Eurybates Occultation 2022-10-23 (G* = 6.9)

The interactive map below shows our current prediction for the stellar occultation by (3548) Eurybates on 2022 October 23 UT. The prediction is based on a Gaia eDR3 position for the star, corrected for parallax and proper motion, and the v20221020151850 orbit estimate for Eurybates, which is derived from eurybates_20221019a_n6ogh1.bsp. This ephemeris has a 1-sigma crosstrack uncertainty of 29.2 km and a 1-sigma downtrack uncertainty of 6.2 sec for this event.

Geocentric mid-time of the event is 02:07:41 UT. The map below shows star symbols on the predicted centerline that are labelled with the event time at that location.

The J2000 star position is RA 06:59:12.9 (6.986926), Dec +29:16:24 (29.27327), and its magnitude is 8.69. Eurybates is moving at 6.5 km/s with respect to the star and its diameter is estimated to be 66 km, so central chords are expected to last 10 seconds.

Of-date coordinates for the target star on event night are RA 07:00:39.6 (7.011000), Dec +29:14:26 (29.24056).

Updated: Oct 20, 2022