MOA 2023-BLG-280

Event Parameters

Internal ID:gb4-R-1-206161
Discovery date:2023-06-22T20:39:45
RA:17:53:58.37
Dec:-30:24:28.94
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
68503 17:53:58.21 -30:24:31.94 15.76 ± 0.05 4.61
68504 17:53:58.23 -30:24:28.06 16.64 ± 0.06 2.52
68548 17:53:58.30 -30:24:26.09 16.56 ± 0.04 2.84
68612 17:53:58.47 -30:24:27.78 16.61 ± 0.21 0.92

Last 5 photometry measurements

Observation dateI magseeing
2460246.887 (2023-Oct-29.387) 16.55 ± 0.04 3.65
2460246.898 (2023-Oct-29.398) 16.53 ± 0.04 3.34
2460246.909 (2023-Oct-29.409) 16.56 ± 0.06 3.59
2460246.920 (2023-Oct-29.420) 16.53 ± 0.05 3.82
2460246.929 (2023-Oct-29.429) 16.61 ± 0.05 3.71

Calibration: I = 27.40 - 2.5 log10(ΔF + 20701.41)

Single lens fit parameters

tmax =JD 2460119.13 ± 0.02 UT (2023-Jun-23.63)
tE =3.31 ± 0.35 days
u0 =0.2455 ± 0.0355
Ibase =18.57 ± 0.26

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice