results
NGTS-5 b


Total Reductions to Date: 6
Date Processed: 09/24/2023 at 00:07:22 (PDT)
Exoplanet Watch Ephemeris
Parameter | Value | Uncertainty |
---|---|---|
Orbital Period (Days) | 3.356992262095524 | 1.4740292411618609e-06 |
Ephemeris (BJD_TDB) | 2459714.2640699614 | 0.0008234942834489626 |
Time saved (hours) | 0.0004 |
Assumed Priors
Parameter | Value | Uncertainty | Units | Reference |
---|---|---|---|---|
RA | 221.0582692 | decimal | ||
DEC | 5.6053735 | decimal | ||
Host Star Metallicity | 0.12 | 0.1 | Eigmüller et al. 2019 | |
Host Star log(g) | 4.52 | 0.04 | Log10(cgs) | Eigmüller et al. 2019 |
Host Star Radius [R_Sun] | 0.74 | 0.01 | Sol | Eigmüller et al. 2019 |
Host Star Effective Temperature [K] | 4987.0 | 41.0 | K | Eigmüller et al. 2019 |
a/Rs | 11.111 | 0.315 | Eigmüller et al. 2019 | |
eccentricity | 0.0 | Eigmüller et al. 2019 | ||
inclination [degrees] | 86.6 | 0.2 | deg | Eigmüller et al. 2019 |
omega [degrees] | 0.0 | deg | Eigmüller et al. 2019 | |
orbital period [days] | 3.3569866 | 2.6e-06 | day | Eigmüller et al. 2019 |
Rp | 12.73 | 0.26 | R_Earth | Eigmüller et al. 2019 |
Rp/Rs | 0.162 | 0 | ExoFOP-TESS TOI | |
ephemeris [JD] | 2457740.35262 | 0.00026 | BJD-TDB | Eigmüller et al. 2019 |
Previously Published Mid-Transit Times
Value | Uncertainty | Units | Reference |
---|---|---|---|
2457740.35262 | 0.00026 | BJD-TDB | Eigmüller et al. 2019 |
2459714.264611 | 0.008683 | BJD | ExoFOP-TESS TOI |
Observations

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.185 | 0.06 |
Am2 | -0.092 | 0.032 |
a/Rs | 12.66 | 0.91 |
Rp/Rs | 0.173 | 0.087 |
ephemeris [JD] | 2459341.656 | 0.012 |
eccentricity | 0.0 | |
inclination [degrees] | 86.6 | |
omega [degrees] | 0.0 | |
orbital period [days] | 3.3569866 | |
u0 | 1.458081156716191 | |
u1 | -2.492195636143261 | |
u2 | 3.1659400867422876 | |
u3 | -1.131825560139034 | |
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 | GTAA (collaborate/publish) | MOBS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.216 | 0.04 |
Am2 | -0.175 | 0.02 |
a/Rs | 9.55 | 0.91 |
Rp/Rs | 0.188 | 0.08 |
ephemeris [JD] | 2459371.84 | 0.011 |
eccentricity | 0.0 | |
inclination [degrees] | 86.6 | |
omega [degrees] | 0.0 | |
orbital period [days] | 3.3569866 | |
u0 | 1.4578058507174356 | |
u1 | -2.491938371623185 | |
u2 | 3.166080518272281 | |
u3 | -1.1319479501882554 | |
duration | 0.116 | 0.016 |
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 | SGGB (collaborate/publish) | MOBS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.239 | 0.03 |
Am2 | -0.183 | 0.066 |
a/Rs | 12.68 | 0.87 |
Rp/Rs | 0.126 | 0.046 |
ephemeris [JD] | 2459663.897 | 0.01 |
eccentricity | 0.0 | |
inclination [degrees] | 86.6 | |
omega [degrees] | 0.0 | |
orbital period [days] | 3.3569866 | |
u0 | 1.4578644740257218 | |
u1 | -2.4917764182881643 | |
u2 | 3.1659864013982046 | |
u3 | -1.1320744099588884 | |
duration | 0.071 | 0.01 |
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 | ITYA (collaborate/publish) | MOBS |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 2.41 | 1.19 |
Am2 | -0.69 | 0.52 |
a/Rs | 9.65 | 0.92 |
Rp/Rs | 0.324 | 0.092 |
ephemeris [JD] | 2459737.739 | 0.012 |
eccentricity | 0.0 | |
inclination [degrees] | 86.6 | |
omega [degrees] | 0.0 | |
orbital period [days] | 3.3569866 | |
u0 | 2.096577396028014 | |
u1 | -3.609910166983217 | |
u2 | 3.862465617502275 | |
u3 | -1.3491327889918487 | |
duration | 0.13 | 0.015 |
Not included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
CBB | Astrodon ExoPlanet-BB | 500.0 nm | 1000.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
AAVSO | LPAC (collaborate/publish) |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 1.0005 | 0.0077 |
Am2 | 0 | |
a/Rs | 11.16 | 0.3 |
Rp/Rs | 0.1549 | 0.0052 |
ephemeris [JD] | 2459700.8354 | 0.0015 |
eccentricity | 0.0 | |
inclination [degrees] | 86.6 | |
omega [degrees] | 0.0 | |
orbital period [days] | 3.3569866 | |
u0 | 2.2997971056579347 | |
u1 | -3.949976952464743 | |
u2 | 4.049063845021668 | |
u3 | -1.3988839378791074 | |
duration | 0.0913 | 0.0037 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
I | Cousins I | 721.0 nm | 875.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
EPW | TESS (collaborate/publish) |

Parameter | Value | Uncertainty |
---|---|---|
Am1 | 0.9991 | 0.0054 |
Am2 | 0 | |
a/Rs | 11.18 | 0.2 |
Rp/Rs | 0.1534 | 0.0037 |
ephemeris [JD] | 2459704.1934 | 0.001 |
eccentricity | 0.0 | |
inclination [degrees] | 86.6 | |
omega [degrees] | 0.0 | |
orbital period [days] | 3.3569866 | |
u0 | 2.3001582562654597 | |
u1 | -3.9510931470433377 | |
u2 | 4.050516172533999 | |
u3 | -1.3995812213987269 | |
duration | 0.0901 | 0.0026 |
Included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter | Detail | Min | Max |
---|---|---|---|
I | Cousins I | 721.0 nm | 875.0 nm |
Organization | Observer Code | Secondary Observers |
---|---|---|
EPW | TESS (collaborate/publish) |