MOA 2023-BLG-440

Event Parameters

Internal ID:gb8-R-10-91573
Discovery date:2023-09-25T16:21:55
RA:18:02:48.38
Dec:-30:24:06.45
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
77347 18:02:48.41 -30:24:10.48 16.14 ± 0.04 3.76
77361 18:02:48.33 -30:24:02.70 17.89 ± 0.10 4.56

Last 5 photometry measurements

Observation dateI magseeing
2460245.888 (2023-Oct-28.388) 18.29 ± 0.35 3.61
2460245.921 (2023-Oct-28.421) 18.41 ± 0.60 3.74
2460246.858 (2023-Oct-29.358) 18.88 ± 0.54 3.72
2460246.891 (2023-Oct-29.391) 18.42 ± 0.42 3.82
2460246.925 (2023-Oct-29.425) 18.98 ± 0.84 3.56

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

Single lens fit parameters

tmax =JD 2460217.01 ± 0.12 UT (2023-Sep-29.51)
tE =17.43 ± 0.90 days
u0 =0.2909 ± 0.0244
Ibase =18.28 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice