MOA 2021-BLG-178

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Event Parameters

Internal ID:	gb4-R-4-36906
Discovery date:	2021-06-10T22:14:15
RA:	17:52:45.37
Dec:	-31:14:07.64
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
100955	17:52:45.15	-31:14:03.63	17.61 ± 0.19	4.98
100997	17:52:45.19	-31:14:08.24	18.89 ± 0.20	3.19
101113	17:52:45.49	-31:14:03.51	19.01 ± 0.22	3.81
101156	17:52:45.57	-31:14:08.08	19.02 ± 0.13	2.28

Last 5 photometry measurements

Observation date	I mag	seeing
2460246.887 (2023-Oct-29.387)	99.99 ± 99.99	3.51
2460246.898 (2023-Oct-29.398)	20.95 ± 1.84	3.07
2460246.909 (2023-Oct-29.409)	20.63 ± 1.48	3.39
2460246.920 (2023-Oct-29.420)	19.55 ± 0.66	3.64
2460246.929 (2023-Oct-29.429)	99.99 ± 99.99	3.65

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

Single lens fit parameters

t_max	=	JD 2459375.27	±	0.04 UT (2021-Jun-9.77)
t_E	=	8.63	±	0.72 days
u₀	=	0.1926	±	0.0202
I_base	=	19.10	±	0.21

External data

Gzipped FITS finder chart

All photometry data

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