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
2460571.049 (2024-Sep-17.549) 18.40 ± 0.81 4.75
2460572.905 (2024-Sep-19.405) 18.57 ± 0.34 4.48
2460572.922 (2024-Sep-19.422) 18.09 ± 0.16 3.81
2460572.959 (2024-Sep-19.459) 99.99 ± 99.99 5.48
2460574.036 (2024-Sep-20.536) 21.36 ± 5.09 4.61

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