MOA 2020-BLG-231

Event Parameters

Internal ID:gb5-R-4-126267
Discovery date:2020-08-17T09:55:55
RA:17:52:57.93
Dec:-29:32:25.18
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
143895 17:52:57.69 -29:32:22.26 17.74 ± 0.10 4.55
143930 17:52:57.77 -29:32:23.71 17.94 ± 0.12 2.90
143986 17:52:57.86 -29:32:20.56 17.60 ± 0.11 4.44
144055 17:52:58.02 -29:32:19.96 17.02 ± 0.13 4.83
144106 17:52:58.08 -29:32:27.01 19.05 ± 0.28 2.85
144182 17:52:58.22 -29:32:24.43 16.78 ± 0.12 3.35

Last 5 photometry measurements

Observation dateI magseeing
2460246.848 (2023-Oct-29.348) 99.99 ± 99.99 3.70
2460246.883 (2023-Oct-29.383) 99.99 ± 99.99 3.33
2460246.895 (2023-Oct-29.395) 21.40 ± 3.22 3.31
2460246.905 (2023-Oct-29.405) 21.34 ± 3.53 3.33
2460246.917 (2023-Oct-29.417) 19.64 ± 0.77 3.38

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

Single lens fit parameters

tmax =JD 2459079.74 ± 0.00 UT (2020-Aug-18.24)
tE =2.49 ± 0.08 days
u0 =0.0102 ± 0.0014
Ibase =18.25 ± 0.36

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice