MOA 2021-BLG-400

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Event Parameters

Internal ID:	gb20-R-7-12781
Discovery date:	2021-09-22T15:02:22
RA:	18:19:50.45
Dec:	-24:02:48.84
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
40001	18:19:50.66	-24:02:46.85	17.49 ± 0.16	4.51
40130	18:19:50.41	-24:02:49.43	18.80 ± 0.13	0.08
40323	18:19:50.14	-24:02:52.27	15.36 ± 0.06	4.77

Last 5 photometry measurements

Observation date	I mag	seeing
2460599.874 (2024-Oct-16.374)	18.32 ± 0.14	2.74
2460599.953 (2024-Oct-16.453)	18.16 ± 0.22	3.47
2460602.897 (2024-Oct-19.397)	18.13 ± 0.17	3.39
2460610.887 (2024-Oct-27.387)	16.97 ± 0.31	5.33
2460614.893 (2024-Oct-31.393)	17.20 ± 0.23	4.92

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 2744.10)

Single lens fit parameters

t_max	=	JD 2459481.99	±	0.22 UT (2021-Sep-24.49)
t_E	=	65.33	±	3.96 days
u₀	=	0.0933	±	0.0107
I_base	=	19.57	±	0.16

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice