2010 WC9 is not far from its closest approach. It looks like this evening will be the best time to catch it for us in the UK. It’ll be close to the border of Hercules and Ophiuchus at 2200 UT. I’ll be inputting J(now) eph into my GOTO and keeping my fingers crossed! The MPC states that its sky motion will be about 30arcsec/min, so 5s exposures should be OK.