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
2460611.889 (2024-Oct-28.389)	17.14 ± 0.10	4.70
2460611.902 (2024-Oct-28.402)	17.14 ± 0.05	3.77
2460611.913 (2024-Oct-28.413)	17.38 ± 0.22	5.19
2460611.924 (2024-Oct-28.424)	17.43 ± 0.15	5.03
2460614.877 (2024-Oct-31.377)	17.23 ± 0.14	5.06

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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