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WASP-98 b

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Total Reductions to Date: 18

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

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 2.9626414837733974 1.6786463695334032e-07
Ephemeris (BJD_TDB) 2459168.6397549002 0.0001266124394918067
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 58.4290113 decimal
DEC -34.3282716 decimal
Host Star Metallicity -0.6 0.19 Kokori et al. 2022
Host Star log(g) 4.58 0.01 Log10(cgs) Kokori et al. 2022
Host Star Radius [R_Sun] 0.7 0.02 Sol Kokori et al. 2022
Host Star Effective Temperature [K] 5525.0 130.0 K Kokori et al. 2022
a/Rs 10.92 0.08 Mancini et al. 2016
eccentricity 0.07 Bonomo et al. 2017
inclination [degrees] 86.3 0.1 deg Bonomo et al. 2017
omega [degrees] 0.0 deg Ivshina & Winn 2022
orbital period [days] 2.96264133 2.9e-07 day Ivshina & Winn 2022
Rp 12.65 0.64 R_Earth ExoFOP-TESS TOI
Rp/Rs 0.1647 0 ExoFOP-TESS TOI
ephemeris [JD] 2458413.16611 0.00013 BJD-TDB Ivshina & Winn 2022

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2456333.391751667 9.400000000000001e-05 BJD-TDB, HJD-UTC Bonomo et al. 2017, Mancini et al. 2016, Hellier et al. 2014
2456840.00365 8e-05 BJD-TDB Kokori et al. 2022
2458413.16611 0.00013 BJD-TDB Ivshina & Winn 2022
2459168.63923 0.000311 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0002893
Parameter Value Uncertainty
Am1 0.87 0.026
Am2 0.047 0.037
a/Rs 10.53 0.23
Rp/Rs 0.275 0.054
ephemeris [JD] 2458534.652 0.01
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 1.736203176366593
u1 -2.8075938283092343
u2 3.338575441924191
u3 -1.2671847402328993
duration 0.0587 0.0092
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
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 YLUA (collaborate/publish) MOBS
Light curve chart for 0000526
Parameter Value Uncertainty
Am1 1.0224 0.0055
Am2 0.07 0.15
a/Rs 10.7 0.22
Rp/Rs 0.182 0.011
ephemeris [JD] 2459156.7907 0.0035
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 1.425658744137796
u1 -2.281051617150378
u2 3.0571232149929384
u3 -1.2017302964256704
duration 0.0668 0.0034
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
SG Sloan g 402.5 nm 551.5 nm
Organization Observer Code Secondary Observers
AAVSO HCHB (collaborate/publish)
Light curve chart for 0002335
Parameter Value Uncertainty
Am1 0.785 0.021
Am2 0.09 0.034
a/Rs 10.58 0.23
Rp/Rs 0.153 0.033
ephemeris [JD] 2459962.6098 0.0077
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.0219058745618246
u1 -3.496100209709122
u2 3.9305118255675406
u3 -1.456317431851053
duration 0.0775 0.0068
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV MObs CV 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO OAS (collaborate/publish) MOBS
Light curve chart for ab8135c2cbd25853cad9b967b2a9dfbb
Parameter Value Uncertainty
Am1 1.001 0.011
Am2 0
a/Rs 10.81 0.13
Rp/Rs 0.1586 0.0032
ephemeris [JD] 2459162.71487 0.00067
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.704014146489282
u1 -4.834559502503439
u2 4.828076186726795
u3 -1.6975307587686963
duration 0.081 0.0015
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 9577316ed0a0d6bb98901d37d436da5a
Parameter Value Uncertainty
Am1 1.0127 0.0045
Am2 0
a/Rs 10.93 0.18
Rp/Rs 0.1554 0.0039
ephemeris [JD] 2458422.05396 0.00092
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.7056860169010166
u1 -4.838060077993157
u2 4.831140479164119
u3 -1.6987663460823743
duration 0.079 0.0021
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 dc95885c0ed2f0d0d01088f9fe379059
Parameter Value Uncertainty
Am1 1.0006 0.0042
Am2 0
a/Rs 10.91 0.18
Rp/Rs 0.1565 0.0038
ephemeris [JD] 2458433.90419 0.00089
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.7050403734910833
u1 -4.836462596871018
u2 4.829563121810485
u3 -1.6981408264644515
duration 0.0797 0.0021
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 0aa86e2f95ee29c68c5cebdab4e091f0
Parameter Value Uncertainty
Am1 1.0 0.0099
Am2 0
a/Rs 10.97 0.14
Rp/Rs 0.1554 0.0032
ephemeris [JD] 2459147.9016 0.00067
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.7037883413201067
u1 -4.834336169432929
u2 4.828066530097014
u3 -1.6975186300403937
duration 0.0789 0.0016
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 4b89693287dc30174abb0b8d9dceb0fa
Parameter Value Uncertainty
Am1 0.9997 0.0039
Am2 0
a/Rs 10.98 0.17
Rp/Rs 0.1598 0.0039
ephemeris [JD] 2458425.01563 0.00086
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.704090709800598
u1 -4.834108833489424
u2 4.827330390015513
u3 -1.6973121943938598
duration 0.079 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 2de32da7c4ce26dbf795dee7939e81e3
Parameter Value Uncertainty
Am1 1.001 0.011
Am2 0
a/Rs 10.87 0.14
Rp/Rs 0.1522 0.0031
ephemeris [JD] 2459144.93841 0.00072
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.7056235666244364
u1 -4.838128674686723
u2 4.831209457927515
u3 -1.6987042778745982
duration 0.0796 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)
Light curve chart for 0f80ba6906817801e47f0dcce747dc24
Parameter Value Uncertainty
Am1 1.0004 0.004
Am2 0
a/Rs 10.78 0.17
Rp/Rs 0.155 0.0035
ephemeris [JD] 2458430.94206 0.00092
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.7054569170496743
u1 -4.8380496070432715
u2 4.831429625411621
u3 -1.6988368634241118
duration 0.081 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 1bd5f3e0cea61dab278787f76c9c7383
Parameter Value Uncertainty
Am1 1.001 0.011
Am2 0
a/Rs 10.84 0.15
Rp/Rs 0.1611 0.0032
ephemeris [JD] 2459168.64007 0.00076
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.7049121765979938
u1 -4.836144012492681
u2 4.829165611581774
u3 -1.6979337037269127
duration 0.081 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)
Light curve chart for 3a16e4b1f7fb5bd16ed122f93ed5fc15
Parameter Value Uncertainty
Am1 1.0001 0.0039
Am2 0
a/Rs 10.83 0.17
Rp/Rs 0.1574 0.0036
ephemeris [JD] 2458416.12815 0.00088
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.704099187388649
u1 -4.833879713141214
u2 4.826635697095774
u3 -1.6968550994207323
duration 0.0807 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 120fcbca572fcee39297f31532fe6068
Parameter Value Uncertainty
Am1 1.0002 0.0039
Am2 0
a/Rs 10.82 0.16
Rp/Rs 0.1536 0.0036
ephemeris [JD] 2458413.16743 0.00084
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.7051066902062555
u1 -4.837099573370547
u2 4.830324963748236
u3 -1.698332008606493
duration 0.08 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 aef0222ed9bd9188b0636b6a3ddd2ca4
Parameter Value Uncertainty
Am1 1.0 0.01
Am2 0
a/Rs 11.01 0.14
Rp/Rs 0.1563 0.0031
ephemeris [JD] 2459153.82759 0.00072
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.7048291125514936
u1 -4.836740755096265
u2 4.830409091163457
u3 -1.6984973766399811
duration 0.0786 0.0016
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 f7ce89be1919e336e99e8b60ff1ee2fd
Parameter Value Uncertainty
Am1 1.001 0.01
Am2 0
a/Rs 10.93 0.15
Rp/Rs 0.1589 0.0029
ephemeris [JD] 2459165.67848 0.00072
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.705074659381793
u1 -4.836330009460853
u2 4.829104125576111
u3 -1.6978487035377925
duration 0.0796 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)
Light curve chart for 968580d8244b09036c1725c94b0c46cf
Parameter Value Uncertainty
Am1 1.001 0.01
Am2 0
a/Rs 11.09 0.14
Rp/Rs 0.1617 0.0028
ephemeris [JD] 2459159.75229 0.00065
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.70387722811279
u1 -4.833846662503891
u2 4.827115432460783
u3 -1.6971459261400557
duration 0.0782 0.0016
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 43a8fb05f2439add9bad4418d46059cb
Parameter Value Uncertainty
Am1 1.0 0.01
Am2 0
a/Rs 11.02 0.15
Rp/Rs 0.1577 0.0031
ephemeris [JD] 2459150.86322 0.00074
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.703912807743221
u1 -4.834212557979684
u2 4.827536706791658
u3 -1.6972368846192931
duration 0.0786 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)
Light curve chart for 38f0399c9bc69995f4c27b5df2f80533
Parameter Value Uncertainty
Am1 1.0 0.0038
Am2 0
a/Rs 10.83 0.17
Rp/Rs 0.1565 0.0037
ephemeris [JD] 2458427.97953 0.0009
eccentricity 0.07
inclination [degrees] 86.3
omega [degrees] 0.0
orbital period [days] 2.96264133
u0 2.705418218319628
u1 -4.837755739810607
u2 4.830885745433397
u3 -1.6985481519566115
duration 0.0807 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)

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