MOA 2017-BLG-428

Event Parameters

Internal ID:gb18-R-8-10524
Discovery date:2017-08-22T07:07:00
RA:18:12:17.26
Dec:-25:51:19.64
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
187757 18:12:17.53 -25:51:18.61 15.96 ± 0.05 4.71
187852 18:12:17.37 -25:51:17.45 19.10 ± 0.19 3.58
187921 18:12:17.22 -25:51:20.15 16.53 ± 0.05 0.14
187949 18:12:17.18 -25:51:21.77 16.50 ± 0.05 1.66

Last 5 photometry measurements

Observation dateI magseeing
2460244.901 (2023-Oct-27.401) 16.59 ± 0.04 3.49
2460245.862 (2023-Oct-28.362) 16.62 ± 0.04 3.53
2460245.898 (2023-Oct-28.398) 16.58 ± 0.04 3.22
2460246.861 (2023-Oct-29.361) 16.57 ± 0.05 3.98
2460246.902 (2023-Oct-29.402) 16.61 ± 0.03 3.35

Calibration: I = 27.40 - 2.5 log10(ΔF + 22325.44)

Single lens fit parameters

tmax =JD 2457992.65 ± 0.01 UT (2017-Aug-27.15)
tE =9.16 ± 0.17 days
u0 =0.3300 ± 0.0108
Ibase =16.22 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice