{
 "known": true,
 "known_why": [
  "on NASA's TESS list as TOI 1857.01 (APC)",
  "in SIMBAD as TOI-1857.01 (err)",
  "catalogued variable star nearby: Gaia DR3 1474372117059924992 (ROT), 213\" away",
  "SIMBAD lists TOI-1857.01 also as TOI-1857.01"
 ],
 "known_version": 5,
 "tic": "180652891",
 "version": 3,
 "when": "2026-10-11 17:11",
 "device": "GPU: NVIDIA GeForce RTX 4070 (CUDA, CuPy)",
 "seconds": 23.8,
 "kind": "transit?",
 "sectors": [
  23,
  49,
  76
 ],
 "points": 9426,
 "signal": {
  "P": 0.775994,
  "T0": 1930.680202,
  "dur": 0.05,
  "depth": 0.001566,
  "rp": 9.764821,
  "source": "found here",
  "snr": 84.300056
 },
 "star": {
  "rad": 2.26185,
  "mass": 1.62,
  "teff": 7218.0,
  "logg": 3.93865,
  "abs_g": 1.9798,
  "bp_rp": 0.4218,
  "dist": 314.9808
 },
 "flags": [
  "usp"
 ],
 "best_level": "notable",
 "headline": "Ultra-short-period planet",
 "checks": [
  {
   "id": "microlensing",
   "name": "Microlensing (rogue planet?)",
   "flag": false,
   "level": null,
   "text": "1 brightening(s), none shaped like a one-off lens event.",
   "details": {}
  },
  {
   "id": "superflare",
   "name": "Superflare",
   "flag": false,
   "level": null,
   "text": "1 flare(s) seen (not a Sun-like star).",
   "details": {
    "energy_erg": 2.5331940787040883e+35,
    "n_flares": 1
   }
  },
  {
   "id": "exocomet",
   "name": "Exocomet-shaped dip",
   "flag": false,
   "level": null,
   "text": "No comet-shaped dips.",
   "details": {}
  },
  {
   "id": "habitable",
   "name": "Habitable zone & size",
   "flag": false,
   "level": null,
   "text": "9.8 Earth radii, 33209.0x Earth's sunlight (~3437 K): outside the range the limits cover for liquid water.",
   "details": {
    "insolation_earth": 33209.014745,
    "a_au": 0.01941,
    "teq_k": 3436.752721,
    "rp_earth": 9.764821,
    "teff": 7218.0,
    "hz": null,
    "conservative_hz": false,
    "optimistic_hz": false
   }
  },
  {
   "id": "usp",
   "name": "Ultra-short-period planet",
   "flag": true,
   "level": "notable",
   "text": "One orbit takes 18.6 hours - ultra-short-period planets are found around only ~0.5% of stars (if the signal is a real planet - it hasn't passed the planet check).",
   "details": {
    "period_h": 18.623844
   }
  },
  {
   "id": "ttv",
   "name": "Transit timing (TTV)",
   "flag": false,
   "level": null,
   "text": "37 transits arrive on time (scatter 3.8 min, errors 1.7 min).",
   "details": {
    "n_transits": 37,
    "rms_min": 3.780312,
    "err_min": 1.740096,
    "p": 0.0,
    "periodicity": {
     "period_epochs": 15.486361,
     "fap": 0.567164,
     "freq": 0.064573
    },
    "o_minus_c_min": [
     -3.473272,
     -4.546982,
     -4.528113,
     -0.561823,
     3.044467,
     -2.709244,
     -5.222954,
     6.303336,
     2.349625,
     -11.273767,
     4.578812,
     2.431392,
     -7.636029,
     3.170261,
     -1.14345,
     -2.57716,
     3.90913,
     0.613888,
     0.260178,
     6.386467,
     -2.607243,
     -4.723215,
     -3.636925,
     -1.830636,
     -2.904346,
     -0.378056,
     0.708233,
     2.514523,
     1.800813,
     -4.672897,
     -1.066608,
     1.459682,
     1.105972,
     -1.351131,
     1.175158,
     0.461448,
     4.067738
    ],
    "epochs": [
     916.0,
     917.0,
     920.0,
     921.0,
     922.0,
     923.0,
     924.0,
     925.0,
     926.0,
     935.0,
     937.0,
     939.0,
     941.0,
     942.0,
     943.0,
     944.0,
     945.0,
     1852.0,
     1853.0,
     1854.0,
     1855.0,
     1862.0,
     1863.0,
     1864.0,
     1865.0,
     1866.0,
     1867.0,
     1868.0,
     1869.0,
     1870.0,
     1871.0,
     1872.0,
     1873.0,
     1883.0,
     1884.0,
     1885.0,
     1886.0
    ]
   }
  },
  {
   "id": "tdv",
   "name": "Transit duration (TDV)",
   "flag": false,
   "level": null,
   "text": "Transit length steady.",
   "details": {
    "p": 0.0,
    "rms_h": 0.158605
   }
  },
  {
   "id": "depth_change",
   "name": "Changing transit depth",
   "flag": false,
   "level": null,
   "text": "Transit depth steady.",
   "details": {
    "p": 0.002014,
    "rel_rms": 0.138837
   }
  },
  {
   "id": "asymmetry",
   "name": "Lopsided transit",
   "flag": false,
   "level": null,
   "text": "The transit is symmetric.",
   "details": {
    "p": 2e-06
   }
  },
  {
   "id": "moon_dip",
   "name": "Dimming beside the transit",
   "flag": false,
   "level": null,
   "text": "No extra dimming beside the transit.",
   "details": {
    "depth_ppm": 50.612906,
    "sigma": 2.696651
   }
  },
  {
   "id": "check_heartbeat_selflensing",
   "name": "heartbeat selflensing",
   "flag": false,
   "level": null,
   "text": "Could not run: OutOfMemoryError: Out of memory allocating 239,983,104 bytes (allocated so far: 2,452,925,952 bytes, limit set to: 2,684,354,560 bytes).",
   "details": {}
  },
  {
   "id": "host",
   "name": "Type of star",
   "flag": false,
   "level": null,
   "text": "From Gaia: main sequence.",
   "details": {
    "kind": "main sequence"
   }
  },
  {
   "id": "check_more_signals",
   "name": "more signals",
   "flag": false,
   "level": null,
   "text": "Could not run: OutOfMemoryError: Out of memory allocating 115,597,824 bytes (allocated so far: 2,629,031,936 bytes, limit set to: 2,684,354,560 bytes).",
   "details": {}
  }
 ],
 "plot": "10_rare_check.png"
}