The interactive map below shows our current prediction for the occultation by (3548) Eurybates on 2023 December 2 UT. The prediction is based on a Gaia eDR3 position for the star, corrected for parallax and proper motion, and the v20230505235930 orbit estimate for Eurybates, which is derived from eurybates_20221019a_n6ogh1.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 19:05:29.4 UT. The J2000 star position is RA 09:47:37.6 (9.7937733), Dec +22:36:35 (22.609681), and its magnitude is 13.41. Eurybates is moving at 5.3 km/s with respect to the star and its diameter is estimated to be 69.3 km, so central chords are expected to last 13.1 seconds.
Of-date coordinates for the target star on event night are RA 09:48:58.4 (9.8162222), Dec +22:29:52 (22.497778).