The interactive map below shows our current prediction for the stellar occulation by (11351) Leucus on 2019 December 29 UT. The prediction is based on a Gaia DR2 position for the star and the v20181128182635 orbit estimate for Leucus. This orbit includes all astrometry up through October 2017.
Geocentric mid-time of the event is 03:30:34 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 45 km, so central chords are expected to last 1.9 seconds.