The interactive map below shows our current prediction for the occultation by (11351) Leucus on 2027 March 15 UT. The prediction is based on a Gaia eDR3 position for the star, corrected for parallax and proper motion, and the v20230508163826 orbit estimate for Leucus, which is derived from leucus_20220214a.bsp. This ephemeris has a 1-sigma crosstrack uncertainty of 10.0 km and a 1-sigma downtrack uncertainty of 0.1 sec for this event (these are placeholder values).
The geocentric mid-time of the event is 18:31:03.0 UT. The J2000 star position is RA 14:44:22.4 (14.7395423), Dec -23:30:15 (-23.504215), and its magnitude is 11.94. Leucus is moving at 6.6 km/s with respect to the star and its diameter is estimated to be 41.0 km, so central chords are expected to last 6.2 seconds.
Of-date coordinates for the target star on event night are RA 14:45:56.5 (14.7656944), Dec -23:37:05 (-23.618056).