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
2460572.944 (2024-Sep-19.444)	20.18 ± 0.87	3.84
2460572.954 (2024-Sep-19.454)	22.07 ± 4.65	3.59
2460572.966 (2024-Sep-19.466)	17.31 ± 2.17	5.60
2460574.031 (2024-Sep-20.531)	99.99 ± 99.99	4.75
2460575.919 (2024-Sep-22.419)	19.89 ± 2.22	4.52

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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