exoclock

XO-1b (LOW)

Discovered by: McCullough et al. 2006

The Star
Simbad
GAIA
2MASS
BD+28 2507
DR2 1316708918505350528
J16021184+2810105
RA 16:02:11.8463 DEC +28:10:10.419
Parallax
6.085 mas
P.M. RA
-17.422 mas/y
P.M. DEC
14.82 mas/y
MagV
11.25
MagR
10.81
MagI
10.43
MagJ
9.939
MagH
9.601
MagK
9.527
MagG
11.004
MagGBP
11.369
MagGRP
10.499
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2455787.553228 ± 7.7e-05 BJDTDB
Period
3.94150468 ± 2e-07 days

Transit Parameters
Torres et al. 2008
Rp/Rs
0.1326 ± 0.0005
a/Rs**
11.24 +0.09 -0.09
i
88.8 +0.7 -0.3 deg
e
-
ω
- deg
DepthR*
23.26 mmag
Duration*
2.97 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Torres et al. 2008
Teff
5750.0 +75.0 -75.0 K
Log(g)
4.53 +0.06 -0.06 cm/s2
Fe/H
0.02 +0.08 -0.08 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 47 (6)
O-C 0.54 ± 0.3 minutes
ExoClock Observations (Recent) 24 (6)
Space Observations (Recent) 4 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 19 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.13094 ± 0.00048

XO-1b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
XO-1b (LOW)
2022-07-07
Sebastien Brouillard
AstroQueyras
RC500
STX16803 / R / 120.0
1.36 ± 0.86
XO-1b (LOW)
2022-07-07
Simon Dawes
William James II Observatory
Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 60.0
-1.23 ± 1.87
XO-1b (LOW)
2022-07-04
Robert Roth
TURMX Observatory
CFF Telescopes 160mm APO
ZWO ASI6200MM Pro / Lum / 60.0
0.5 ± 1.3
XO-1b (LOW)
2022-07-04
Kevin Johnson
Holbrook Observatory
Meade LX10 EMC
Atik 383L+ / R / 75.0
0.07 ± 1.87
XO-1b (LOW)
2022-06-30
Fabio Guillelmon
Stellarium Gornergrat
RiFast 600
FLI Proline PL16803 / Clear / 45.0
2.09 ± 1.44
XO-1b (LOW)
2022-04-28
Leon Bewersdorff
Observatory Kipshoven (BLEW)
GSO Ritchey-Chrétien
QHY268M-PH / V / 200.0
1.19 ± 1.01
XO-1b (LOW)
2021-05-31
Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)
Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / R / 45.0
1.76 ± 0.86
XO-1b (LOW)
2021-05-31
Carmelo Falco
GAL Hassin Robotic Telescope 2 (GRT2) - Multiband
Giacometti-Fogale RC16 - 2
Andor Apogee Aspen CG16M / gpr / 50.0
0.75 ± 0.58
XO-1b (LOW)
2021-05-31
Fabio Mortari
Hypatia Observatory
Ritchey Chretienne 250mm f/5.3
Sbig ST8-XE / R / 150.0
-3.86 ± 2.74
XO-1b (LOW)
2021-05-31
Andras Dan
Rocca1
Celestron C8
QHY 183 M / V / 30.0
-4.0 ± 1.44
XO-1b (LOW)
2021-05-27
Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 75.0
1.77 ± 1.3
XO-1b (LOW)
2021-05-27
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / R / 120.0
0.18 ± 1.01
XO-1b (LOW)
2021-05-24
Adam Popowicz
Otivar dome2
Newton 12" ASA
ASI ZWO 1600MM / R / 15.0
-1.25 ± 1.01
XO-1b (LOW)
2020-06-26
Lorenzo Betti
Osservatorio Polifunzionale del Chianti
RC-80cm
Moravian G4 - KAF 09000 / V / 120.0
2.12 ± 0.29
XO-1b (LOW)
2020-06-26
Mauro Caló
Cavallino
RC
SBIG ST10 / Lum / 50.0
0.76 ± 1.3
XO-1b (LOW)
2020-05-02
Vikrant Kumar Agnihotri
Cepheid Observatory India
C8/f6.3 Schmidt-Cassegrain
Atik383L+ mono / R / 60.0
2.0 ± 1.3
XO-1b (LOW)
2020-04-20
Mark Phillips
Forthimage
OO Newtonian CCD
Atik 460EX / R / 60.0
2.02 ± 1.58
XO-1b (LOW)
2020-04-20
Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 30.0
-0.43 ± 2.3
XO-1b (LOW)
2020-04-20
Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 120.0
-2.15 ± 1.15
XO-1b (LOW)
2020-04-17
Manfred Raetz
privat observatory Herges-Hallenberg
SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0
-0.71 ± 0.86
XO-1b (LOW)
2019-03-08
Iakovos Strikis
Elizabeth Observatory of Athens
Sky Watcher Quattro
SBIG STF-8300mm / Lum / 40.0
4.74 ± 1.15
XO-1b (LOW)
2017-07-12
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
-1.57 ± 0.58
XO-1b (LOW)
2016-03-30
Alessandro Marchini
Astronomical Observatory University of Siena
Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 180.0
1.39 ± 1.15
XO-1b (LOW)
2012-05-19
Filip Walter
Stefanik Observatory
Meade SCT
SBIG ST-10XME / R / 60.0
1.07 ± 0.86

Space Observations

Planet
Observation Date
Mission O-C
minutes
XO-1b (LOW)
2020-05-10
TESS-0.72 ± 0.39
XO-1b (LOW)
2020-05-06
TESS-1.11 ± 0.37
XO-1b (LOW)
2020-04-24
TESS-0.14 ± 0.48
XO-1b (LOW)
2020-04-20
TESS-0.47 ± 0.43

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2014-05-26 Southworth et al. 2018 0.38 ± 0.22
2012-05-12 Southworth et al. 2018 0.73 ± 0.23
2012-05-12 Southworth et al. 2018 -0.51 ± 0.43
2012-05-12 Southworth et al. 2018 -0.66 ± 0.2
2012-05-08 Southworth et al. 2018 0.86 ± 0.24
2012-05-08 Southworth et al. 2018 -0.37 ± 0.19
2012-05-08 Southworth et al. 2018 -0.38 ± 0.27
2011-09-30 Deming et al. 2013 0.83 ± 0.24
2010-04-28 Southworth et al. 2018 0.34 ± 0.2
2007-05-06 Cáceres et al. 2009 1.52 ± 0.53
2007-05-02 Cáceres et al. 2009 1.21 ± 0.56
2007-05-02 Cáceres et al. 2009 0.37 ± 0.52
2007-04-28 Cáceres et al. 2009 -0.45 ± 1.64
2006-06-01 Burke et al. 2010 -0.33 ± 0.16
2006-06-01 Holman et al. 2006 -0.65 ± 0.23
2006-05-28 Holman et al. 2006 -0.13 ± 0.27
2006-05-24 Holman et al. 2006 -0.38 ± 1.58
2006-05-20 Holman et al. 2006 0.46 ± 0.52
2006-03-14 McCullough et al. 2006 -0.11 ± 1.58
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