The interactive map below shows our final prediction for the stellar occultation by (11351) Leucus on 2019 December 29 UT. The prediction is based on a Gaia DR2 position for the star and the v20191223203245 orbit estimate for Leucus, which has a 1-sigma cross-track uncertainty of 3 km. This orbit includes all astrometry through December 2019, and is validated against past successful Leucus occultations.
Geocentric mid-time of the event is 03:30:38 UT. Star position is RA 22:53:00.1, Dec +04:20:36 (J2000), and its magnitude is 10.88. Leucus is moving at 24 km/s with respect to the star and its diameter is estimated to be 30 km, so central chords are expected to last 1.2 seconds.