MOA 2019-BLG-228

Event Parameters

Internal ID:gb9-R-3-121253
Discovery date:2019-05-23T14:09:43
RA:17:57:05.83
Dec:-29:19:52.53
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
4070 17:57:05.58 -29:19:53.08 15.53 ± 0.05 4.22
4117 17:57:05.68 -29:19:48.42 17.06 ± 0.08 4.54
4202 17:57:05.84 -29:19:55.83 17.95 ± 0.13 4.06
4252 17:57:05.98 -29:19:51.76 17.55 ± 0.08 1.38
4272 17:57:06.05 -29:19:49.62 17.17 ± 0.06 3.42

Last 5 photometry measurements

Observation dateI magseeing
2460246.884 (2023-Oct-29.384) 17.83 ± 0.14 3.38
2460246.896 (2023-Oct-29.396) 17.83 ± 0.15 3.16
2460246.906 (2023-Oct-29.406) 17.45 ± 0.11 3.16
2460246.918 (2023-Oct-29.418) 17.57 ± 0.14 3.39
2460246.927 (2023-Oct-29.427) 17.63 ± 0.16 3.42

Calibration: I = 27.40 - 2.5 log10(ΔF + 8701.62)

Single lens fit parameters

tmax =JD 2458636.05 ± 0.01 UT (2019-Jun-1.55)
tE =26.92 ± 0.36 days
u0 =0.1031 ± 0.0019
Ibase =18.19 ± 0.27

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice