The interactive map below shows our current prediction for the stellar occultation by (15094) Polymele on 2021 October 23 UT. The prediction is based on a Gaia DR2 position for the star, corrected for parallax and proper motion, and the v20200923200101 orbit estimate for Polymele, which has a 1-sigma cross-track uncertainty of 23.2 km.
Geocentric mid-time of the event is 10:14:19 UT. Star position is RA 04:15:38.8, Dec +23:44:24 (J2000), and its magnitude is 16.66. Polymele is moving at 11 km/s with respect to the star and its diameter is estimated to be 21 km, so central chords are expected to last 1.9 seconds.