MOA 2021-BLG-396

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Event Parameters

Internal ID:	gb4-R-6-72014
Discovery date:	2021-09-18T19:38:09
RA:	17:55:22.67
Dec:	-31:44:00.61
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
121574	17:55:22.93	-31:43:59.82	18.24 ± 0.13	4.29
121607	17:55:22.88	-31:44:03.15	17.92 ± 0.08	4.01
121632	17:55:22.83	-31:43:59.13	18.53 ± 0.11	3.40
121679	17:55:22.68	-31:44:02.49	18.16 ± 0.08	1.55
121735	17:55:22.53	-31:44:00.67	18.17 ± 0.08	1.42

Last 5 photometry measurements

Observation date	I mag	seeing
2460572.944 (2024-Sep-19.444)	17.99 ± 0.14	4.04
2460572.954 (2024-Sep-19.454)	18.23 ± 0.18	3.68
2460572.966 (2024-Sep-19.466)	15.84 ± 0.86	5.52
2460574.031 (2024-Sep-20.531)	17.03 ± 0.13	4.84
2460575.919 (2024-Sep-22.419)	17.58 ± 0.23	4.66

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 4902.30)

Single lens fit parameters

t_max	=	JD 2459476.49	±	0.03 UT (2021-Sep-18.99)
t_E	=	3609.72	±	3292.36 days
u₀	=	0.0001	±	0.0008
I_base	=	26.69	±	0.19

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice