MOA 2022-BLG-004

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Event Parameters

Internal ID:	gb17-R-9-23110
Discovery date:	2022-02-15T21:34:51
RA:	18:13:20.87
Dec:	-27:17:57.31
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
148717	18:13:21.07	-27:17:57.46	17.82 ± 0.17	3.52
148861	18:13:20.84	-27:17:58.05	16.39 ± 0.25	0.35
148947	18:13:20.68	-27:17:59.69	17.58 ± 0.19	2.67
149019	18:13:20.54	-27:17:56.72	17.18 ± 0.19	4.03

Last 5 photometry measurements

Observation date	I mag	seeing
2460245.899 (2023-Oct-28.399)	16.34 ± 0.03	3.02
2460245.931 (2023-Oct-28.431)	16.26 ± 0.04	3.26
2460246.862 (2023-Oct-29.362)	16.26 ± 0.03	3.53
2460246.903 (2023-Oct-29.403)	16.32 ± 0.04	3.30
2460246.931 (2023-Oct-29.431)	16.34 ± 0.06	3.82

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 25327.95)

Single lens fit parameters

t_max	=	JD 2459609.45	±	1.03 UT (2022-Jan-29.95)
t_E	=	24.20	±	1.03 days
u₀	=	0.0005	±	0.1091
I_base	=	16.33	±	0.20

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice