MOA 2020-BLG-191

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Event Parameters

Internal ID:	gb21-R-1-10208
Discovery date:	2020-07-27T20:40:57
RA:	18:16:23.19
Dec:	-21:23:37.77
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
24201	18:16:23.07	-21:23:35.27	18.18 ± 0.04	3.09
24278	18:16:23.22	-21:23:39.82	18.02 ± 0.03	2.77
24279	18:16:23.25	-21:23:37.11	15.75 ± 0.02	0.33
24375	18:16:23.50	-21:23:35.38	19.20 ± 0.07	4.34

Last 5 photometry measurements

Observation date	I mag	seeing
2460237.941 (2023-Oct-20.441)	15.70 ± 0.03	3.79
2460239.941 (2023-Oct-22.441)	15.81 ± 0.03	4.06
2460244.875 (2023-Oct-27.375)	15.75 ± 0.02	4.29
2460245.870 (2023-Oct-28.370)	15.76 ± 0.02	3.66
2460246.869 (2023-Oct-29.369)	15.74 ± 0.02	3.88

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 45624.70)

Single lens fit parameters

t_max	=	JD 2459064.47	±	0.05 UT (2020-Aug-2.97)
t_E	=	27.52	±	1.09 days
u₀	=	0.0122	±	0.0029
I_base	=	18.89	±	0.13

External data

Gzipped FITS finder chart

All photometry data

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