MOA 2021-BLG-342

Previous event Next event Return to alert index

Event Parameters

Internal ID:	gb19-R-9-18291
Discovery date:	2021-08-20T19:16:44
RA:	18:19:11.19
Dec:	-25:03:10.19
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
55074	18:19:11.22	-25:03:06.90	16.49 ± 0.13	4.13
55110	18:19:11.13	-25:03:10.70	15.97 ± 0.09	0.34
55190	18:19:11.00	-25:03:12.29	17.99 ± 0.08	2.66
55209	18:19:10.97	-25:03:07.84	17.93 ± 0.07	3.94

Last 5 photometry measurements

Observation date	I mag	seeing
2460599.954 (2024-Oct-16.454)	15.98 ± 0.02	3.48
2460602.898 (2024-Oct-19.398)	15.97 ± 0.01	3.50
2460610.889 (2024-Oct-27.389)	16.21 ± 0.11	5.22
2460611.932 (2024-Oct-28.432)	16.01 ± 0.05	4.97
2460614.894 (2024-Oct-31.394)	16.13 ± 0.07	4.99

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 37462.78)

Single lens fit parameters

t_max	=	JD 2459477.91	±	0.92 UT (2021-Sep-20.41)
t_E	=	88.87	±	24.90 days
u₀	=	0.8976	±	0.5753
I_base	=	16.81	±	0.21

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice