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
2460567.989 (2024-Sep-14.489)	18.01 ± 0.27	4.01
2460570.825 (2024-Sep-17.325)	18.13 ± 0.16	3.41
2460570.901 (2024-Sep-17.401)	18.22 ± 0.25	3.31
2460570.972 (2024-Sep-17.472)	17.77 ± 0.22	3.90
2460572.926 (2024-Sep-19.426)	17.80 ± 0.23	4.11

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