Near Earth Object 285263 1998 QE2 will be of interest for the NEO hunters amongst us. This is a bright, relatively slow mover, visible from all iTelescopes and you don't have to do much fancy foot work to catch it as it passes through Libra.
285263 1998 QE2 is a whopping 2.1 Km diameter rock that will be 15.2 Earth-Moon distances from us at closest approach.
It is closest on May 31 at 20:59 UT. Unfortunately, from Mayhill NM and it is below the horizon then, but it is still bright and easy to catch from astronomical twilight on. It will be visible at closest approach from Nerpio Spain (22:59 local time) and the SSO (at 4:59 June 1 local time for the SSO).
Close up view of NEO 285263 1998 QE2 as seen from Mayhill New Mexico on May 31 at 9:45 pm local time. The small rectangle is the field of view of T5, the large rectangle is the FOV of T14, ticks are 15 minute intervals. Click to embiggen.
Also, it is moving slow enough that the tracking systems will keep up with it (it will take an hour to cross the FOV of T5), and bright enough to do relatively short exposures (say 30 second exposures).
It also passes a number of smallish dim galaxies (eg NGC 5810 m 13 and NGC 5892 m12), which may be of interest to capture along with it.
Despite being closest on the 31st of May, the asteroid continues to get brighter (okay, magnitude 10.7 from magnitude 10.8) on June 1 and 2, so you can follow this asteroid for quite some time. The SSO scopes have a more limited follow up time, as the asteroid heads towards the horizon from their point of view.
While standard planetarium plotting will work well, you may still like to work from topocentric coordinates. For topocentric ephemerides go to
Nth America MPC Code - H06, Spain MPC Code - I89, SSO - Q62
Always use the latest possible orbital elements and ephemeris, as the orbit is still being refined. The planning guides to viewing YU55 here and here will help organising topocentric ephemerides for these events.