results
TOI-1811 b


Total Reductions to Date: 16
Date Processed: 02/18/2025 at 07:00:04 (PST)
Exoplanet Watch Ephemeris
Parameter | Value | Uncertainty |
---|---|---|
Orbital Period (Days) | 3.713065873124246 | 1.0382004139835867e-06 |
Ephemeris (BJD_TDB) | 2460440.7938550203 | 0.00030273917386076596 |
Assumed Priors
Parameter | Value | Uncertainty | Units | Reference |
---|---|---|---|---|
RA | 188.9223576 | decimal | ||
DEC | 27.2143766 | decimal | ||
Host Star Metallicity | 0.306 | 0.076 | Rodriguez et al. 2023 | |
Host Star log(g) | 4.58 | 0.02 | Log10(cgs) | Rodriguez et al. 2023 |
Host Star Radius [R_Sun] | 0.77 | 0.02 | Sol | Rodriguez et al. 2023 |
Host Star Effective Temperature [K] | 4766.0 | 52.0 | K | Rodriguez et al. 2023 |
a/Rs | 12.28 | 0.27 | Rodriguez et al. 2023 | |
eccentricity | 0.052 | 0.062 | Rodriguez et al. 2023 | |
inclination [degrees] | 86.48 | 0.15 | deg | Rodriguez et al. 2023 |
omega [degrees] | 21.0 | 57.0 | deg | Rodriguez et al. 2023 |
orbital period [days] | 3.7130765 | 1.7e-06 | day | Rodriguez et al. 2023 |
Rp | 11.14 | 0.28 | R_Earth | Rodriguez et al. 2023 |
Rp/Rs | 0.1327 | 0 | Rodriguez et al. 2023 | |
ephemeris [JD] | 2459126.36846 | 0.00017 | BJD-TDB | Rodriguez et al. 2023 |
Previously Published Mid-Transit Times
Value | Uncertainty | Units | Reference |
---|---|---|---|
2459126.36846 | 0.00017 | BJD-TDB | Rodriguez et al. 2023 |
2459661.050292 | 0.000236 | BJD | ExoFOP-TESS TOI |
Observations

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 0.979 | 0.02 |
Am2 | 0.0162 | 0.0055 |
a/Rs | 10.95 | 0.66 |
Rp/Rs | 0.149 | 0.017 |
ephemeris [JD] | 2460028.635 | 0.005 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.7355583491126814 | |
u1 | -3.0029265948119632 | |
u2 | 3.458233095384843 | |
u3 | -1.1908647981538727 | |
duration | 0.1003 | 0.0087 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
CV | Clear (unfiltered) reduced to V sequence | 350.0 nm | 850.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | PMIF (collaborate/publish) | UNIS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.3386 | 0.0069 |
Am2 | -0.163 | 0.011 |
a/Rs | 11.49 | 0.79 |
Rp/Rs | 0.119 | 0.046 |
ephemeris [JD] | 2460050.921 | 0.011 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.7355162954991326 | |
u1 | -3.002747529289255 | |
u2 | 3.4579417424710166 | |
u3 | -1.1907104571535472 | |
duration | 0.089 | 0.011 |
Not included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
CV | MObs CV | 350.0 nm | 850.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | MBEB (collaborate/publish) |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 0.9839 | 0.006 |
Am2 | 0.0117 | 0.0059 |
a/Rs | 12.55 | 0.46 |
Rp/Rs | 0.1491 | 0.0068 |
ephemeris [JD] | 2460091.7635 | 0.0016 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.90166833815455 | |
u1 | -3.2110819874636216 | |
u2 | 3.5453466882411573 | |
u3 | -1.235932986102303 | |
duration | 0.0806 | 0.0054 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
RJ | Johnson R | 590.0 nm | 810.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | MBEB (collaborate/publish) |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.095 | 0.018 |
Am2 | -0.075 | 0.015 |
a/Rs | 11.94 | 0.77 |
Rp/Rs | 0.264 | 0.071 |
ephemeris [JD] | 2460310.821 | 0.011 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.4125302873197825 | |
u1 | -2.406325279096979 | |
u2 | 3.0391195919293668 | |
u3 | -1.0453245548657595 | |
duration | 0 | 0 |
Not included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
V | Johnson V | 502.8 nm | 586.8 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | SMAMA (collaborate/publish) | MOBS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.0237 | 0.0082 |
Am2 | -0.023 | 0.015 |
a/Rs | 12.61 | 0.63 |
Rp/Rs | 0.146 | 0.011 |
ephemeris [JD] | 2460321.9796 | 0.0029 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.7356511516101982 | |
u1 | -3.003797306139396 | |
u2 | 3.4594560794597604 | |
u3 | -1.1913098733806495 | |
duration | 0.0791 | 0.0073 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
CV | MObs CV | 350.0 nm | 850.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | OAS (collaborate/publish) | MOBS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.001 | 0.015 |
Am2 | 0.0005 | 0.0039 |
a/Rs | 11.31 | 0.41 |
Rp/Rs | 0.18 | 0.013 |
ephemeris [JD] | 2460336.8348 | 0.0025 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.4124900866466432 | |
u1 | -2.405742445317866 | |
u2 | 3.0381517290603766 | |
u3 | -1.0448993251171652 | |
duration | 0.0994 | 0.0056 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
V | Johnson V | 502.8 nm | 586.8 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | CGIA (collaborate/publish) | MOBS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 0.9466 | 0.0082 |
Am2 | 0.0374 | 0.0083 |
a/Rs | 12.8 | 0.56 |
Rp/Rs | 0.136 | 0.013 |
ephemeris [JD] | 2460362.8157 | 0.003 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.7361062367812397 | |
u1 | -3.0050860100089363 | |
u2 | 3.4611047930024865 | |
u3 | -1.192124968200309 | |
duration | 0.0758 | 0.0063 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
CV | MObs CV | 350.0 nm | 850.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | OAS (collaborate/publish) | MOBS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 0.9847 | 0.0018 |
Am2 | 0.0192 | 0.0027 |
a/Rs | 12.37 | 0.16 |
Rp/Rs | 0.1401 | 0.003 |
ephemeris [JD] | 2460362.82043 | 0.00076 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.4124095880038066 | |
u1 | -2.4057085212662135 | |
u2 | 3.038253296949589 | |
u3 | -1.0449543184136802 | |
duration | 0.0811 | 0.0018 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
V | Johnson V | 502.8 nm | 586.8 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | AKV (collaborate/publish) |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 0.9948 | 0.0067 |
Am2 | 0.0045 | 0.0033 |
a/Rs | 12.76 | 0.35 |
Rp/Rs | 0.1458 | 0.0055 |
ephemeris [JD] | 2460385.0936 | 0.0015 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.8294092366550045 | |
u1 | -3.1910370634238925 | |
u2 | 3.612582383584708 | |
u3 | -1.2509545029841478 | |
duration | 0.0777 | 0.0039 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
NA | Custom | 400.0 nm | 900.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | KRYE (collaborate/publish) | UNIS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 0.987 | 0.011 |
Am2 | 0.013 | 0.01 |
a/Rs | 11.87 | 0.59 |
Rp/Rs | 0.1364 | 0.0085 |
ephemeris [JD] | 2460385.0927 | 0.0027 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.8295789777630798 | |
u1 | -3.1913838021621475 | |
u2 | 3.6129043765587814 | |
u3 | -1.2510994983232435 | |
duration | 0.0864 | 0.0074 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
NA | Custom | 400.0 nm | 900.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | FKEA (collaborate/publish) | UNIS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 0.9804 | 0.0077 |
Am2 | 0.02 | 0.26 |
a/Rs | 13.25 | 0.77 |
Rp/Rs | 0.12 | 0.051 |
ephemeris [JD] | 2460385.1055 | 0.0095 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.8293316072984511 | |
u1 | -3.1910213457881933 | |
u2 | 3.612552805810666 | |
u3 | -1.2508630134896919 | |
duration | 0 | 0 |
Not included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
NA | Custom | 400.0 nm | 900.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | OTAA (collaborate/publish) | UNIS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.0664 | 0.0082 |
Am2 | -0.058 | 0.016 |
a/Rs | 11.46 | 0.27 |
Rp/Rs | 0.1762 | 0.0066 |
ephemeris [JD] | 2460388.8125 | 0.0014 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.9014974847825203 | |
u1 | -3.210625686650968 | |
u2 | 3.544840110389578 | |
u3 | -1.2357118556988964 | |
duration | 0.0967 | 0.0035 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
RJ | Johnson R | 590.0 nm | 810.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | MBEB (collaborate/publish) |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 0.9753 | 0.0065 |
Am2 | 0.0196 | 0.0047 |
a/Rs | 12.42 | 0.31 |
Rp/Rs | 0.1384 | 0.0075 |
ephemeris [JD] | 2460403.6666 | 0.0015 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.4594081467621185 | |
u1 | -2.489990165750258 | |
u2 | 3.0983758277439146 | |
u3 | -1.0677937625863771 | |
duration | 0.0804 | 0.0036 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
NA | Custom | 420.0 nm | 685.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | FMAN (collaborate/publish) |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.0078 | 0.0038 |
Am2 | -0.0059 | 0.006 |
a/Rs | 12.24 | 0.13 |
Rp/Rs | 0.1383 | 0.0026 |
ephemeris [JD] | 2460433.36599 | 0.00052 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.7015119622153994 | |
u1 | -2.858370545277535 | |
u2 | 3.3243484726205916 | |
u3 | -1.1674898400218034 | |
duration | 0.0825 | 0.0016 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
R | Cousins R | 561.7 nm | 719.7 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | KADB (collaborate/publish) | PERC |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.0137 | 0.006 |
Am2 | -0.0115 | 0.0037 |
a/Rs | 13.31 | 0.22 |
Rp/Rs | 0.135 | 0.0053 |
ephemeris [JD] | 2460440.7981 | 0.0012 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.7064908266322112 | |
u1 | -2.874840643651291 | |
u2 | 3.342853787242848 | |
u3 | -1.174503920411365 | |
duration | 0.0702 | 0.0025 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
R | Cousins R | 561.7 nm | 719.7 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | RHEC (collaborate/publish) |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.3126 | 0.0087 |
Am2 | -0.14 | 0.012 |
a/Rs | 11.86 | 0.77 |
Rp/Rs | 0.118 | 0.056 |
ephemeris [JD] | 2460466.786 | 0.012 |
eccentricity | 0.052 | |
inclination [degrees] | 86.48 | |
omega [degrees] | 21.0 | |
orbital period [days] | 3.7130765 | |
u0 | 1.7088273509138243 | |
u1 | -2.9131532089359897 | |
u2 | 3.356894817904259 | |
u3 | -1.152568909860463 | |
duration | 0.085 | 0.012 |
Not included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
CV | MObs CV | 350.0 nm | 850.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | MBEB (collaborate/publish) |