The interactive map below shows our current prediction for the stellar occulation by (3548) Eurybates on 2021 October 20 UT. The prediction is based on a Gaia DR2 position for the star and the v20181130000400 orbit estimate for Eurybates.
Geocentric mid-time of the event is 12:03:45 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 72 km, so central chords are expected to last 6.5 seconds.