MOA 2019-BLG-434

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Event Parameters

Internal ID:	gb4-R-8-75860
Discovery date:	2019-09-21T15:35:14
RA:	17:54:49.80
Dec:	-31:04:31.14
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
166006	17:54:49.87	-31:04:31.84	18.18 ± 0.09	1.56
166023	17:54:49.85	-31:04:34.51	16.52 ± 0.18	3.13
166095	17:54:49.69	-31:04:36.16	16.17 ± 0.12	4.64
166184	17:54:49.50	-31:04:32.60	18.15 ± 0.14	3.42

Last 5 photometry measurements

Observation date	I mag	seeing
2460246.887 (2023-Oct-29.387)	99.99 ± 99.99	3.35
2460246.898 (2023-Oct-29.398)	99.99 ± 99.99	2.90
2460246.909 (2023-Oct-29.409)	99.99 ± 99.99	3.33
2460246.920 (2023-Oct-29.420)	99.99 ± 99.99	3.61
2460246.929 (2023-Oct-29.429)	19.79 ± 0.97	3.60

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

Single lens fit parameters

t_max	=	JD 2458752.12	±	0.10 UT (2019-Sep-25.62)
t_E	=	64.96	±	6.69 days
u₀	=	0.1360	±	0.0171
I_base	=	19.84	±	0.29

External data

Gzipped FITS finder chart

All photometry data

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