MOA 2019-BLG-220

Previous event Next event Return to alert index

Event Parameters

Internal ID:	gb2-R-1-35000
Discovery date:	2019-05-22T18:02:01
RA:	17:51:34.90
Dec:	-33:53:57.30
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
8713	17:51:34.57	-33:53:57.26	17.68 ± 0.07	4.90
8761	17:51:34.80	-33:53:55.38	17.41 ± 0.05	2.34
8781	17:51:34.84	-33:53:52.73	16.86 ± 0.04	4.44
8820	17:51:35.02	-33:53:58.92	16.59 ± 0.05	2.53

Last 5 photometry measurements

Observation date	I mag	seeing
2460573.012 (2024-Sep-19.512)	18.27 ± 0.40	5.32
2460573.015 (2024-Sep-19.515)	20.59 ± 2.08	4.58
2460574.027 (2024-Sep-20.527)	18.55 ± 0.52	5.28
2460574.040 (2024-Sep-20.540)	18.88 ± 0.56	4.95
2460575.929 (2024-Sep-22.429)	99.99 ± 99.99	4.51

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

Single lens fit parameters

t_max	=	JD 2458624.38	±	0.07 UT (2019-May-20.88)
t_E	=	15.71	±	0.67 days
u₀	=	0.2955	±	0.0242
I_base	=	18.25	±	0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice