaway": 1.10967,
     "max_greenhouse": 0.357235,
     "early_mars": 0.32111
    },
    "conservative_hz": false,
    "optimistic_hz": false
   }
  },
  {
   "id": "ttv",
   "name": "Transit timing (TTV)",
   "flag": false,
   "level": null,
   "text": "102 transits arrive on time (scatter 3.0 min, errors 1.5 min).",
   "details": {
    "n_transits": 102,
    "rms_min": 2.952238,
    "err_min": 1.462418,
    "p": 0.0,
    "periodicity": {
     "period_epochs": 2.867188,
     "fap": 0.313433,
     "freq": 0.348774
    },
    "o_minus_c_min": [
     3.889018,
     -1.113746,
     1.273818,
     -2.721564,
     -1.238945,
     4.227673,
     4.714291,
     6.683528,
     -4.781854,
     2.676764,
     -1.318618,
     0.141237,
     -1.862145,
     -4.363527,
     -3.378909,
     -1.89629,
     2.064946,
     -2.926436,
     5.030182,
     -0.459199,
     -0.470581,
     -1.987345,
     0.989273,
     -1.014108,
     3.45651,
     3.943128,
     -1.569017,
     -2.078399,
     1.882837,
     1.373455,
     2.346692,
     -2.64469,
     3.817928,
     1.814546,
     0.807165,
     -3.210981,
     0.263637,
     -0.257126,
     -0.766508,
     -3.290653,
     2.175965,
     -1.321417,
     -3.822799,
     -2.351562,
     4.111056,
     -0.880326,
     -1.389708,
     -3.891089,
     -0.416471,
     -1.435235,
     0.545383,
     -2.951998,
     -0.97138,
     -2.974762,
     7.460474,
     -5.996907,
     -3.020289,
     -1.537671,
     -1.051053,
     -4.548435,
     4.902184,
     -1.583198,
     0.39742,
     2.378038,
     -1.617344,
     -1.628725,
     1.834511,
     -4.662253,
     3.294366,
     -0.72378,
     0.260838,
     -3.734543,
     0.736075,
     5.172548,
     3.169166,
     0.169784,
     5.613639,
     1.618257,
     -2.377125,
     -0.894507,
     3.553348,
     1.051966,
     -4.437416,
     0.531203,
     3.983057,
     -3.000325,
     -1.517706,
     0.960912,
     -2.061234,
     -5.060615,
     0.406003,
     0.892621,
     1.854476,
     -0.148906,
     2.329712,
     -5.15167,
     2.295567,
     6.766185,
     -2.707197,
     1.763421,
     -2.231961,
     1.740658
    ],
    "epochs": [
     323.0,
     325.0,
     334.0,
     335.0,
     336.0,
     337.0,
     338.0,
     340.0,
     341.0,
     342.0,
     343.0,
     346.0,
     347.0,
     348.0,
     349.0,
     350.0,
     352.0,
     353.0,
     354.0,
     355.0,
     356.0,
     358.0,
     359.0,
     360.0,
     361.0,
     362.0,
     365.0,
     366.0,
     368.0,
     369.0,
     371.0,
     372.0,
     373.0,
     374.0,
     375.0,
     378.0,
     379.0,
     381.0,
     382.0,
     385.0,
     386.0,
     387.0,
     388.0,
     390.0,
     391.0,
     392.0,
     393.0,
     394.0,
     395.0,
     397.0,
     398.0,
     399.0,
     400.0,
     401.0,
     403.0,
     404.0,
     405.0,
     406.0,
     407.0,
     408.0,
     409.0,
     410.0,
     411.0,
     412.0,
     413.0,
     414.0,
     416.0,
     418.0,
     419.0,
     422.0,
     423.0,
     424.0,
     425.0,
     429.0,
     430.0,
     431.0,
     434.0,
     435.0,
     436.0,
     437.0,
     440.0,
     441.0,
     442.0,
     443.0,
     446.0,
     447.0,
     448.0,
     449.0,
     452.0,
     453.0,
     454.0,
     455.0,
     458.0,
     459.0,
     460.0,
     461.0,
     463.0,
     464.0,
     465.0,
     466.0,
     467.0,
     468.0
    ]
   }
  },
  {
   "id": "tdv",
   "name": "Transit duration (TDV)",
   "flag": false,
   "level": null,
   "text": "Transit length steady.",
   "details": {
    "p": 0.0,
    "rms_h": 0.147522
   }
  },
  {
   "id": "depth_change",
   "name": "Changing transit depth",
   "flag": false,
   "level": null,
   "text": "Transit depth steady.",
   "details": {
    "p": 0.0,
    "rel_rms": 0.128059
   }
  },
  {
   "id": "asymmetry",
   "name": "Lopsided transit",
   "flag": false,
   "level": null,
   "text": "The transit is symmetric.",
   "details": {
    "p": 0.0
   }
  },
  {
   "id": "moon_dip",
   "name": "Dimming beside the transit",
   "flag": false,
   "level": null,
   "text": "No extra dimming beside the transit.",
   "details": {
    "depth_ppm": 116.419248,
    "sigma": 4.797983
   }
  },
  {
   "id": "trojan",
   "name": "Trojan companions (L4/L5)",
   "flag": false,
   "level": null,
   "text": "Nothing at the Trojan points.",
   "details": {
    "z_l4": 0.407027,
    "z_l5": 0.397332
   }
  },
  {
   "id": "more_planets",
   "name": "Another planet in the system",
   "flag": true,
   "level": "candidate",
   "text": "Another set of dips every 3.2246 days (359 ppm, 43 seen, SNR 18.9). Its period is close to a 5:2 ratio with the known one (orbital resonance).",
   "details": {
    "period": 3.224634,
    "t0": 1327.131842,
    "dur": 0.38,
    "depth": 0.000359,
    "snr": 18.901615,
    "sde": 33.414587,
    "n_events": 43
   }
  },
  {
   "id": "self_lensing",
   "name": "Self-lensing binary",
   "flag": true,
   "level": "candidate",
   "text": "Short brightenings repeat every 3.2246 days (590 ppm, 63 seen): a white dwarf (or other compact star) magnifying its companion each time it passes in front - only a handful known.",
   "details": {
    "period": 3.224595,
    "height": 0.00059,
    "snr": 30.293358
   }
  },
  {
   "id": "host",
   "name": "Type of star",
   "flag": false,
   "level": null,
   "text": "From Gaia: unknown.",
   "details": {
    "kind": null
   }
  }
 ],
 "plot": "10_rare_check.png"
}