MOA 2017-BLG-231

Event Parameters

Internal ID:gb17-R-3-20341
Discovery date:2017-05-05T18:37:34
RA:18:11:41.78
Dec:-27:31:59.68
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
90810 18:11:41.52 -27:32:00.78 18.71 ± 0.16 4.59
90934 18:11:41.74 -27:32:03.44 17.03 ± 0.12 4.66
91015 18:11:41.87 -27:31:57.03 17.34 ± 0.15 2.21
91063 18:11:41.95 -27:32:01.26 16.56 ± 0.05 2.79

Last 5 photometry measurements

Observation dateI magseeing
2460245.899 (2023-Oct-28.399) 99.99 ± 99.99 2.89
2460245.931 (2023-Oct-28.431) 19.51 ± 0.96 3.28
2460246.862 (2023-Oct-29.362) 20.80 ± 2.19 3.56
2460246.903 (2023-Oct-29.403) 22.62 ± 14.98 3.39
2460246.931 (2023-Oct-29.431) 99.99 ± 99.99 3.76

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

Single lens fit parameters

tmax =JD 2457880.38 ± 0.10 UT (2017-May-6.88)
tE =8.95 ± 1.98 days
u0 =0.3477 ± 0.1670
Ibase =19.80 ± 0.26

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice