MOA 2021-BLG-171

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Event Parameters

Internal ID:	gb9-R-9-130048
Discovery date:	2021-06-09T10:38:01
RA:	18:00:20.88
Dec:	-28:56:29.89
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
151170	18:00:21.10	-28:56:28.76	18.67 ± 0.24	3.94
151171	18:00:21.08	-28:56:32.43	18.83 ± 0.29	3.90
151244	18:00:20.89	-28:56:30.79	15.96 ± 0.18	0.76
151270	18:00:20.86	-28:56:34.41	16.55 ± 0.07	4.09
151342	18:00:20.72	-28:56:32.26	17.87 ± 0.16	2.42

Last 5 photometry measurements

Observation date	I mag	seeing
2460572.952 (2024-Sep-19.452)	15.92 ± 0.04	3.93
2460572.964 (2024-Sep-19.464)	17.08 ± 0.46	5.05
2460573.025 (2024-Sep-19.525)	15.94 ± 0.05	4.80
2460575.903 (2024-Sep-22.403)	16.39 ± 0.44	6.70
2460575.916 (2024-Sep-22.416)	15.67 ± 0.15	5.70

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 37705.09)

Single lens fit parameters

t_max	=	JD 2459374.43	±	0.04 UT (2021-Jun-8.93)
t_E	=	16.71	±	1.55 days
u₀	=	0.1748	±	0.0240
I_base	=	19.37	±	0.27

External data

Gzipped FITS finder chart

All photometry data

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