MOA 2021-BLG-220

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Event Parameters

Internal ID:	gb14-R-7-120796
Discovery date:	2021-07-01T16:41:15
RA:	18:08:50.24
Dec:	-27:44:05.05
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
7592	18:08:50.38	-27:44:02.76	18.44 ± 0.09	3.90
7648	18:08:50.28	-27:44:04.90	17.08 ± 0.12	1.45
7674	18:08:50.24	-27:44:02.74	18.08 ± 0.10	3.09
7886	18:08:49.86	-27:44:06.26	17.79 ± 0.09	4.68

Last 5 photometry measurements

Observation date	I mag	seeing
2460572.894 (2024-Sep-19.394)	16.92 ± 0.05	3.97
2460572.934 (2024-Sep-19.434)	17.22 ± 0.08	4.23
2460572.946 (2024-Sep-19.446)	17.13 ± 0.06	4.05
2460572.957 (2024-Sep-19.457)	17.11 ± 0.12	4.93
2460575.921 (2024-Sep-22.421)	16.36 ± 0.18	4.87

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 13402.94)

Single lens fit parameters

t_max	=	JD 2459421.60	±	0.02 UT (2021-Jul-26.10)
t_E	=	51.51	±	0.40 days
u₀	=	0.1290	±	0.0017
I_base	=	18.32	±	0.19

External data

Gzipped FITS finder chart

All photometry data

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