results

WASP-103 b

Timing Plot

Total Reductions to Date: 15

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

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 0.9255452532515508 9.189062584317518e-08
Ephemeris (BJD_TDB) 2460174.738179171 0.00029500349896374934
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 249.3148604 decimal
DEC 7.1833758 decimal
Host Star Metallicity 0.06 0.13 Kokori et al. 2023
Host Star log(g) 4.22 0.12 Log10(cgs) Kokori et al. 2023
Host Star Radius [R_Sun] 1.436 0.052 Sol Kokori et al. 2023
Host Star Effective Temperature [K] 6110.0 160.0 K Kokori et al. 2023
a/Rs 3.013 0.017 Kokori et al. 2023
eccentricity 0.15 Bonomo et al. 2017
inclination [degrees] 88.2 1.5 deg Kokori et al. 2023
omega [degrees] 0.0 deg Kokori et al. 2023
orbital period [days] 0.925545386 5.6e-08 day Kokori et al. 2023
Rp 17.13 0.82 R_Earth Bonomo et al. 2017
Rp/Rs 0.1093 0 Addison et al. 2016
ephemeris [JD] 2457308.324538 3e-05 BJD-TDB Kokori et al. 2023

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2457308.324538 3e-05 BJD-TDB Kokori et al. 2023
2457511.944436 7.6e-05 BJD-TDB Ivshina & Winn 2022
2457132.47094 4e-05 BJD-TDB Kokori et al. 2022
2456836.296445 5.5e-05 BJD-TDB Bonomo et al. 2017
2456800.19903 0.00075 HJD Addison et al. 2016
2456459.59957 0.00075 BJD-TDB Gillon et al. 2014

Observations

Light curve chart for 0011227
Parameter Value Uncertainty
Am1 1.0863 0.0041
Am2 -0.059 0.014
a/Rs 2.989 0.041
Rp/Rs 0.1358 0.0049
ephemeris [JD] 2456856.6579 0.001
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 2.20385883774629
u1 -3.905562637410894
u2 4.246155973539529
u3 -1.5444521106022702
duration 0.1133 0.0017
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 AKV (collaborate/publish)
Light curve chart for 0005121
Parameter Value Uncertainty
Am1 1.0221 0.0081
Am2 -0.02 0.0039
a/Rs 2.929 0.034
Rp/Rs 0.1192 0.0047
ephemeris [JD] 2458967.8173 0.0016
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 2.5975382924110066
u1 -4.652555513475199
u2 4.708925172964763
u3 -1.6539078817321178
duration 0.1128 0.0016
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
NA Custom 690.0 nm 819.0 nm
Organization Observer Code Secondary Observers
AAVSO BJNA (collaborate/publish) BPAG
Light curve chart for 0000800
Parameter Value Uncertainty
Am1 0.9712 0.0048
Am2 0.0214 0.0066
a/Rs 2.928 0.044
Rp/Rs 0.0997 0.0059
ephemeris [JD] 2459328.7885 0.0015
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 1.8141548783888677
u1 -3.271458069803641
u2 3.9652322794312105
u3 -1.5079290289298717
duration 0.112 0.002
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
NA Custom 500.0 nm 580.0 nm
Organization Observer Code Secondary Observers
AAVSO WLUB (collaborate/publish) SERC
Light curve chart for 0000739
Parameter Value Uncertainty
Am1 1.051 0.0056
Am2 -0.0349 0.0055
a/Rs 2.933 0.037
Rp/Rs 0.1539 0.0038
ephemeris [JD] 2459378.7673 0.0011
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 1.8329073429182572
u1 -3.2956857631285246
u2 3.96796018081391
u3 -1.5051817014764284
duration 0.1175 0.0016
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 KJEB (collaborate/publish)
Light curve chart for 0008337
Parameter Value Uncertainty
Am1 0.781 0.015
Am2 0.212 0.094
a/Rs 3.082 0.048
Rp/Rs 0.204 0.061
ephemeris [JD] 2459415.812 0.013
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 1.8345281439248111
u1 -3.299533384696055
u2 3.9721636099322883
u3 -1.507158309971195
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
V Johnson V 502.8 nm 586.8 nm
Organization Observer Code Secondary Observers
AAVSO MHAD (collaborate/publish) MOBS
Light curve chart for 0004190
Parameter Value Uncertainty
Am1 1.0075 0.0085
Am2 -0.0059 0.0049
a/Rs 2.929 0.044
Rp/Rs 0.1319 0.0058
ephemeris [JD] 2459712.9034 0.0028
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 2.238652769649522
u1 -3.9566349389455633
u2 4.261462690428379
u3 -1.5434804576315955
duration 0.1151 0.002
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
NA Custom 597.0 nm 697.0 nm
Organization Observer Code Secondary Observers
AAVSO VVIA (collaborate/publish)
Light curve chart for 0001609
Parameter Value Uncertainty
Am1 1.321 0.012
Am2 -0.229 0.035
a/Rs 3.098 0.048
Rp/Rs 0.102 0.023
ephemeris [JD] 2459712.8807 0.006
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 1.5453201412057405
u1 -2.917209659265228
u2 3.9105405104620434
u3 -1.538650934130962
duration 0.1055 0.0028
Not 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 DSCC (collaborate/publish) WDAD, HJED
Light curve chart for 0001467
Parameter Value Uncertainty
Am1 0.927 0.011
Am2 0.059 0.036
a/Rs 2.928 0.049
Rp/Rs 0.115 0.027
ephemeris [JD] 2459712.8872 0.0052
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 1.8341055413574312
u1 -3.299008901938064
u2 3.9718840819083794
u3 -1.5069806621420616
duration 0.1103 0.0044
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 LPAC (collaborate/publish)
Light curve chart for 0001469
Parameter Value Uncertainty
Am1 1.0019 0.0057
Am2 -0.0012 0.0029
a/Rs 3.027 0.048
Rp/Rs 0.1195 0.0046
ephemeris [JD] 2459713.8197 0.0013
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 2.4589605269448254
u1 -4.445960147280495
u2 4.650355024616844
u3 -1.6633553349854853
duration 0.11 0.0019
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CBB Astrodon ExoPlanet-BB 500.0 nm 1000.0 nm
Organization Observer Code Secondary Observers
AAVSO MBEB (collaborate/publish)
Light curve chart for 0001508
Parameter Value Uncertainty
Am1 0.9934 0.0095
Am2 0.0039 0.0037
a/Rs 2.991 0.049
Rp/Rs 0.1018 0.0064
ephemeris [JD] 2459727.702 0.0018
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 1.8432001722324922
u1 -3.413521326703995
u2 4.151051427147876
u3 -1.580730210820886
duration 0.1097 0.0021
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
NA Custom 385.0 nm 700.0 nm
Organization Observer Code Secondary Observers
AAVSO NANF (collaborate/publish)
Light curve chart for 0003106
Parameter Value Uncertainty
Am1 1.2228 0.0073
Am2 -0.173 0.018
a/Rs 2.939 0.049
Rp/Rs 0.116 0.026
ephemeris [JD] 2460035.9081 0.0093
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 2.0548859325646056
u1 -3.7869925498107238
u2 4.353700014984413
u3 -1.6215933328631094
duration 0.1127 0.004
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 MBEB (collaborate/publish)
Light curve chart for 0003384
Parameter Value Uncertainty
Am1 0.9473 0.004
Am2 0.0416 0.0087
a/Rs 2.983 0.049
Rp/Rs 0.088 0.0082
ephemeris [JD] 2460060.8963 0.0024
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 2.4026528207634823
u1 -4.274246026667427
u2 4.465068790657653
u3 -1.5934755182189986
duration 0.1088 0.0021
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 0005157
Parameter Value Uncertainty
Am1 0.914 0.024
Am2 0.081 0.072
a/Rs 3.082 0.049
Rp/Rs 0.164 0.043
ephemeris [JD] 2460111.822 0.015
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 2.0541598086907173
u1 -3.7851372317240926
u2 4.351577987291167
u3 -1.6206004994142265
duration 0.083 0.015
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 PMIF (collaborate/publish) UNIS
Light curve chart for 0003895
Parameter Value Uncertainty
Am1 0.9834 0.0073
Am2 0.0123 0.0024
a/Rs 3.098 0.045
Rp/Rs 0.1142 0.0048
ephemeris [JD] 2460123.8337 0.0015
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 2.054130998695209
u1 -3.784910040179516
u2 4.351213826815489
u3 -1.6204347204930438
duration 0.1071 0.0017
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 MBEB (collaborate/publish)
Light curve chart for 0004282
Parameter Value Uncertainty
Am1 1.0102 0.0073
Am2 -0.006 0.002
a/Rs 2.948 0.046
Rp/Rs 0.1238 0.0059
ephemeris [JD] 2460174.739 0.0016
eccentricity 0.15
inclination [degrees] 88.2
omega [degrees] 0.0
orbital period [days] 0.925545386
u0 1.8346765758889805
u1 -3.3022836261085367
u2 3.9761125441501277
u3 -1.5085054346818776
duration 0.1137 0.0021
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 CCHD (collaborate/publish)