Total Reductions to Date: 1

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 32.782085 decimal
DEC 2.4181937 decimal
Host Star Metallicity 0.24 0.12 Patel & Espinoza 2022
Host Star log(g) 4.6 0.04 Log10(cgs) Patel & Espinoza 2022
Host Star Radius [R_Sun] 0.76 0.03 Sol Patel & Espinoza 2022
Host Star Effective Temperature [K] 4910.0 61.0 K Patel & Espinoza 2022
a/Rs 12.86 0.23 Patel & Espinoza 2022
eccentricity 0.007 Demangeon et al. 2018
inclination [degrees] 89.1 0.6 deg Demangeon et al. 2018
omega [degrees] 0.0 deg Patel & Espinoza 2022
orbital period [days] 3.8361632 1.8e-06 day Patel & Espinoza 2022
Rp 5.72 0.22 R_Earth Demangeon et al. 2018
Rp/Rs 0.0728 0 ExoFOP-TESS TOI
ephemeris [JD] 2459169.86001 0.0003 BJD Patel & Espinoza 2022

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2459169.86001 0.0003 BJD Patel & Espinoza 2022
2458414.13562 0.00025 BJD-TDB Ivshina & Winn 2022
2454677.707 0.002 BJD Demangeon et al. 2018
2459449.900242 0.000593 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0001891
Parameter Value Uncertainty
Am1 1.0083 0.0054
Am2 -0.0058 0.0026
a/Rs 12.99 0.66
Rp/Rs 0.042 0.017
ephemeris [JD] 2459825.823 0.013
eccentricity 0.007
inclination [degrees] 89.1
omega [degrees] 0.0
orbital period [days] 3.8361632
u0 1.9024315333106785
u1 -3.1835882115620087
u2 3.514321863998194
u3 -1.2331651333793876
duration 0.089 0.01
Not included in ephemeris calculations