results
K2-141 c
Total Reductions to Date: 3
Date Processed: 09/18/2023 at 00:07:19 (PDT)
Exoplanet Watch Ephemeris
| Parameter | Value | Uncertainty |
|---|---|---|
| Orbital Period (Days) | - | - |
| Ephemeris (BJD_TDB) | - | - |
| Time saved (hours) | - |
Assumed Priors
| Parameter | Value | Uncertainty | Units | Reference |
|---|---|---|---|---|
| RA | 350.9170464 | decimal | ||
| DEC | -1.1891827 | decimal | ||
| Host Star Metallicity | 0.0 | 0.06 | Bonomo et al. 2023 | |
| Host Star log(g) | 4.62 | 0.02 | Log10(cgs) | Malavolta et al. 2018 |
| Host Star Radius [R_Sun] | 0.68 | 0.02 | Sol | Bonomo et al. 2023 |
| Host Star Effective Temperature [K] | 4570.0 | 100.0 | K | Bonomo et al. 2023 |
| a/Rs | 21.59 | 0.71 | Malavolta et al. 2018 | |
| eccentricity | 0.092 | Bonomo et al. 2023 | ||
| inclination [degrees] | 87.2 | 1.6 | deg | Bonomo et al. 2023 |
| omega [degrees] | 90.0 | deg | Malavolta et al. 2018 | |
| orbital period [days] | 7.7485 | 0.00022 | day | Bonomo et al. 2023 |
| Rp | 6.99 | 4.6 | R_Earth | Bonomo et al. 2023 |
| Rp/Rs | 0.0942 | 0 | Bonomo et al. 2023 | |
| ephemeris [JD] | 2457751.1546 | 0.0 | BJD-TDB | Bonomo et al. 2023 |
Previously Published Mid-Transit Times
| Value | Uncertainty | Units | Reference |
|---|---|---|---|
| 2457751.1546 | 0.0005 | BJD-TDB | Bonomo et al. 2023, Malavolta et al. 2018 |
Observations
| Parameter | Value | Uncertainty |
|---|---|---|
| Am1 | 0.9969 | 0.0077 |
| Am2 | 0.0032 | 0.0027 |
| a/Rs | 18.06 | 2.11 |
| Rp/Rs | 0.054 | 0.041 |
| ephemeris [JD] | 2459827.773 | 0.013 |
| eccentricity | 0.092 | |
| inclination [degrees] | 87.2 | |
| omega [degrees] | 90.0 | |
| orbital period [days] | 7.7485 | |
| u0 | 1.7003493890694379 | |
| u1 | -2.9067463591014833 | |
| u2 | 3.367626946347647 | |
| u3 | -1.161229926134049 | |
| duration | 0 | 0 |
Not 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 | MBEB (collaborate/publish) |
| Parameter | Value | Uncertainty |
|---|---|---|
| Am1 | 0.9783 | 0.0043 |
| Am2 | 0.017 | 0.038 |
| a/Rs | 22.8 | 1.85 |
| Rp/Rs | 0.183 | 0.047 |
| ephemeris [JD] | 2459850.9994 | 0.0092 |
| eccentricity | 0.092 | |
| inclination [degrees] | 87.2 | |
| omega [degrees] | 90.0 | |
| orbital period [days] | 7.7485 | |
| u0 | 2.1865505514967536 | |
| u1 | -3.7026971640875592 | |
| u2 | 3.8316013476475628 | |
| u3 | -1.3154546779614478 | |
| duration | 0 | 0 |
Not 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 |
|---|---|---|
| AAVSO | DLMA (collaborate/publish) | RWEA |
| Parameter | Value | Uncertainty |
|---|---|---|
| Am1 | 0.9682 | 0.0075 |
| Am2 | 0.024 | 0.01 |
| a/Rs | 23.28 | 1.97 |
| Rp/Rs | 0.155 | 0.044 |
| ephemeris [JD] | 2460191.9467 | 0.0093 |
| eccentricity | 0.092 | |
| inclination [degrees] | 87.2 | |
| omega [degrees] | 90.0 | |
| orbital period [days] | 7.7485 | |
| u0 | 1.363863411147251 | |
| u1 | -2.2938176838103677 | |
| u2 | 2.944814979609285 | |
| u3 | -1.0148606630650054 | |
| 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 | CCHD (collaborate/publish) |
