MOA 2023-BLG-398

Event Parameters

Internal ID:gb20-R-8-8461
Discovery date:2023-08-23T07:42:30
RA:18:19:32.82
Dec:-23:42:38.53
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
50522 18:19:33.10 -23:42:39.38 17.78 ± 0.12 4.66
50577 18:19:33.03 -23:42:42.11 18.30 ± 0.07 4.71
50629 18:19:32.94 -23:42:38.78 17.24 ± 0.09 2.32
50677 18:19:32.86 -23:42:34.44 18.40 ± 0.08 4.98
50725 18:19:32.79 -23:42:38.86 17.32 ± 0.15 0.31
50776 18:19:32.65 -23:42:36.30 18.78 ± 0.09 3.46
50833 18:19:32.58 -23:42:41.00 18.94 ± 0.09 3.42
50861 18:19:32.54 -23:42:37.36 18.33 ± 0.10 3.81

Last 5 photometry measurements

Observation dateI magseeing
2460239.942 (2023-Oct-22.442) 17.30 ± 0.07 3.54
2460244.877 (2023-Oct-27.377) 17.51 ± 0.11 4.41
2460245.871 (2023-Oct-28.371) 17.40 ± 0.06 3.15
2460246.850 (2023-Oct-29.350) 17.40 ± 0.07 3.56
2460246.871 (2023-Oct-29.371) 17.22 ± 0.04 3.49

Calibration: I = 27.40 - 2.5 log10(ΔF + 10774.57)

Single lens fit parameters

tmax =JD 2460185.73 ± 0.03 UT (2023-Aug-29.23)
tE =35.09 ± 0.97 days
u0 =0.1414 ± 0.0056
Ibase =18.56 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice