results

HAT-P-33 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) 3.474477186349705 1.7211886296692054e-07
Ephemeris (BJD_TDB) 2460020.3627329464 0.00013567581965715062
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 113.1842383 decimal
DEC 33.8350214 decimal
Host Star Metallicity 0.05 0.08 Bonomo et al. 2017
Host Star log(g) 4.14 0.09 Log10(cgs) ExoFOP-TESS TOI
Host Star Radius [R_Sun] 1.637 0.034 Sol Kokori et al. 2023
Host Star Effective Temperature [K] 6446.0 88.0 K Kokori et al. 2023
a/Rs 6.56 0.09 Kokori et al. 2023
eccentricity 0.18 0.11 Bourrier et al. 2023
inclination [degrees] 87.2 0.0 deg Kokori et al. 2023
omega [degrees] 88.0 33.0 deg Bourrier et al. 2023
orbital period [days] 3.47447703 1.8e-07 day Kokori et al. 2023
Rp 19.61 0.81 R_Earth ExoFOP-TESS TOI
Rp/Rs 0.1137 0 ExoFOP-TESS TOI
ephemeris [JD] 2458078.129918 8.8e-05 BJD-TDB Kokori et al. 2023

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2455110.926335 0.00022 BJD, BJD-TDB Bonomo et al. 2017, Hartman et al. 2011
2456601.47713 0.00012 BJD-TDB Kokori et al. 2022
2456636.22232 0.00024 BJD-TDB Ivshina & Winn 2022
2456684.86508 0.00027 BJD-TDB Bourrier et al. 2023
2458078.129918 8.8e-05 BJD-TDB Kokori et al. 2023
2459603.425538 0.0001597 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0002440
Parameter Value Uncertainty
Am1 0.9887 0.0041
Am2 0.0079 0.002
a/Rs 6.28 0.24
Rp/Rs 0.0728 0.0041
ephemeris [JD] 2459971.7089 0.0034
eccentricity 0.18
inclination [degrees] 87.2
omega [degrees] 88.0
orbital period [days] 3.47447703
u0 2.5222624591893137
u1 -4.541442497466571
u2 4.68328692808211
u3 -1.6641068200184383
duration 0.1541 0.0064
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 0003007
Parameter Value Uncertainty
Am1 1.0004 0.003
Am2 -0.00132 0.00073
a/Rs 6.1103 0.007
Rp/Rs 0.1008 0.0015
ephemeris [JD] 2460013.41346 0.0009
eccentricity 0.18
inclination [degrees] 87.2
omega [degrees] 88.0
orbital period [days] 3.47447703
u0 2.327609649569828
u1 -4.199297646627429
u2 4.507727511068633
u3 -1.6360394468406572
duration 0.16321 0.00032
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 KADB (collaborate/publish) PERC
Light curve chart for 0003008
Parameter Value Uncertainty
Am1 0.9953 0.0029
Am2 0.0024 0.00051
a/Rs 6.1102 0.0057
Rp/Rs 0.0966 0.0013
ephemeris [JD] 2460020.3654 0.0014
eccentricity 0.18
inclination [degrees] 87.2
omega [degrees] 88.0
orbital period [days] 3.47447703
u0 2.3284836683809873
u1 -4.202642405439367
u2 4.512183658284424
u3 -1.6380248539892674
duration 0.16265 0.00028
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 KADB (collaborate/publish) PERC