MOA 2023-BLG-220

Event Parameters

Internal ID:gb1-R-9-18894
Discovery date:2023-05-27T16:24:47
RA:17:48:14.54
Dec:-33:47:16.43
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
56600 17:48:14.68 -33:47:18.59 17.72 ± 0.05 2.97
56620 17:48:14.62 -33:47:14.27 20.09 ± 0.42 3.33
56676 17:48:14.51 -33:47:19.69 16.37 ± 0.05 2.79
56731 17:48:14.37 -33:47:15.80 17.87 ± 0.07 2.03
56750 17:48:14.31 -33:47:14.16 17.22 ± 0.06 3.74
56769 17:48:14.27 -33:47:19.27 17.12 ± 0.03 3.71

Last 5 photometry measurements

Observation dateI magseeing
2460245.923 (2023-Oct-28.423) 20.18 ± 1.30 3.67
2460245.937 (2023-Oct-28.437) 20.24 ± 1.77 3.78
2460246.859 (2023-Oct-29.359) 20.81 ± 1.64 3.70
2460246.892 (2023-Oct-29.392) 21.94 ± 5.17 3.73
2460246.926 (2023-Oct-29.426) 99.99 ± 99.99 3.76

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

Single lens fit parameters

tmax =JD 2460092.43 ± 0.01 UT (2023-May-27.93)
tE =3875.78 ± 3547.06 days
u0 =0.0001 ± 0.0008
Ibase =27.23 ± 0.14

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice