The interactive map below shows our current prediction for the stellar occultation by (3548) Eurybates on 2021 October 20 UT. The prediction is based on a Gaia DR2 position for the star, corrected for parallax and proper motion, and the v20200901191154 orbit estimate for Eurybates, which has a 1-sigma cross-track uncertainty of 17.7 km.
Geocentric mid-time of the event is 12:03:27 UT. Star position is RA 03:56:45.3, Dec +22:24:10 (J2000), and its magnitude is 13.49. Eurybates is moving at 11 km/s with respect to the star and its diameter is estimated to be 66 km, so central chords are expected to last 6.0 seconds.