results
CoRoT-18 b
Total Reductions to Date: 4
Date Processed: 09/18/2023 at 00:07:19 (PDT)
Exoplanet Watch Ephemeris
| Parameter | Value | Uncertainty |
|---|---|---|
| Orbital Period (Days) | 1.9000895267996556 | 2.8385211285474743e-07 |
| Ephemeris (BJD_TDB) | 2459638.728301029 | 0.0006023528374052313 |
| Time saved (hours) | - |
Assumed Priors
| Parameter | Value | Uncertainty | Units | Reference |
|---|---|---|---|---|
| RA | 98.1724172 | decimal | ||
| DEC | -0.0316045 | decimal | ||
| Host Star Metallicity | -0.1 | 0.1 | Patel & Espinoza 2022 | |
| Host Star log(g) | 4.4 | 0.1 | Log10(cgs) | Patel & Espinoza 2022 |
| Host Star Radius [R_Sun] | 1.0 | 0.13 | Sol | Patel & Espinoza 2022 |
| Host Star Effective Temperature [K] | 5440.0 | 100.0 | K | Patel & Espinoza 2022 |
| a/Rs | 7.16 | 0.2 | Patel & Espinoza 2022 | |
| eccentricity | 0.025 | Bonomo et al. 2017 | ||
| inclination [degrees] | 89.9 | 1.6 | deg | Raetz et al. 2019 |
| omega [degrees] | 0.0 | deg | Patel & Espinoza 2022 | |
| orbital period [days] | 1.9000769 | 2.1e-06 | day | Patel & Espinoza 2022 |
| Rp | 12.85 | 0.44 | R_Earth | Raetz et al. 2019 |
| Rp/Rs | 0.1604 | 0 | ExoFOP-TESS TOI | |
| ephemeris [JD] | 2459226.40927 | 0.00061 | BJD | Patel & Espinoza 2022 |
Previously Published Mid-Transit Times
| Value | Uncertainty | Units | Reference |
|---|---|---|---|
| 2455321.7248899997 | 0.0002 | BJD-TDB, HJD | Raetz et al. 2019, Bonomo et al. 2017, Hebrard et al. 2011 |
| 2459203.608483 | 0.001367 | BJD | ExoFOP-TESS TOI |
| 2459226.40927 | 0.00061 | BJD | Patel & Espinoza 2022 |
Observations
| Parameter | Value | Uncertainty |
|---|---|---|
| Am1 | 0.919 | 0.061 |
| Am2 | 0.07 | 0.14 |
| a/Rs | 8.14 | 0.57 |
| Rp/Rs | 0.061 | 0.039 |
| ephemeris [JD] | 2458836.899 | 0.012 |
| eccentricity | 0.025 | |
| inclination [degrees] | 89.9 | |
| omega [degrees] | 0.0 | |
| orbital period [days] | 1.9000769 | |
| u0 | 1.6527185062139371 | |
| u1 | -2.83962141072291 | |
| u2 | 3.4857272637576924 | |
| u3 | -1.2988243073073353 | |
| duration | 0.0745 | 0.0088 |
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 | WTOG (collaborate/publish) | MOBS |
| Parameter | Value | Uncertainty |
|---|---|---|
| Am1 | 0.91 | 0.11 |
| Am2 | 0.077 | 0.085 |
| a/Rs | 8.1 | 0.55 |
| Rp/Rs | 0.32 | 0.096 |
| ephemeris [JD] | 2458874.9099 | 0.0099 |
| eccentricity | 0.025 | |
| inclination [degrees] | 89.9 | |
| omega [degrees] | 0.0 | |
| orbital period [days] | 1.9000769 | |
| u0 | 1.6522864750856758 | |
| u1 | -2.838620715375539 | |
| u2 | 3.4848833291883157 | |
| u3 | -1.2985490369696446 | |
| duration | 0.037 | 0.011 |
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 | SPUA (collaborate/publish) | MOBS |
| Parameter | Value | Uncertainty |
|---|---|---|
| Am1 | 1.104 | 0.042 |
| Am2 | -0.048 | 0.022 |
| a/Rs | 6.16 | 0.16 |
| Rp/Rs | 0.314 | 0.017 |
| ephemeris [JD] | 2459638.7188 | 0.0027 |
| eccentricity | 0.025 | |
| inclination [degrees] | 89.9 | |
| omega [degrees] | 0.0 | |
| orbital period [days] | 1.9000769 | |
| u0 | 2.2954378426157325 | |
| u1 | -4.023695502140275 | |
| u2 | 4.225055219387607 | |
| u3 | -1.4967974969048354 | |
| duration | 0.1206 | 0.0034 |
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 | 0.75 | 0.015 |
| Am2 | 0.181 | 0.044 |
| a/Rs | 8.08 | 0.58 |
| Rp/Rs | 0.083 | 0.038 |
| ephemeris [JD] | 2459900.953 | 0.012 |
| eccentricity | 0.025 | |
| inclination [degrees] | 89.9 | |
| omega [degrees] | 0.0 | |
| orbital period [days] | 1.9000769 | |
| u0 | 2.422970281751321 | |
| u1 | -4.247788899433766 | |
| u2 | 4.3488973882232385 | |
| u3 | -1.5240787057371725 | |
| duration | 0.0811 | 0.0065 |
Not included in ephemeris calculations
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
| Filter | Detail | Min | Max |
|---|---|---|---|
| NA | Custom | 690.0 nm | 819.0 nm |
| Organization | Observer Code | Secondary Observers |
|---|---|---|
| AAVSO | DSCC (collaborate/publish) | BPAG |
