MOA 2022-BLG-438

Event Parameters

Internal ID:gb16-R-4-24961
Discovery date:2022-08-11T11:23:31
RA:18:11:12.12
Dec:-29:33:26.17
Current assessment:microlensing/cv
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
163719 18:11:11.80 -29:33:25.25 18.78 ± 0.12 4.91
163816 18:11:12.01 -29:33:24.95 17.94 ± 0.14 2.10
163889 18:11:12.15 -29:33:22.17 17.17 ± 0.13 3.54
163962 18:11:12.24 -29:33:27.09 19.29 ± 0.13 1.86
164028 18:11:12.40 -29:33:24.18 17.17 ± 0.14 3.54

Last 5 photometry measurements

Observation dateI magseeing
2460245.910 (2023-Oct-28.410) 99.99 ± 99.99 3.02
2460245.939 (2023-Oct-28.439) 20.41 ± 1.51 3.50
2460246.866 (2023-Oct-29.366) 99.99 ± 99.99 3.39
2460246.913 (2023-Oct-29.413) 19.54 ± 0.45 3.17
2460246.937 (2023-Oct-29.437) 19.74 ± 0.99 3.76

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

Single lens fit parameters

tmax =JD 2459803.60 ± 0.05 UT (2022-Aug-12.10)
tE =21.93 ± 2.29 days
u0 =0.1072 ± 0.0157
Ibase =19.92 ± 0.19

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice