MOA 2023-BLG-087

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Event Parameters

Internal ID:	gb4-R-8-82789
Discovery date:	2023-03-29T20:06:58
RA:	17:55:48.97
Dec:	-31:04:44.50
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
135689	17:55:49.13	-31:04:48.90	17.13 ± 0.10	4.77
135791	17:55:48.93	-31:04:48.27	17.26 ± 0.20	3.28
135840	17:55:48.87	-31:04:41.17	15.06 ± 0.04	4.14
135903	17:55:48.74	-31:04:42.77	15.61 ± 0.09	3.45

Last 5 photometry measurements

Observation date	I mag	seeing
2460246.887 (2023-Oct-29.387)	18.02 ± 0.38	3.35
2460246.898 (2023-Oct-29.398)	18.92 ± 0.95	3.01
2460246.909 (2023-Oct-29.409)	18.34 ± 0.55	3.33
2460246.920 (2023-Oct-29.420)	18.58 ± 0.57	3.65
2460246.929 (2023-Oct-29.429)	18.35 ± 0.71	3.55

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 0.00)

Single lens fit parameters

t_max	=	JD 2460040.83	±	0.07 UT (2023-Apr-6.33)
t_E	=	22.46	±	1.31 days
u₀	=	0.2893	±	0.0254
I_base	=	17.13	±	0.26

External data

Gzipped FITS finder chart

All photometry data

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