MOA 2021-BLG-389

Event Parameters

Internal ID:gb9-R-8-72986
Discovery date:2021-09-15T14:49:18
RA:18:01:33.65
Dec:-29:07:56.73
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
43746 18:01:33.95 -29:07:56.66 15.45 ± 0.05 4.67
43779 18:01:33.82 -29:07:59.15 15.05 ± 0.07 3.47
43881 18:01:33.61 -29:07:57.44 16.60 ± 0.10 0.13
43991 18:01:33.31 -29:07:56.25 17.34 ± 0.15 4.14
44015 18:01:33.34 -29:07:58.40 14.37 ± 0.09 3.85

Last 5 photometry measurements

Observation dateI magseeing
2460246.884 (2023-Oct-29.384) 16.71 ± 0.08 3.55
2460246.896 (2023-Oct-29.396) 16.61 ± 0.07 3.27
2460246.906 (2023-Oct-29.406) 16.63 ± 0.07 3.47
2460246.918 (2023-Oct-29.418) 16.52 ± 0.07 3.62
2460246.927 (2023-Oct-29.427) 16.78 ± 0.10 3.52

Calibration: I = 27.40 - 2.5 log10(ΔF + 20835.31)

Single lens fit parameters

tmax =JD 2459474.27 ± 0.03 UT (2021-Sep-16.77)
tE =3.62 ± 0.15 days
u0 =0.5594 ± 0.0058
Ibase =16.64 ± 0.25

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice