MOA 2022-BLG-231

Event Parameters

Internal ID:gb16-R-4-22567
Discovery date:2022-05-10T16:11:31
RA:18:11:09.50
Dec:-29:38:01.62
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
64942 18:11:09.20 -29:38:02.20 17.25 ± 0.09 4.82
64985 18:11:09.26 -29:37:58.71 18.90 ± 0.17 4.48
65056 18:11:09.39 -29:38:02.32 19.13 ± 0.16 2.48
65114 18:11:09.50 -29:38:00.39 18.72 ± 0.16 0.90
65242 18:11:09.77 -29:38:03.01 15.74 ± 0.11 3.66
65243 18:11:09.77 -29:37:59.00 15.79 ± 0.04 3.74

Last 5 photometry measurements

Observation dateI magseeing
2460245.910 (2023-Oct-28.410) 18.87 ± 0.40 3.07
2460245.939 (2023-Oct-28.439) 18.06 ± 0.22 3.52
2460246.866 (2023-Oct-29.366) 18.53 ± 0.22 3.43
2460246.913 (2023-Oct-29.413) 19.00 ± 0.44 3.24
2460246.937 (2023-Oct-29.437) 18.16 ± 0.23 3.80

Calibration: I = 27.40 - 2.5 log10(ΔF + 2956.65)

Single lens fit parameters

tmax =JD 2459716.47 ± 0.05 UT (2022-May-16.97)
tE =35.34 ± 1.70 days
u0 =0.0153 ± 0.0376
Ibase =19.82 ± 0.16

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice