The interactive map below shows our current prediction for the occultation by (11351) Leucus on 2025 March 15 UT. The prediction is based on a Gaia eDR3 position for the star, corrected for parallax and proper motion, and the v20230508161632 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 18:15:20.6 UT. The J2000 star position is RA 10:28:29.9 (10.4749824), Dec -05:31:51 (-5.530700), and its magnitude is 10.57. Leucus is moving at 16.5 km/s with respect to the star and its diameter is estimated to be 41.0 km, so central chords are expected to last 2.5 seconds.
Of-date coordinates for the target star on event night are RA 10:29:46.2 (10.4961667), Dec -05:39:36 (-5.660000).