A software glitch interrupted the planned docking early this morning (Sunday), and Cygnus has been hanging out a safe distance away from the station. Orbital Sciences has already identified the problem, and expects to have a fix uplinked in time to make another attempt on Tuesday. On the upside, this gives viewers on the ground a few more chances to see Cygnus and ISS flying in formation. 😉
For pass predictions, check out Heavens Above.