The interactive map below shows our current prediction for the stellar occultation by (15094) Polymele on 2021 October 1 UT. The prediction is based on a Gaia DR2 position for the star, corrected for parallax and proper motion, and the v20200923194353 orbit estimate for Polymele, which has a 1-sigma cross-track uncertainty of 31.9 km.
Geocentric mid-time of the event is 02:21:27 UT. Star position is RA 04:21:15.8, Dec +23:13:24 (J2000), and its magnitude is 15.57. Polymele is moving at 4 km/s with respect to the star and its diameter is estimated to be 21 km, so central chords are expected to last 5.0 seconds.