MOA 2017-BLG-431

Event Parameters

Internal ID:gb5-R-10-111977
Discovery date:2017-08-22T07:08:38
RA:17:54:58.92
Dec:-28:26:21.61
Current assessment:microlensing/cv
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
39833 17:54:59.09 -28:26:25.92 16.90 ± 0.02 4.85
39879 17:54:58.89 -28:26:19.73 16.49 ± 0.02 2.61
39936 17:54:58.71 -28:26:25.24 15.49 ± 0.03 4.01

Last 5 photometry measurements

Observation dateI magseeing
2460246.848 (2023-Oct-29.348) 99.99 ± 99.99 4.12
2460246.883 (2023-Oct-29.383) 99.99 ± 99.99 3.96
2460246.895 (2023-Oct-29.395) 99.99 ± 99.99 3.89
2460246.905 (2023-Oct-29.405) 99.99 ± 99.99 3.82
2460246.917 (2023-Oct-29.417) 99.99 ± 99.99 3.80

Calibration: I = 27.40 - 2.5 log10(ΔF + 0.00)

Single lens fit parameters

tmax =JD 2457987.24 ± 0.00 UT (2017-Aug-21.74)
tE =625.89 ± 212.10 days
u0 =0.0005 ± 0.0003
Ibase =24.19 ± 0.20

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice