MOA 2017-BLG-441

Previous event Next event Return to alert index

Event Parameters

Internal ID:	gb17-R-4-18808
Discovery date:	2017-08-30T14:12:49
RA:	18:09:31.83
Dec:	-27:43:20.63
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
118157	18:09:31.70	-27:43:20.61	17.83 ± 0.06	2.43
118218	18:09:31.83	-27:43:23.86	19.13 ± 0.17	4.02
118219	18:09:31.84	-27:43:15.47	16.97 ± 0.10	4.77
118246	18:09:31.87	-27:43:20.28	19.00 ± 0.22	0.25

Last 5 photometry measurements

Observation date	I mag	seeing
2460570.962 (2024-Sep-17.462)	19.04 ± 0.45	3.49
2460571.002 (2024-Sep-17.502)	18.73 ± 0.52	4.34
2460571.035 (2024-Sep-17.535)	19.22 ± 1.16	4.41
2460572.901 (2024-Sep-19.401)	18.62 ± 0.22	3.92
2460572.948 (2024-Sep-19.448)	18.54 ± 0.24	3.94

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 2280.34)

Single lens fit parameters

t_max	=	JD 2458000.94	±	0.00 UT (2017-Sep-4.44)
t_E	=	24.05	±	0.22 days
u₀	=	0.0159	±	0.0002
I_base	=	18.41	±	0.21

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice