MOA 2022-BLG-439

Event Parameters

Internal ID:gb14-R-7-130215
Discovery date:2022-08-11T13:28:28
RA:18:08:48.17
Dec:-27:48:27.91
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
8735 18:08:48.37 -27:48:30.14 16.86 ± 0.10 3.83
8863 18:08:48.15 -27:48:29.92 15.04 ± 0.03 1.52
8971 18:08:48.02 -27:48:30.27 17.15 ± 0.09 2.36
8990 18:08:47.95 -27:48:26.89 17.45 ± 0.10 2.93
8991 18:08:47.96 -27:48:31.99 17.94 ± 0.13 4.31

Last 5 photometry measurements

Observation dateI magseeing
2460246.855 (2023-Oct-29.355) 20.66 ± 4.31 3.55
2460246.889 (2023-Oct-29.389) 99.99 ± 99.99 3.62
2460246.901 (2023-Oct-29.401) 19.18 ± 1.00 3.04
2460246.911 (2023-Oct-29.411) 18.23 ± 0.45 3.53
2460246.923 (2023-Oct-29.423) 18.06 ± 0.48 3.81

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

Single lens fit parameters

tmax =JD 2459804.49 ± 0.01 UT (2022-Aug-12.99)
tE =7.94 ± 0.27 days
u0 =0.2947 ± 0.0166
Ibase =17.67 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice