MOA 2023-BLG-020

Event Parameters

Internal ID:gb10-R-3-77333
Discovery date:2023-02-24T23:08:28
RA:17:59:00.85
Dec:-27:39:01.51
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
58198 17:59:00.74 -27:39:00.52 15.99 ± 0.08 2.18
58304 17:59:00.90 -27:39:00.61 16.82 ± 0.13 0.33
58305 17:59:00.90 -27:38:58.20 17.57 ± 0.12 2.81
58370 17:59:01.02 -27:38:58.91 17.07 ± 0.17 2.69
58397 17:59:01.03 -27:39:03.54 14.53 ± 0.05 3.34

Last 5 photometry measurements

Observation dateI magseeing
2460246.852 (2023-Oct-29.352) 16.71 ± 0.06 3.44
2460246.886 (2023-Oct-29.386) 16.90 ± 0.07 3.50
2460246.897 (2023-Oct-29.397) 16.72 ± 0.05 3.12
2460246.908 (2023-Oct-29.408) 16.76 ± 0.06 3.48
2460246.919 (2023-Oct-29.419) 16.82 ± 0.11 3.93

Calibration: I = 27.40 - 2.5 log10(ΔF + 16998.09)

Single lens fit parameters

tmax =JD 2460005.15 ± 0.13 UT (2023-Mar-1.65)
tE =27.53 ± 2.52 days
u0 =0.4549 ± 0.0602
Ibase =17.49 ± 0.32

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice