exoclock

WASP-103b

Discovered by: Gillon et al. 2014

The Star
Simbad
GAIA
2MASS		 WASP-103
DR2 4439085988769170432
J16371556+0711000
RA 16:37:15.5753 DEC +07:11:00.119
Parallax
1.137 mas		 P.M. RA
-8.506 mas/y		 P.M. DEC
2.187 mas/y
MagV
12.1		 MagR*
11.971		 MagI*
11.386		 MagJ
11.1		 MagH
10.857		 MagK
10.767
MagG
12.193		 MagGBP
12.528		 MagGRP
11.7
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2021
Mid-time
2457132.47094 ± 4e-05 BJDTDB
Period
0.92554544 ± 8e-08 days
Transit Parameters
Southworth et al. 2016
Rp/Rs
0.1158 ± 0.0006		 a/Rs
3.013 +0.017 -0.027
 i
88.2 +1.5 -1.5 deg
e
-		 ω
- deg
DepthR*
17.76 mmag		 Duration*
2.67 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted to produce a duration that matches the observations.

Limb Darkening Parameters
Gillon et al. 2014
Teff
6110.0 +160.0 -160.0 K
 Log(g)
4.22 +0.12 -0.05 cm/s2
 Fe/H
0.06 +0.13 -0.13 dex
ExoClock Status
Observing Priority
ExoClock Observations (Recent)
Space Observations
Literature Mid-times
ETD Observations
O-C minutes 		LOW
27 (7)

36

0.55±0.23

WASP-103b


ExoClock Observations

Observation
Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
2022-06-24 Sacha Foschino
Observatoire des Baronnies Provençales		 Planewave 430mm
SVO ASI 6200 MM Pro / Clear / 120.0		 -0.0 ± 0.7
2022-06-12 Kevin Johnson
Holbrook Observatory		 Meade LX10 EMC
Atik 383L+ / Lum / 90.0		 1.9 ± 1.9
2022-05-05 Adrian Jones
Private Observatory (I64)		 Meade ACF 30cm
QSI 583 / R / 150.0		 1.0 ± 1.7
2022-04-23 Adam Popowicz
Observatory Pyskowice		 RC12" GSO
ASI ZWO 1600 MM / ATIK 11000M / R / 180.0		 -0.2 ± 5.8
2022-04-10 Leon Bewersdorff
Observatory Kipshoven (BLEW)		 GSO Ritchey-Chrétien
QHY268M-PH / V / 60.0		 1.0 ± 2.0
2022-04-10 Adam Popowicz
Otivar dome2		 Newton 12" ASA
ASI ZWO 1600MM / R / 65.0		 0.7 ± 1.4
2021-08-29 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 1.4 ± 1.4
2021-06-28 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 -0.9 ± 1.2
2021-06-16 Adam Popowicz
Observatory Pyskowice		 RC12" GSO
ASI ZWO 1600 MM / ATIK 11000M / R / 120.0		 1.0 ± 2.3
2021-06-16 Giuseppe Marino
Gruppo Astrofili Catanesi		 Newtonian
SBIG ST-7 XME / Clear / 140.0		 -1.0 ± 0.7
2021-06-04 Ivo Peretto
MarSEC Marana Space Explorer Center		 R-C
Moravia G2-1600 MkII / Clear / 80.0		 4.9 ± 1.3
2021-06-04 Massimiliano Mannucci
Osservatorio Astronomico Margherita Hack		 Celestron C14
SBIG ST10 XME / Clear / 120.0		 0.8 ± 0.9
2021-04-11 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 -3.6 ± 1.2
2021-03-30 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 -2.5 ± 1.3
2021-03-17 Yves Jongen
Deep Sky Chile		 Plane Wave CDK 17"
Moravian 4G / R / 120.0		 -0.3 ± 1.0
2020-06-08 Francois Regembal
HRTobs		 Astrosib RC360
SBIG STX 16803 / Lum / 60.0		 1.5 ± 0.9 - Data available
2020-05-27 Roland Casali
Alto 2000		 Ritchey Chretien
Kepler 400 sCMOS / R / 60.0		 3.3 ± 1.3 - Data available
2020-05-27 Roland Casali
Alto 2000		 Ritchey Chretien
Kepler 400 sCMOS / R / 30.0		 2.0 ± 1.4 - Data available
2020-05-27 Mauro Caló
Cavallino		 RC
SBIG ST10 / Lum / 60.0		 0.3 ± 1.0 - Data available
2020-05-27 Marc Deldem
Les Barres Observatory		 Celestron C8
SBIG ST8-XME / Clear / 120.0		 -0.7 ± 1.6 - Data available
2020-05-14 John Savage
Z42 Rushay Farm Observatory		 Celestron 14Edge
ZWO ASI6200MM / Clear / 180.0		 3.2 ± 1.0 - Data available
2020-05-14 Adrian Jones
Oldfield Observatory (I64)		 Meade ACF 30cm
QSI 583 / R / 90.0		 1.5 ± 1.7 - Data available
2020-05-14 Adrian Jones
Oldfield Observatory (I64)		 Meade ACF 30cm
QSI 583 / R / 60.0		 1.1 ± 1.4 - Data available
2020-04-07 Manfred Raetz
privat observatory Herges-Hallenberg		 SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0		 0.4 ± 1.4 - Data available
2019-06-01 Anaël Wünsche
Observatoire des Baronnies Provençales		 CDK Planewave
SBIG STL11K / Clear / 120.0		 0.9 ± 1.2 - Data available
2017-06-23 Anaël Wünsche
Observatoire des Baronnies Provençales		 Astelco
FLIPL230 / Lum / 60.0		 1.6 ± 0.9 - Data available
2016-05-21 Marc Deldem
Les Barres Observatory		 Celestron C8
SBIG ST8-XME / Clear / 120.0		 -1.7 ± 1.6 - Data available


Literature Mid-times

Observation
Date		 Mid-time Time format Reference O-C
minutes
2018-08-09 2458340.3074 ± 0.00047 BJD_TDB Maciejewski et al. 2018 -0.5 ± 0.7
2018-06-19 2458289.4029 ± 0.00055 BJD_TDB Maciejewski et al. 2018 0.2 ± 0.8
2018-06-18 2458288.4774 ± 0.0003 BJD_TDB Maciejewski et al. 2018 0.3 ± 0.4
2018-06-06 2458275.5192 ± 0.00028 BJD_TDB Maciejewski et al. 2018 -0.5 ± 0.4
2018-05-12 2458250.52991 ± 0.00031 BJD_TDB Maciejewski et al. 2018 0.1 ± 0.4
2018-05-11 2458249.604 ± 0.00029 BJD_TDB Maciejewski et al. 2018 -0.4 ± 0.4
2017-06-23 2457927.5142 ± 0.0004 BJD_TDB Maciejewski et al. 2018 -0.4 ± 0.6
2017-05-16 2457890.49304 ± 0.0006 BJD_TDB Maciejewski et al. 2018 0.5 ± 0.9
2017-05-04 2457877.5346 ± 0.00064 BJD_TDB Maciejewski et al. 2018 -0.6 ± 0.9
2017-04-17 2457860.87503 ± 0.00029 BJD_TDB Patra et al. 2020 -0.2 ± 0.4
2016-06-12 2457551.74314 ± 0.00038 BJD_TDB Patra et al. 2020 0.2 ± 0.5
2016-05-30 2457538.78548 ± 0.0003 BJD_TDB Patra et al. 2020 0.2 ± 0.4
2016-05-09 2457518.4242 ± 0.00101 BJD_TDB Maciejewski et al. 2018 1.2 ± 1.5
2016-05-08 2457517.4979 ± 0.00116 BJD_TDB Maciejewski et al. 2018 0.1 ± 1.7
2016-05-08 2457516.5716 ± 0.00075 BJD_TDB Maciejewski et al. 2018 -1.0 ± 1.1
2016-05-04 2457512.87006 ± 0.00031 BJD_TDB Patra et al. 2020 -0.1 ± 0.4
2016-05-03 2457511.943617 ± 7.6e-05 HJD_UTC Lendl et al. 2017 -0.2 ± 0.1
2014-08-13 2456882.57473 ± 0.0005 BJD_TDB Southworth et al. 2015 1.5 ± 0.7
2014-07-19 2456857.58421 ± 0.00025 BJD_TDB Southworth et al. 2015 0.4 ± 0.4
2014-07-19 2456857.584 ± 0.00025 BJD_TDB Southworth et al. 2015 0.1 ± 0.4
2014-07-19 2456857.58398 ± 0.00017 BJD_TDB Southworth et al. 2015 0.1 ± 0.2
2014-07-19 2456857.5839 ± 0.00022 BJD_TDB Southworth et al. 2015 -0.1 ± 0.3
2014-07-19 2456857.58383 ± 0.00014 BJD_TDB Southworth et al. 2015 -0.2 ± 0.2
2014-07-18 2456856.65838 ± 0.00018 BJD_TDB Southworth et al. 2015 -0.0 ± 0.3
2014-07-06 2456844.62678 ± 0.0003 BJD_TDB Southworth et al. 2015 0.7 ± 0.4
2014-07-06 2456844.62647 ± 0.00023 BJD_TDB Southworth et al. 2015 0.2 ± 0.3
2014-07-06 2456844.62642 ± 0.00034 BJD_TDB Southworth et al. 2015 0.2 ± 0.5
2014-07-06 2456844.62641 ± 0.00019 BJD_TDB Southworth et al. 2015 0.1 ± 0.3
2014-07-06 2456844.62633 ± 0.00019 BJD_TDB Southworth et al. 2015 0.0 ± 0.3
2014-06-27 2456836.296427 ± 6.3e-05 BJD_TDB Delrez et al. 2018 0.0 ± 0.1
2014-06-24 2456832.59401 ± 0.00024 BJD_TDB Southworth et al. 2015 -0.3 ± 0.3
2014-06-23 2456831.66843 ± 0.00039 BJD_TDB Southworth et al. 2015 -0.3 ± 0.6
2014-06-09 2456817.78572 ± 0.00027 BJD_TDB Southworth et al. 2015 0.3 ± 0.4
2014-05-02 2456779.8387 ± 0.00022 BJD_TDB Southworth et al. 2015 0.8 ± 0.3
2014-04-20 2456767.80578 ± 0.00017 BJD_TDB Southworth et al. 2015 -0.4 ± 0.2
2013-06-16 2456459.59957 ± 0.00075 BJD_TDB Gillon et al. 2014 0.2 ± 1.1
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