MOA 2018-BLG-231

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Event Parameters

Internal ID:	gb5-R-10-115168
Discovery date:	2018-07-09T15:52:54
RA:	17:54:43.86
Dec:	-28:37:37.87
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
112860	17:54:44.06	-28:37:35.85	18.67 ± 0.18	4.29
112879	17:54:44.02	-28:37:41.07	16.26 ± 0.10	3.87
112928	17:54:43.87	-28:37:38.03	14.42 ± 0.02	0.82
112946	17:54:43.81	-28:37:34.16	16.95 ± 0.09	4.51

Last 5 photometry measurements

Observation date	I mag	seeing
2460480.017 (2024-Jun-18.517)	14.42 ± 0.01	3.64
2460480.029 (2024-Jun-18.529)	14.42 ± 0.01	3.50
2460480.039 (2024-Jun-18.539)	14.38 ± 0.01	3.29
2460480.051 (2024-Jun-18.551)	14.40 ± 0.01	3.66
2460480.064 (2024-Jun-18.564)	14.41 ± 0.01	3.49

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 155310.21)

Single lens fit parameters

t_max	=	JD 2458311.43	±	0.04 UT (2018-Jul-11.93)
t_E	=	59.53	±	0.59 days
u₀	=	0.2233	±	0.0044
I_base	=	17.67	±	0.24

External data

Gzipped FITS finder chart

All photometry data

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