MOA 2021-BLG-439

Event Parameters

Internal ID:gb4-R-2-107081
Discovery date:2021-10-15T20:06:27
RA:17:52:30.08
Dec:-30:47:54.40
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
25797 17:52:29.77 -30:47:53.43 18.43 ± 0.07 4.78
25940 17:52:30.21 -30:47:56.54 14.84 ± 0.06 3.05
25941 17:52:30.22 -30:47:51.87 17.02 ± 0.05 2.36

Last 5 photometry measurements

Observation dateI magseeing
2460611.899 (2024-Oct-28.399) 99.99 ± 99.99 4.57
2460611.911 (2024-Oct-28.411) 99.99 ± 99.99 4.73
2460611.921 (2024-Oct-28.421) 99.99 ± 99.99 5.32
2460611.930 (2024-Oct-28.430) 99.99 ± 99.99 4.46
2460614.875 (2024-Oct-31.375) 99.99 ± 99.99 5.08

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

Single lens fit parameters

tmax =JD 2459496.90 ± 0.00 UT (2021-Oct-9.40)
tE =11.57 ± 0.00 days
u0 =0.0052 ± 0.0005
Ibase =20.65 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice