MOA 2017-BLG-199

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Event Parameters

Internal ID:	gb12-R-1-79974
Discovery date:	2017-04-23T15:40:36
RA:	18:04:29.32
Dec:	-30:10:56.87
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
104171	18:04:29.22	-30:11:00.28	18.27 ± 0.08	4.66
104226	18:04:29.31	-30:10:52.26	17.74 ± 0.07	4.35
104238	18:04:29.34	-30:10:54.99	17.87 ± 0.05	1.44
104252	18:04:29.42	-30:11:00.61	19.05 ± 0.10	4.65
104321	18:04:29.64	-30:10:55.50	17.29 ± 0.04	3.77

Last 5 photometry measurements

Observation date	I mag	seeing
2460244.915 (2023-Oct-27.415)	17.49 ± 0.16	4.78
2460245.869 (2023-Oct-28.369)	17.77 ± 0.15	3.94
2460245.912 (2023-Oct-28.412)	17.96 ± 0.22	4.01
2460246.868 (2023-Oct-29.368)	17.72 ± 0.14	4.16
2460246.916 (2023-Oct-29.416)	17.94 ± 0.20	3.95

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 6462.49)

Single lens fit parameters

t_max	=	JD 2457866.01	±	0.01 UT (2017-Apr-22.51)
t_E	=	18.53	±	1.33 days
u₀	=	0.0677	±	0.0051
I_base	=	18.88	±	0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice