MOA 2022-BLG-291

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Event Parameters

Internal ID:	gb17-R-3-31819
Discovery date:	2022-06-16T13:05:49
RA:	18:10:48.62
Dec:	-27:21:54.20
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
158903	18:10:48.55	-27:21:49.17	18.12 ± 0.19	4.83
158999	18:10:48.69	-27:21:53.29	15.91 ± 0.04	0.50
159000	18:10:48.72	-27:21:49.10	15.59 ± 0.12	4.73
159074	18:10:48.84	-27:21:53.80	16.69 ± 0.06	2.43

Last 5 photometry measurements

Observation date	I mag	seeing
2460245.899 (2023-Oct-28.399)	15.83 ± 0.02	2.96
2460245.931 (2023-Oct-28.431)	15.83 ± 0.03	3.29
2460246.862 (2023-Oct-29.362)	15.85 ± 0.02	3.57
2460246.903 (2023-Oct-29.403)	15.84 ± 0.02	3.37
2460246.931 (2023-Oct-29.431)	15.82 ± 0.03	3.72

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 39591.32)

Single lens fit parameters

t_max	=	JD 2459772.35	±	0.05 UT (2022-Jul-11.85)
t_E	=	31.82	±	0.66 days
u₀	=	0.5187	±	0.0182
I_base	=	16.46	±	0.22

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice