The interactive map below shows our current prediction for the stellar occultation by (52246) Donaldjohanson on 2020 October 9 UT. The prediction is based on a Gaia DR2 position for the star and the v20181130000124 orbit estimate for Donaldjohanson.
Geocentric mid-time of the event is 10:37:09 UT. Star position is RA 04:52:27.4, Dec +26:00:31 (J2000), and its magnitude is 14.12. Donaldjohanson is moving at 5 km/s with respect to the star and its diameter is estimated to be 5 km, so central chords are expected to last 1.0 seconds.