MOA 2021-BLG-250

Event Parameters

Internal ID:gb6-R-8-2878
Discovery date:2021-07-11T15:50:26
RA:17:56:54.11
Dec:-27:38:33.94
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
71424 17:56:54.39 -27:38:36.40 18.81 ± 0.06 4.84
71445 17:56:54.36 -27:38:33.66 20.64 ± 0.15 4.20
71607 17:56:53.96 -27:38:30.84 19.29 ± 0.06 4.14
71608 17:56:53.97 -27:38:36.00 18.65 ± 0.10 2.04
71625 17:56:53.91 -27:38:33.33 19.94 ± 0.09 2.50

Last 5 photometry measurements

Observation dateI magseeing
2460235.907 (2023-Oct-18.407) 99.99 ± 99.99 3.95
2460239.931 (2023-Oct-22.431) 99.99 ± 99.99 3.41
2460244.880 (2023-Oct-27.380) 99.99 ± 99.99 4.35
2460245.875 (2023-Oct-28.375) 99.99 ± 99.99 3.20
2460246.874 (2023-Oct-29.374) 22.66 ± 7.76 3.44

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

Single lens fit parameters

tmax =JD 2459405.47 ± 0.08 UT (2021-Jul-9.97)
tE =17.49 ± 2.77 days
u0 =0.2205 ± 0.0403
Ibase =19.49 ± 0.08

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice