Got a little bonus with my ISS flyover long exposure on Friday 12/27: an SL-16 R/B (spent Russian Zenit rocket booster) orbiting from North to South faded in and crossed paths over the station:

This was one of my best ISS long exposures thus far, on a nice, clear night with no wind, with camera jitter minimized by using a simple 10 sec delay after pressing the shutter. Photoset of my ISS long exposure attempts through the years here.