MOA 2017-BLG-431

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Event Parameters

Internal ID:	gb5-R-10-111977
Discovery date:	2017-08-22T07:08:38
RA:	17:54:58.92
Dec:	-28:26:21.61
Current assessment:	microlensing/cv

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
39833	17:54:59.09	-28:26:25.92	16.90 ± 0.02	4.85
39879	17:54:58.89	-28:26:19.73	16.49 ± 0.02	2.61
39936	17:54:58.71	-28:26:25.24	15.49 ± 0.03	4.01

Last 5 photometry measurements

Observation date	I mag	seeing
2460518.906 (2024-Jul-27.406)	20.66 ± 3.17	3.50
2460518.917 (2024-Jul-27.417)	99.99 ± 99.99	3.83
2460518.928 (2024-Jul-27.428)	99.99 ± 99.99	3.15
2460519.044 (2024-Jul-27.544)	99.99 ± 99.99	3.49
2460519.047 (2024-Jul-27.547)	99.99 ± 99.99	3.51

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

Single lens fit parameters

t_max	=	JD 2457987.24	±	0.00 UT (2017-Aug-21.74)
t_E	=	625.89	±	212.10 days
u₀	=	0.0005	±	0.0003
I_base	=	24.19	±	0.20

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice