MOA 2021-BLG-189

Event Parameters

Internal ID:gb19-R-7-7894
Discovery date:2021-06-17T11:19:22
RA:18:18:48.80
Dec:-25:50:56.29
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
170804 18:18:48.97 -25:50:54.17 18.59 ± 0.11 4.18
170832 18:18:48.94 -25:50:58.53 16.48 ± 0.09 3.18
170900 18:18:48.80 -25:50:56.65 14.58 ± 0.05 0.64
170926 18:18:48.77 -25:50:59.59 16.38 ± 0.07 2.83
171049 18:18:48.53 -25:50:58.67 17.41 ± 0.06 3.59

Last 5 photometry measurements

Observation dateI magseeing
2460235.930 (2023-Oct-18.430) 14.58 ± 0.01 2.37
2460239.943 (2023-Oct-22.443) 14.62 ± 0.01 3.32
2460244.878 (2023-Oct-27.378) 14.58 ± 0.01 4.30
2460245.873 (2023-Oct-28.373) 14.54 ± 0.01 3.21
2460246.872 (2023-Oct-29.372) 14.54 ± 0.01 3.51

Calibration: I = 27.40 - 2.5 log10(ΔF + 133905.99)

Single lens fit parameters

tmax =JD 2459397.83 ± 0.10 UT (2021-Jul-2.33)
tE =1.80 ± 0.02 days
u0 =14.1299 ± 0.0462
Ibase =5.97 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice