exoclock

XO-1b

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. 2021
Mid-time
2455385.51978 ± 5e-05 BJDTDB
Period
3.941505 ± 1.8e-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 to produce a duration that matches the 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
ExoClock Observations (Recent)
Space Observations
Literature Mid-times
ETD Observations
O-C minutes
MEDIUM
18 (5)

19

-0.21±0.24

XO-1b


ExoClock Observations

Observation
Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
2022-04-28 Leon Bewersdorff
Observatory Kipshoven (BLEW)
GSO Ritchey-Chrétien
QHY268M-PH / V / 200.0
0.6 ± 1.0
2021-05-31 Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)
Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / R / 45.0
1.3 ± 0.9
2021-05-31 Carmelo Falco
GAL Hassin Robotic Telescope 2 (GRT2) - Multiband
Giacometti-Fogale RC16 - 2
Andor Apogee Aspen CG16M / g' / 50.0
0.2 ± 0.6
2021-05-31 Fabio Mortari
Hypatia Observatory
Ritchey Chretienne 250mm f/5.3
Sbig ST8-XE / R / 150.0
-4.4 ± 2.7
2021-05-31 Andras Dan
Rocca1
Celestron C8
QHY 183 M / V / 30.0
-4.5 ± 1.4
2021-05-27 Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 75.0
1.3 ± 1.3
2021-05-27 Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / R / 120.0
-0.3 ± 1.0
2021-05-24 Adam Popowicz
Otivar dome2
Newton 12" ASA
ASI ZWO 1600MM / R / 15.0
-1.8 ± 1.0
2020-06-26 Mauro Caló
Cavallino
RC
SBIG ST10 / Lum / 50.0
0.3 ± 1.3 - Data available
2020-05-02 Vikrant Kumar Agnihotri
Cepheid Observatory India
C8/f6.3 Schmidt-Cassegrain
Atik383L+ mono / R / 60.0
1.5 ± 1.3 - Data available
2020-04-20 Mark Phillips
Forthimage
Orion Optics Newtonian
Atik 460EX / R / 60.0
1.6 ± 1.6 - Data available
2020-04-20 Adrian Jones
Oldfield Observatory (I64)
Meade ACF
QSI 583 / R / 30.0
-0.9 ± 2.3 - Data available
2020-04-20 Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 120.0
-2.6 ± 1.2 - Data available
2020-04-17 Manfred Raetz
privat observatory Herges-Hallenberg
SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0
-1.2 ± 0.9
2019-03-08 Iakovos Strikis
Elizabeth Observatory of Athens
Sky Watcher Quattro
SBIG STF-8300mm / Lum / 40.0
4.3 ± 1.2 - Data available
2017-07-12 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
-1.9 ± 0.6 - Data available
2016-03-30 Alessandro Marchini
Astronomical Observatory, University of Siena
Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 180.0
1.1 ± 1.2
2012-05-19 Filip Walter
Stefanik Observatory
Meade SCT
SBIG ST-10XME / R / 60.0
0.9 ± 0.9 - Data available


Literature Mid-times

Observation
Date
Mid-time Time format Reference O-C
minutes
2014-05-26 2456804.4617 ± 0.00015 BJD_TDB Southworth et al. 2018 0.2 ± 0.2
2012-05-12 2456059.51756 ± 0.00016 BJD_TDB Southworth et al. 2018 0.6 ± 0.2
2012-05-12 2456059.51669 ± 0.0003 BJD_TDB Southworth et al. 2018 -0.6 ± 0.4
2012-05-12 2456059.51659 ± 0.00014 BJD_TDB Southworth et al. 2018 -0.8 ± 0.2
2012-05-08 2456055.57614 ± 0.00017 BJD_TDB Southworth et al. 2018 0.7 ± 0.2
2012-05-08 2456055.57529 ± 0.00013 BJD_TDB Southworth et al. 2018 -0.5 ± 0.2
2012-05-08 2456055.57528 ± 0.00019 BJD_TDB Southworth et al. 2018 -0.5 ± 0.3
2011-09-30 2455834.85186 ± 0.00017 BJD_TDB Deming et al. 2013 0.7 ± 0.2
2010-04-28 2455314.5729 ± 0.00014 BJD_TDB Southworth et al. 2018 0.3 ± 0.2
2007-05-06 2454226.71769 ± 0.00037 HJD_UTC Cáceres et al. 2009 1.6 ± 0.5
2007-05-02 2454222.77597 ± 0.00039 HJD_UTC Cáceres et al. 2009 1.3 ± 0.6
2007-05-02 2454222.77539 ± 0.00036 HJD_UTC Cáceres et al. 2009 0.5 ± 0.5
2007-04-28 2454218.83331 ± 0.00114 HJD_UTC Cáceres et al. 2009 -0.4 ± 1.6
2006-06-01 2453887.74774 ± 0.00011 BJD_TDB Burke et al. 2010 -0.2 ± 0.2
2006-06-01 2453887.74679 ± 0.00016 HJD_UTC Holman et al. 2006 -0.5 ± 0.2
2006-05-28 2453883.80565 ± 0.00019 HJD_UTC Holman et al. 2006 0.0 ± 0.3
2006-05-24 2453879.864 ± 0.0011 HJD_UTC Holman et al. 2006 -0.2 ± 1.6
2006-05-20 2453875.92305 ± 0.00036 HJD_UTC Holman et al. 2006 0.6 ± 0.5
2006-03-14 2453808.917 ± 0.0011 HJD_UTC McCullough et al. 2006 0.0 ± 1.6
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