MOA 2017-BLG-227

Event Parameters

Internal ID:gb14-R-7-95648
Discovery date:2017-05-05T16:55:19
RA:18:06:44.00
Dec:-27:57:39.76
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
188661 18:06:44.27 -27:57:38.98 15.24 ± 0.06 4.62
188839 18:06:44.09 -27:57:39.58 18.25 ± 0.16 2.07
188882 18:06:43.92 -27:57:36.33 18.16 ± 0.17 4.20
188883 18:06:43.90 -27:57:41.99 18.95 ± 0.19 1.82
189005 18:06:43.71 -27:57:36.95 18.58 ± 0.23 4.88
189006 18:06:43.73 -27:57:39.31 19.32 ± 0.23 3.28
189034 18:06:43.69 -27:57:43.33 17.54 ± 0.12 4.75

Last 5 photometry measurements

Observation dateI magseeing
2460246.855 (2023-Oct-29.355) 20.22 ± 1.72 3.50
2460246.889 (2023-Oct-29.389) 20.12 ± 1.94 3.63
2460246.901 (2023-Oct-29.401) 20.91 ± 2.98 2.96
2460246.911 (2023-Oct-29.411) 22.32 ± 14.35 3.50
2460246.923 (2023-Oct-29.423) 99.99 ± 99.99 4.03

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

Single lens fit parameters

tmax =JD 2457878.77 ± 0.10 UT (2017-May-5.27)
tE =16.70 ± 2.09 days
u0 =0.2573 ± 0.0549
Ibase =20.11 ± 0.24

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice