MOA 2017-BLG-277

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Event Parameters

Internal ID:	gb3-R-5-32027
Discovery date:	2017-05-23T11:14:52
RA:	17:51:51.33
Dec:	-33:29:58.37
Current assessment:	microlensing

A transient event found by MOA. Possible caustic crossing.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
17636	17:51:51.13	-33:30:00.55	18.22 ± 0.07	4.35
17672	17:51:51.27	-33:29:55.87	18.59 ± 0.09	2.47
17700	17:51:51.39	-33:29:57.48	18.58 ± 0.10	0.45

Last 5 photometry measurements

Observation date	I mag	seeing
2460611.900 (2024-Oct-28.400)	20.08 ± 0.83	4.75
2460611.912 (2024-Oct-28.412)	99.99 ± 99.99	5.60
2460611.923 (2024-Oct-28.423)	99.99 ± 99.99	5.40
2460611.931 (2024-Oct-28.431)	19.06 ± 0.39	4.57
2460614.876 (2024-Oct-31.376)	19.90 ± 1.57	5.34

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 3385.32)

Single lens fit parameters

t_max	=	JD 2457900.85	±	0.01 UT (2017-May-27.35)
t_E	=	16.54	±	0.33 days
u₀	=	0.2298	±	0.0055
I_base	=	18.25	±	0.12

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice