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
2460570.961 (2024-Sep-17.461) 17.48 ± 0.08 3.31
2460571.001 (2024-Sep-17.501) 17.33 ± 0.13 4.10
2460571.034 (2024-Sep-17.534) 17.33 ± 0.16 4.22
2460572.900 (2024-Sep-19.400) 17.65 ± 0.08 3.85
2460572.947 (2024-Sep-19.447) 17.50 ± 0.08 3.85

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