MOA 2021-BLG-311

Event Parameters

Internal ID:gb3-R-2-41362
Discovery date:2021-08-06T11:40:05
RA:17:53:54.12
Dec:-32:31:36.97
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
52056 17:53:53.93 -32:31:38.30 17.78 ± 0.13 3.71
52057 17:53:53.93 -32:31:34.68 17.69 ± 0.17 3.64
52097 17:53:54.08 -32:31:34.55 17.33 ± 0.08 2.21
52148 17:53:54.13 -32:31:38.48 16.09 ± 0.16 2.22
52159 17:53:54.26 -32:31:34.54 18.51 ± 0.12 2.24
52177 17:53:54.33 -32:31:32.76 17.87 ± 0.11 4.27

Last 5 photometry measurements

Observation dateI magseeing
2460246.899 (2023-Oct-29.399) 99.99 ± 99.99 2.96
2460246.910 (2023-Oct-29.410) 22.31 ± 3.29 3.21
2460246.922 (2023-Oct-29.422) 21.82 ± 2.47 3.68
2460246.930 (2023-Oct-29.430) 99.99 ± 99.99 3.53
2460246.933 (2023-Oct-29.433) 20.91 ± 1.51 3.70

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

Single lens fit parameters

tmax =JD 2459432.02 ± 0.02 UT (2021-Aug-5.52)
tE =50.50 ± 5.62 days
u0 =0.0172 ± 0.0023
Ibase =20.79 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice