MOA 2022-BLG-523

Event Parameters

Internal ID:gb19-R-4-8403
Discovery date:2022-09-20T14:07:16
RA:18:16:16.40
Dec:-25:55:16.70
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
37803 18:16:16.28 -25:55:12.81 20.01 ± 0.54 4.14
37873 18:16:16.45 -25:55:16.04 17.56 ± 0.08 0.11
37956 18:16:16.56 -25:55:11.75 18.38 ± 0.06 4.86
38023 18:16:16.68 -25:55:13.17 17.42 ± 0.05 4.61
38046 18:16:16.72 -25:55:15.79 15.33 ± 0.03 3.94

Last 5 photometry measurements

Observation dateI magseeing
2460235.930 (2023-Oct-18.430) 17.55 ± 0.05 2.38
2460239.943 (2023-Oct-22.443) 17.56 ± 0.10 3.39
2460244.878 (2023-Oct-27.378) 17.29 ± 0.10 4.32
2460245.873 (2023-Oct-28.373) 17.49 ± 0.09 3.29
2460246.872 (2023-Oct-29.372) 17.55 ± 0.08 3.48

Calibration: I = 27.40 - 2.5 log10(ΔF + 8629.79)

Single lens fit parameters

tmax =JD 2459857.17 ± 0.02 UT (2022-Oct-4.67)
tE =18.99 ± 0.34 days
u0 =0.1888 ± 0.0053
Ibase =17.31 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice