MOA 2022-BLG-531

Event Parameters

Internal ID:gb17-R-7-42059
Discovery date:2022-09-23T11:09:11
RA:18:12:45.88
Dec:-27:56:30.51
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
177613 18:12:46.06 -27:56:30.93 14.65 ± 0.03 3.07
177614 18:12:46.09 -27:56:34.34 15.73 ± 0.05 4.85
177768 18:12:45.81 -27:56:29.32 15.80 ± 0.10 1.90
177820 18:12:45.74 -27:56:34.97 18.41 ± 0.17 4.24
177874 18:12:45.66 -27:56:30.46 16.70 ± 0.17 2.55

Last 5 photometry measurements

Observation dateI magseeing
2460536.973 (2024-Aug-14.473) 21.19 ± 3.41 2.68
2460537.010 (2024-Aug-14.510) 99.99 ± 99.99 2.98
2460537.047 (2024-Aug-14.547) 19.55 ± 1.18 4.21
2460537.082 (2024-Aug-14.582) 99.99 ± 99.99 4.28
2460537.119 (2024-Aug-14.619) 17.95 ± 0.95 5.06

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

Single lens fit parameters

tmax =JD 2459846.17 ± 0.01 UT (2022-Sep-23.67)
tE =43838.07 ± 43511.03 days
u0 =0.0000 ± 0.0001
Ibase =30.80 ± 0.23

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice