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WASP-37 b

View target in exoplanet catalog

Timing Plot

Total Reductions to Date: 2

Date Processed: 04/27/2025 at 07:00:04 (PDT)

Exoplanet Watch Ephemeris

Parameter	Value	Uncertainty
Orbital Period (Days)	3.5774793531641675	6.218569742815352e-07
Ephemeris (BJD_TDB)	2460407.908185801	0.0005030331317155916

Assumed Priors

Parameter	Value	Uncertainty	Units	Reference
RA	221.9438866		decimal
DEC	1.0650227		decimal
Host Star Metallicity	-0.284	0.013		Mallonn et al. 2019
Host Star log(g)	4.40819	0.058679	Log10(cgs)	Mallonn et al. 2019
Host Star Radius [R_Sun]	1.003	0.053	Sol	Kokori et al. 2023
Host Star Effective Temperature [K]	5800.0	150.0	K	Kokori et al. 2023
a/R_s	9.6	0.6		Kokori et al. 2023
eccentricity	0.052			Bonomo et al. 2017
inclination [degrees]	88.8	0.8	deg	Kokori et al. 2023
omega [degrees]	0.0		deg	Kokori et al. 2023
orbital period [days]	3.57747894	4.3e-07	day	Kokori et al. 2023
R_p	13.51	0.72	R_Earth	ExoFOP-TESS TOI
R_p/R_s	0.1252	0		ExoFOP-TESS TOI
ephemeris [JD]	2458021.72946	0.00018	BJD-TDB	Kokori et al. 2023

Previously Published Mid-Transit Times

Value	Uncertainty	Units	Reference
2455338.61919	0.0006	BJD-TDB, HJD-UTC	Bonomo et al. 2017, Simpson et al. 2010
2456393.97698	0.00052	BJD-TDB	Mallonn et al. 2019
2456454.79438	0.00064	BJD-TDB	Ivshina & Winn 2022
2457524.4596	0.0003	BJD-TDB	Kokori et al. 2022
2458021.72946	0.00018	BJD-TDB	Kokori et al. 2023
2459695.989749	0.0010425	BJD	ExoFOP-TESS TOI

Observations

Light curve chart for 0005836

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Parameter	Value	Uncertainty
Am1	1.0418	0.0086
Am2	-0.029	0.014
a/R_s	10.04	0.76
R_p/R_s	0.132	0.011
ephemeris [JD]	2460407.9101	0.0038
eccentricity	0.052
inclination [degrees]	88.8
omega [degrees]	0.0
orbital period [days]	3.57747894
u0	2.037055390050374
u1	-3.631223884983746
u2	4.128505756146265
u3	-1.534337199693363
duration	0.126	0.011

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 0005988

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Parameter	Value	Uncertainty
Am1	0.759	0.03
Am2	0.266	0.078
a/R_s	8.08	1.73
R_p/R_s	0.197	0.07
ephemeris [JD]	2460425.791	0.012
eccentricity	0.052
inclination [degrees]	88.8
omega [degrees]	0.0
orbital period [days]	3.57747894
u0	1.8630693043438435
u1	-3.278348364467031
u2	3.876665859382226
u3	-1.4613867414922157
duration	0.0829	0.0064

Not included in ephemeris calculations

Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )

Filter	Detail	Min	Max
NA	Custom	350.0 nm	750.0 nm

Organization	Observer Code	Secondary Observers
AAVSO	NRDA (collaborate/publish)

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