MOA 2019-BLG-248

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Event Parameters

Internal ID:	gb4-R-7-57657
Discovery date:	2019-06-05T15:51:58
RA:	17:57:06.97
Dec:	-31:21:50.71
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
89198	17:57:07.10	-31:21:50.35	16.39 ± 0.03	2.60
89224	17:57:07.03	-31:21:53.82	16.12 ± 0.07	3.02
89255	17:57:06.96	-31:21:48.53	17.76 ± 0.08	2.93
89307	17:57:06.81	-31:21:51.60	17.42 ± 0.14	1.54
89376	17:57:06.68	-31:21:51.10	17.68 ± 0.28	3.28

Last 5 photometry measurements

Observation date	I mag	seeing
2460246.887 (2023-Oct-29.387)	19.81 ± 1.12	3.35
2460246.898 (2023-Oct-29.398)	20.05 ± 1.11	3.12
2460246.909 (2023-Oct-29.409)	20.26 ± 1.60	3.39
2460246.920 (2023-Oct-29.420)	19.25 ± 0.75	3.71
2460246.929 (2023-Oct-29.429)	19.86 ± 1.44	3.61

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 0.00)

Single lens fit parameters

t_max	=	JD 2458642.85	±	0.03 UT (2019-Jun-8.35)
t_E	=	23.21	±	0.61 days
u₀	=	0.1382	±	0.0057
I_base	=	18.97	±	0.20

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice