results

TOI-564 b

Timing Plot

Total Reductions to Date: 3

Date Processed: 09/06/2025 at 07:00:04 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 1.6511533474386606 1.1044270125994364e-06
Ephemeris (BJD_TDB) 2460020.752566592 0.0009180870586397035
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 130.2951535 decimal
DEC -16.0363275 decimal
Host Star Metallicity 0.143 0.076 Kokori et al. 2023
Host Star log(g) 4.364 0.032 Log10(cgs) Kokori et al. 2023
Host Star Radius [R_Sun] 1.088 0.014 Sol Kokori et al. 2023
Host Star Effective Temperature [K] 5640.0 34.0 K Kokori et al. 2023
a/Rs 5.32 1.29 Kokori et al. 2023
eccentricity 0.072 0.083 Kokori et al. 2023
inclination [degrees] 78.38 0.71 deg Kokori et al. 2023
omega [degrees] 94.0 32.0 deg Kokori et al. 2023
orbital period [days] 1.6511442 1.5e-06 day Kokori et al. 2023
Rp 11.43 7.96 R_Earth Davis et al. 2020
Rp/Rs 0.0959 0 Davis et al. 2020
ephemeris [JD] 2458950.80383 0.00032 BJD-TDB Kokori et al. 2023

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2458950.80383 0.00032 BJD-TDB Kokori et al. 2023
2458549.57554 0.00045 BJD Davis et al. 2020
2458518.203428 0.00024898 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0002576
Parameter Value Uncertainty
Am1 1.0704 0.0096
Am2 -0.037 0.024
a/Rs 4.19 3.68
Rp/Rs 0.087 0.054
ephemeris [JD] 2459977.829 0.012
eccentricity 0.072
inclination [degrees] 78.38
omega [degrees] 94.0
orbital period [days] 1.6511442
u0 2.28844398306853
u1 -4.008696691975149
u2 4.2103186550439045
u3 -1.4900658833986493
duration 0 0
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
RJ Johnson R 590.0 nm 810.0 nm
Organization Observer Code Secondary Observers
AAVSO MBEB (collaborate/publish)
Light curve chart for 0003401
Parameter Value Uncertainty
Am1 1.0011 0.0068
Am2 -0.0001 0.0022
a/Rs 5.35 0.2
Rp/Rs 0.191 0.02
ephemeris [JD] 2460020.7635 0.0017
eccentricity 0.072
inclination [degrees] 78.38
omega [degrees] 94.0
orbital period [days] 1.6511442
u0 2.085214974708702
u1 -3.6230824645265702
u2 3.963416250183403
u3 -1.4255487013060302
duration 0.056 0.0057
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
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 MMOD (collaborate/publish)
Light curve chart for 0003490
Parameter Value Uncertainty
Am1 0.9996 0.0024
Am2 0.00063 0.00038
a/Rs 5.93 0.22
Rp/Rs 0.189 0.034
ephemeris [JD] 2460073.582 0.0014
eccentricity 0.072
inclination [degrees] 78.38
omega [degrees] 94.0
orbital period [days] 1.6511442
u0 2.0850108130574143
u1 -3.6225946635887105
u2 3.962964199918492
u3 -1.4253802903344273
duration 0 0
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
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 SMAJA (collaborate/publish) ZMID