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WASP-28 b

View target in exoplanet catalog
chart

Total Reductions to Date: 6

Date Processed: 09/18/2023 at 00:07:19 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 3.408836338541171 3.914983418438388e-07
Ephemeris (BJD_TDB) 2459466.22970753 0.00020991339961867753
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 353.6162694 decimal
DEC -1.5799849 decimal
Host Star Metallicity -0.29 0.1 Kokori et al. 2022
Host Star log(g) 4.37 0.02 Log10(cgs) Kokori et al. 2022
Host Star Radius [R_Sun] 1.09 0.03 Sol Kokori et al. 2022
Host Star Effective Temperature [K] 6150.0 140.0 K Kokori et al. 2022
a/Rs 8.859 0.067 Maciejewski et al. 2016
eccentricity 0.0 Močnik et al. 2020
inclination [degrees] 88.514 0.09 deg Močnik et al. 2020
omega [degrees] 0.0 deg Ivshina & Winn 2022
orbital period [days] 3.40883458 4.1e-07 day Ivshina & Winn 2022
Rp 13.66 0.31 R_Earth Močnik et al. 2020
Rp/Rs 0.1157 0 Močnik et al. 2020
ephemeris [JD] 2456933.46456 0.00013 BJD-TDB Ivshina & Winn 2022

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2455290.4056550004 0.0005250000000000001 BJD-TDB, nan Bonomo et al. 2017, Maciejewski et al. 2016, Anderson et al. 2015, Petrucci et al. 2015
2456933.46456 0.00013 BJD-TDB Ivshina & Winn 2022
2457642.502126 1.4e-05 BJD Močnik et al. 2020
2457683.40894 3e-05 BJD-TDB Kokori et al. 2022
2459449.184766 0.000563 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0000500
Parameter Value Uncertainty
Am1 14.4 0.1
Am2 -0.128 0.012
a/Rs 8.6 0.19
Rp/Rs 0.111 0.016
ephemeris [JD] 2459128.7574 0.0041
eccentricity 0.0
inclination [degrees] 88.514
omega [degrees] 0.0
orbital period [days] 3.40883458
u0 2.2107732653301806
u1 -3.8080938468799657
u2 4.083801326754903
u3 -1.4864806843517364
duration 0.1379 0.0039
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
SR Sloan r 553.1 nm 693.1 nm
Organization Observer Code Secondary Observers
AAVSO JBEB (collaborate/publish)
Light curve chart for 69850a86cf19bfc5402d8e61e66fea6e
Parameter Value Uncertainty
Am1 1.0017 0.0049
Am2 0
a/Rs 9.191 0.091
Rp/Rs 0.1262 0.002
ephemeris [JD] 2459469.6303 0.0012
eccentricity 0.0
inclination [degrees] 88.514
omega [degrees] 0.0
orbital period [days] 3.40883458
u0 2.811596509716858
u1 -5.052244316946493
u2 4.9661507435726575
u3 -1.7255028623416102
duration 0.1304 0.0014
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
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
EPW TESS (collaborate/publish)
Light curve chart for d1ce9200f8ebe1284f5a2f7c13640dfe
Parameter Value Uncertainty
Am1 1.0 0.0025
Am2 0
a/Rs 8.82 0.12
Rp/Rs 0.1138 0.0016
ephemeris [JD] 2459462.81996 0.00084
eccentricity 0.0
inclination [degrees] 88.514
omega [degrees] 0.0
orbital period [days] 3.40883458
u0 2.8116317840865412
u1 -5.0524450501569
u2 4.966487459007068
u3 -1.725674118930279
duration 0.1348 0.002
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
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
EPW TESS (collaborate/publish)
Light curve chart for d354a4748765950cf716e4e5d3d7c6f8
Parameter Value Uncertainty
Am1 1.0003 0.0024
Am2 0
a/Rs 8.7 0.11
Rp/Rs 0.1147 0.0016
ephemeris [JD] 2459449.18477 0.00085
eccentricity 0.0
inclination [degrees] 88.514
omega [degrees] 0.0
orbital period [days] 3.40883458
u0 2.811593056776372
u1 -5.052120874817125
u2 4.965904479183719
u3 -1.7253765871452225
duration 0.1363 0.0019
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
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
EPW TESS (collaborate/publish)
Light curve chart for d441acb544d1c75cd4c8ac97bd58c655
Parameter Value Uncertainty
Am1 1.0001 0.0024
Am2 0
a/Rs 8.7 0.11
Rp/Rs 0.1139 0.0016
ephemeris [JD] 2459452.59261 0.00085
eccentricity 0.0
inclination [degrees] 88.514
omega [degrees] 0.0
orbital period [days] 3.40883458
u0 2.8121566352607528
u1 -5.0539908469300014
u2 4.9681099440388
u3 -1.726275658338945
duration 0.1363 0.0019
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
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
EPW TESS (collaborate/publish)
Light curve chart for 57f34cc9970484b393b058cdfedcf59e
Parameter Value Uncertainty
Am1 1.0001 0.0028
Am2 0
a/Rs 8.58 0.1
Rp/Rs 0.1161 0.0017
ephemeris [JD] 2459466.2286 0.0011
eccentricity 0.0
inclination [degrees] 88.514
omega [degrees] 0.0
orbital period [days] 3.40883458
u0 2.8120493498795955
u1 -5.053460335422507
u2 4.967293549833623
u3 -1.7258824902722694
duration 0.1385 0.0017
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
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
EPW TESS (collaborate/publish)

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