exoclock

WASP-101b (MEDIUM)

Discovered by: Hellier et al. 2014

The Star
Simbad
GAIA
2MASS		 CPD-23 1329
DR2 2924661867160818304
J06332426-2329103
RA 06:33:24.2672 DEC -23:29:10.296
Parallax
4.941 mas		 P.M. RA
-2.569 mas/y		 P.M. DEC
24.992 mas/y
MagV
10.34		 MagR*
9.947		 MagI*
9.771		 MagJ
9.334		 MagH
9.124		 MagK
9.075
MagG
10.138		 MagGBP
10.407		 MagGRP
9.748
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2458470.303794 ± 9.6e-05 BJDTDB
Period
3.58570704 ± 3e-07 days
Transit Parameters
Hellier et al. 2014
Rp/Rs
0.1122 ± 0.0009		 a/Rs
8.45 +0.15 -0.15
 i
85.0 +0.2 -0.2 deg
e
-		 ω
- deg
DepthR*
13.92 mmag		 Duration*
2.72 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Hellier et al. 2014
Teff
6400.0 +110.0 -110.0 K
 Log(g)
4.34 +0.02 -0.02 cm/s2
 Fe/H
0.2 +0.12 -0.12 dex
ExoClock Status
Observing Priority MEDIUM
Minimum aperture 5.0"
Total Observations (Recent) 26 (2)
O-C -0.1 ± 0.87 minutes
ExoClock Observations (Recent) 13 (2)
Space Observations (Recent) 12 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.10894 ± 0.00027

WASP-101b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
WASP-101b (MEDIUM)
2025-12-10		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 30.0		0.36 ± 0.94
WASP-101b (MEDIUM)
2025-12-06		Kohji Tsumura
Tokyo City University		Vixen VC200L
ZWO ASI 1600MM-PRO / R / 60.0		-3.16 ± 4.61
WASP-101b (MEDIUM)
2025-01-17		Aziz Ettahar Kaeouach
Atlas Sky Observatory		Planewaves CDK 500
Zwo asi 6200 / Lum / 120.0		-2.96 ± 2.74
WASP-101b (MEDIUM)
2023-11-18		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 45.0		0.11 ± 3.31
WASP-101b (MEDIUM)
2023-03-05		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 30.0		3.52 ± 1.22
WASP-101b (MEDIUM)
2023-02-15		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 30.0		-0.11 ± 1.44
WASP-101b (MEDIUM)
2023-02-15		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 30.0		-1.04 ± 0.88
WASP-101b (MEDIUM)
2023-01-28		Anaël Wünsche
El Sauce Observatory		CDK Planewave Chili
Moravian G4 16k / R / 120.0		2.49 ± 0.86
WASP-101b (MEDIUM)
2023-01-28		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 180.0		-1.19 ± 1.05
WASP-101b (MEDIUM)
2021-01-23		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		1.9 ± 1.15
WASP-101b (MEDIUM)
2021-01-05		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		-1.13 ± 0.89
WASP-101b (MEDIUM)
2020-12-18		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 30.0		-1.05 ± 1.58
WASP-101b (MEDIUM)
2020-12-11		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 30.0		-0.46 ± 1.73

Space Observations
Planet
Observation Date		 Mission O-C
minutes
WASP-101b (MEDIUM)
2021-01-12		TESS-0.37 ± 0.53
WASP-101b (MEDIUM)
2021-01-08		TESS-0.54 ± 0.48
WASP-101b (MEDIUM)
2021-01-05		TESS-0.35 ± 0.49
WASP-101b (MEDIUM)
2021-01-01		TESS0.38 ± 0.5
WASP-101b (MEDIUM)
2020-12-29		TESS0.34 ± 0.49
WASP-101b (MEDIUM)
2020-12-25		TESS-0.12 ± 0.52
WASP-101b (MEDIUM)
2020-12-21		TESS0.64 ± 0.5
WASP-101b (MEDIUM)
2019-01-04		TESS-0.72 ± 0.53
WASP-101b (MEDIUM)
2019-01-01		TESS-0.28 ± 0.52
WASP-101b (MEDIUM)
2018-12-28		TESS0.15 ± 0.53
WASP-101b (MEDIUM)
2018-12-21		TESS-0.43 ± 0.48
WASP-101b (MEDIUM)
2018-12-17		TESS0.79 ± 0.49

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2012-08-25 Hellier et al. 2014 0.05 ± 0.29
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