MOA 2023-BLG-431

Event Parameters

Internal ID:gb4-R-2-124012
Discovery date:2023-09-15T15:11:10
RA:17:52:18.59
Dec:-30:36:54.77
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
68552 17:52:18.34 -30:36:54.47 15.85 ± 0.07 4.07
68630 17:52:18.65 -30:36:53.48 15.56 ± 0.12 0.75

Last 5 photometry measurements

Observation dateI magseeing
2460611.899 (2024-Oct-28.399) 15.49 ± 0.03 4.69
2460611.911 (2024-Oct-28.411) 15.51 ± 0.03 4.96
2460611.921 (2024-Oct-28.421) 15.44 ± 0.04 5.28
2460611.930 (2024-Oct-28.430) 15.52 ± 0.03 4.54
2460614.875 (2024-Oct-31.375) 15.50 ± 0.03 5.27

Calibration: I = 27.40 - 2.5 log10(ΔF + 54500.44)

Single lens fit parameters

tmax =JD 2460207.21 ± 0.06 UT (2023-Sep-19.71)
tE =2.12 ± 5.59 days
u0 =6.2996 ± 4.9908
Ibase =9.13 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice