MOA 2018-BLG-021

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Event Parameters

Internal ID:	gb4-R-8-67951
Discovery date:	2018-02-13T17:00:32
RA:	17:54:13.78
Dec:	-31:01:11.23
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
183441	17:54:13.93	-31:01:14.46	18.79 ± 0.17	3.80
183502	17:54:13.78	-31:01:11.29	16.54 ± 0.13	0.80
183571	17:54:13.64	-31:01:14.84	17.86 ± 0.12	3.38
183664	17:54:13.44	-31:01:11.39	15.31 ± 0.08	3.97

Last 5 photometry measurements

Observation date	I mag	seeing
2460246.887 (2023-Oct-29.387)	16.48 ± 0.03	3.41
2460246.898 (2023-Oct-29.398)	16.52 ± 0.03	2.97
2460246.909 (2023-Oct-29.409)	16.44 ± 0.03	3.34
2460246.920 (2023-Oct-29.420)	16.48 ± 0.04	3.71
2460246.929 (2023-Oct-29.429)	16.49 ± 0.05	3.67

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 22120.76)

Single lens fit parameters

t_max	=	JD 2458164.00	±	0.01 UT (2018-Feb-14.50)
t_E	=	15.60	±	1.50 days
u₀	=	0.0323	±	0.0049
I_base	=	19.72	±	0.23

External data

Gzipped FITS finder chart

All photometry data

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