MOA 2019-BLG-440

Event Parameters

Internal ID:gb14-R-7-111683
Discovery date:2019-10-06T15:54:17
RA:18:08:33.59
Dec:-27:42:11.14
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
16851 18:08:33.82 -27:42:09.09 19.18 ± 0.17 4.65
16933 18:08:33.84 -27:42:13.48 18.06 ± 0.12 4.52
17006 18:08:33.68 -27:42:09.02 18.54 ± 0.12 3.37
17080 18:08:33.57 -27:42:15.52 18.66 ± 0.15 3.97
17138 18:08:33.48 -27:42:11.19 16.46 ± 0.04 1.03
17232 18:08:33.32 -27:42:15.28 15.40 ± 0.08 4.85

Last 5 photometry measurements

Observation dateI magseeing
2460572.894 (2024-Sep-19.394) 16.52 ± 0.03 3.91
2460572.934 (2024-Sep-19.434) 16.49 ± 0.04 4.22
2460572.946 (2024-Sep-19.446) 16.47 ± 0.03 4.11
2460572.957 (2024-Sep-19.457) 16.41 ± 0.06 4.93
2460575.921 (2024-Sep-22.421) 16.61 ± 0.21 4.90

Calibration: I = 27.40 - 2.5 log10(ΔF + 23746.52)

Single lens fit parameters

tmax =JD 2458764.00 ± 0.08 UT (2019-Oct-7.50)
tE =16.18 ± 1.37 days
u0 =0.0001 ± 0.0154
Ibase =20.00 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice