results
WASP-127 b
Total Reductions to Date: 3
Date Processed: 09/18/2023 at 00:07:19 (PDT)
Exoplanet Watch Ephemeris
| Parameter | Value | Uncertainty |
|---|---|---|
| Orbital Period (Days) | 4.178063821262711 | 5.859907418476626e-07 |
| Ephemeris (BJD_TDB) | 2460039.6886320855 | 0.0003322244251509887 |
| Time saved (hours) | - |
Assumed Priors
| Parameter | Value | Uncertainty | Units | Reference |
|---|---|---|---|---|
| RA | 160.5587646 | decimal | ||
| DEC | -3.8349989 | decimal | ||
| Host Star Metallicity | -0.193 | 0.014 | Palle et al. 2017 | |
| Host Star log(g) | 4.19 | 0.08 | Log10(cgs) | ExoFOP-TESS TOI |
| Host Star Radius [R_Sun] | 1.33 | 0.03 | Sol | Seidel et al. 2020 |
| Host Star Effective Temperature [K] | 5620.0 | 107.74 | K | ExoFOP-TESS TOI |
| a/Rs | 7.81 | 0.11 | Seidel et al. 2020 | |
| eccentricity | 0.0 | Seidel et al. 2020 | ||
| inclination [degrees] | 87.84 | 0.36 | deg | Seidel et al. 2020 |
| omega [degrees] | 0.0 | deg | Ivshina & Winn 2022 | |
| orbital period [days] | 4.17806476 | 6e-07 | day | Ivshina & Winn 2022 |
| Rp | 14.69 | 0.28 | R_Earth | Seidel et al. 2020 |
| Rp/Rs | 0.101 | 0 | Seidel et al. 2020 | |
| ephemeris [JD] | 2458218.05313 | 0.00012 | BJD-TDB | Ivshina & Winn 2022 |
Previously Published Mid-Transit Times
| Value | Uncertainty | Units | Reference |
|---|---|---|---|
| 2458218.05313 | 0.00012 | BJD-TDB | Ivshina & Winn 2022 |
| 2456776.62124 | 0.00023 | BJD | Seidel et al. 2020 |
| 2460010.43825 | 0.00073 | BJD | ExoFOP-TESS TOI |
| 2457808.60283 | 0.00031 | BJD-TDB | Palle et al. 2017 |
| 2457248.74131 | 0.00016 | BJD | Lam et al. 2017 |
Observations
| Parameter | Value | Uncertainty |
|---|---|---|
| Am1 | 1.2164 | 0.008 |
| Am2 | -0.1074 | 0.0068 |
| a/Rs | 7.26 | 0.28 |
| Rp/Rs | 0.121 | 0.015 |
| ephemeris [JD] | 2459972.8372 | 0.0062 |
| eccentricity | 0.0 | |
| inclination [degrees] | 87.84 | |
| omega [degrees] | 0.0 | |
| orbital period [days] | 4.17806476 | |
| u0 | 1.9539409733755067 | |
| u1 | -3.5259808552457796 | |
| u2 | 4.072861293323512 | |
| u3 | -1.5008213507628767 | |
| duration | 0.2 | 0.0084 |
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 | NANF (collaborate/publish) |
| Parameter | Value | Uncertainty |
|---|---|---|
| Am1 | 0.961 | 0.017 |
| Am2 | 0.0294 | 0.0041 |
| a/Rs | 8.34 | 0.31 |
| Rp/Rs | 0.066 | 0.014 |
| ephemeris [JD] | 2460018.788 | 0.011 |
| eccentricity | 0.0 | |
| inclination [degrees] | 87.84 | |
| omega [degrees] | 0.0 | |
| orbital period [days] | 4.17806476 | |
| u0 | 1.9540480752805753 | |
| u1 | -3.5259372246491405 | |
| u2 | 4.072444475868649 | |
| u3 | -1.5005552658159331 | |
| duration | 0.1601 | 0.0081 |
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 | NANF (collaborate/publish) |
| Parameter | Value | Uncertainty |
|---|---|---|
| Am1 | 0.9862 | 0.0046 |
| Am2 | 0.0055 | 0.0019 |
| a/Rs | 8.34 | 0.32 |
| Rp/Rs | 0.086 | 0.013 |
| ephemeris [JD] | 2460039.6978 | 0.0046 |
| eccentricity | 0.0 | |
| inclination [degrees] | 87.84 | |
| omega [degrees] | 0.0 | |
| orbital period [days] | 4.17806476 | |
| u0 | 2.068027818605149 | |
| u1 | -3.589020950098345 | |
| u2 | 3.96047399311999 | |
| u3 | -1.4394808026111323 | |
| duration | 0.1053 | 0.0058 |
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 | PJEG (collaborate/publish) |
