MOA 2022-BLG-228

Event Parameters

Internal ID:gb12-R-2-21460
Discovery date:2022-05-05T16:17:18
RA:18:04:18.28
Dec:-30:31:17.68
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
90381 18:04:18.25 -30:31:16.96 18.06 ± 0.07 0.91
90526 18:04:18.67 -30:31:17.41 18.45 ± 0.10 4.65

Last 5 photometry measurements

Observation dateI magseeing
2460536.837 (2024-Aug-14.337) 18.01 ± 0.06 3.30
2460536.910 (2024-Aug-14.410) 18.13 ± 0.06 2.20
2460536.986 (2024-Aug-14.486) 18.03 ± 0.06 2.86
2460537.060 (2024-Aug-14.560) 18.12 ± 0.19 4.28
2460537.131 (2024-Aug-14.631) 20.79 ± 8.47 5.59

Calibration: I = 27.40 - 2.5 log10(ΔF + 5465.12)

Single lens fit parameters

tmax =JD 2459716.89 ± 0.02 UT (2022-May-17.39)
tE =26.21 ± 0.92 days
u0 =0.0964 ± 0.0073
Ibase =17.53 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice