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
2460244.915 (2023-Oct-27.415) 18.00 ± 0.20 4.37
2460245.869 (2023-Oct-28.369) 18.16 ± 0.11 3.39
2460245.912 (2023-Oct-28.412) 17.85 ± 0.11 3.51
2460246.868 (2023-Oct-29.368) 18.11 ± 0.10 3.63
2460246.916 (2023-Oct-29.416) 17.87 ± 0.11 3.41

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