MOA 2022-BLG-498

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Event Parameters

Internal ID:	gb1-R-2-64357
Discovery date:	2022-09-10T16:05:16
RA:	17:44:47.47
Dec:	-33:54:41.26
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
7269	17:44:47.17	-33:54:40.09	15.70 ± 0.05	4.54
7336	17:44:47.38	-33:54:36.43	15.90 ± 0.03	4.77
7379	17:44:47.49	-33:54:40.79	17.20 ± 0.06	0.34
7404	17:44:47.61	-33:54:37.90	16.27 ± 0.09	3.14

Last 5 photometry measurements

Observation date	I mag	seeing
2460245.923 (2023-Oct-28.423)	17.13 ± 0.07	3.91
2460245.937 (2023-Oct-28.437)	17.22 ± 0.10	3.92
2460246.859 (2023-Oct-29.359)	17.29 ± 0.05	3.86
2460246.892 (2023-Oct-29.392)	17.09 ± 0.05	3.89
2460246.926 (2023-Oct-29.426)	17.05 ± 0.07	3.88

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 12022.64)

Single lens fit parameters

t_max	=	JD 2459842.85	±	0.23 UT (2022-Sep-20.35)
t_E	=	31.25	±	8.07 days
u₀	=	1.1301	±	0.6137
I_base	=	15.68	±	0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice