MOA 2022-BLG-494

Event Parameters

Internal ID:gb21-R-7-4357
Discovery date:2022-09-10T14:19:21
RA:18:18:36.17
Dec:-22:22:31.73
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
174568 18:18:36.44 -22:22:31.35 19.93 ± 0.13 4.63
174613 18:18:36.35 -22:22:29.21 17.71 ± 0.05 4.62
174614 18:18:36.36 -22:22:35.45 19.34 ± 0.08 4.66
174932 18:18:35.84 -22:22:30.84 16.23 ± 0.06 4.39
174933 18:18:35.85 -22:22:34.24 14.36 ± 0.05 4.37

Last 5 photometry measurements

Observation dateI magseeing
2460536.121 (2024-Aug-13.621) 19.60 ± 0.39 3.10
2460536.868 (2024-Aug-14.368) 99.99 ± 99.99 3.21
2460536.943 (2024-Aug-14.443) 22.35 ± 4.36 2.47
2460537.019 (2024-Aug-14.519) 21.91 ± 4.62 3.30
2460537.091 (2024-Aug-14.591) 19.61 ± 1.55 4.45

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

Single lens fit parameters

tmax =JD 2459833.79 ± 0.03 UT (2022-Sep-11.29)
tE =16.81 ± 1.10 days
u0 =0.1164 ± 0.0145
Ibase =19.16 ± 0.14

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice