Gordy's link is awesome but I suspect there is a flaw. If the satellites are in Earth's shadow then I doubt they can be seen.
A few hours after deep sunset or a few hours before twilight would be the ideal viewing time methinks.
Patchy cloud around my parts but the link suggested one of the trains would pass at 8:41pm - I saw a few moving things up there but not sure if I saw the train, have to wait for a clearer night.