MOA 2019-BLG-221

Event Parameters

Internal ID:gb16-R-3-18721
Discovery date:2019-05-22T19:13:52
RA:18:11:13.30
Dec:-29:19:31.66
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
72480 18:11:13.03 -29:19:31.94 18.48 ± 0.09 4.35
72572 18:11:13.21 -29:19:30.36 17.44 ± 0.14 1.94
72626 18:11:13.31 -29:19:35.05 19.09 ± 0.33 4.13
72652 18:11:13.41 -29:19:30.47 17.85 ± 0.18 1.03
72746 18:11:13.53 -29:19:31.57 17.25 ± 0.18 2.54
72772 18:11:13.55 -29:19:29.35 17.84 ± 0.11 3.33
72843 18:11:13.71 -29:19:31.37 15.00 ± 0.13 4.96

Last 5 photometry measurements

Observation dateI magseeing
2460245.910 (2023-Oct-28.410) 18.09 ± 0.23 2.87
2460245.939 (2023-Oct-28.439) 17.69 ± 0.21 3.47
2460246.866 (2023-Oct-29.366) 18.00 ± 0.18 3.33
2460246.913 (2023-Oct-29.413) 17.98 ± 0.21 3.01
2460246.937 (2023-Oct-29.437) 17.93 ± 0.29 3.80

Calibration: I = 27.40 - 2.5 log10(ΔF + 6625.22)

Single lens fit parameters

tmax =JD 2458627.62 ± 0.16 UT (2019-May-24.12)
tE =35.70 ± 3.49 days
u0 =0.3951 ± 0.0765
Ibase =18.45 ± 0.19

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice