MOA 2021-BLG-421

Previous event Next event Return to alert index

Event Parameters

Internal ID:	gb4-R-1-187329
Discovery date:	2021-10-05T14:13:23
RA:	17:52:14.08
Dec:	-30:11:07.20
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
90275	17:52:14.38	-30:11:07.19	14.08 ± 0.04	3.66

Last 5 photometry measurements

Observation date	I mag	seeing
2460572.944 (2024-Sep-19.444)	18.71 ± 0.73	4.46
2460572.954 (2024-Sep-19.454)	19.17 ± 1.03	4.32
2460572.966 (2024-Sep-19.466)	17.27 ± 1.74	5.84
2460574.031 (2024-Sep-20.531)	17.12 ± 0.35	5.36
2460575.919 (2024-Sep-22.419)	16.99 ± 0.24	5.11

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

Single lens fit parameters

t_max	=	JD 2459492.79	±	0.02 UT (2021-Oct-5.29)
t_E	=	6.54	±	3.23 days
u₀	=	0.0065	±	0.0032
I_base	=	20.28	±	0.27

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice