MOA 2017-BLG-228

Event Parameters

Internal ID:gb18-R-3-16429
Discovery date:2017-05-05T16:55:35
RA:18:11:14.82
Dec:-25:47:21.04
Current assessment:microlensing/cv
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
70693 18:11:14.59 -25:47:19.56 18.75 ± 0.13 3.90
70784 18:11:14.81 -25:47:24.78 19.15 ± 0.20 4.54
70785 18:11:14.81 -25:47:20.02 17.58 ± 0.16 0.79
70818 18:11:14.84 -25:47:22.69 18.92 ± 0.27 2.33
70840 18:11:14.87 -25:47:15.79 18.33 ± 0.13 4.82
70882 18:11:14.97 -25:47:23.46 18.58 ± 0.21 3.46
70883 18:11:14.97 -25:47:17.57 19.43 ± 0.28 3.37

Last 5 photometry measurements

Observation dateI magseeing
2460244.901 (2023-Oct-27.401) 17.57 ± 0.09 3.41
2460245.862 (2023-Oct-28.362) 17.57 ± 0.10 3.54
2460245.898 (2023-Oct-28.398) 17.71 ± 0.11 3.12
2460246.861 (2023-Oct-29.361) 17.43 ± 0.11 3.84
2460246.902 (2023-Oct-29.402) 17.77 ± 0.14 3.28

Calibration: I = 27.40 - 2.5 log10(ΔF + 8456.68)

Single lens fit parameters

tmax =JD 2457878.96 ± 0.03 UT (2017-May-5.46)
tE =0.60 ± 1.74 days
u0 =7.3999 ± 5.8675
Ibase =10.62 ± 0.21

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice