After being fortunate enough to see two incredible fireballs in the past (1st) 6 months, I noticed around a similar time to you a very slow moving object that I thought was about to enter the atmosphere and explode.
After a few hours research it seemed most likely to be Seasat1 (if i remember correctly).
Check out -
http://spaceflight.nasa.gov/realdata.../JavaSSOP.html - somewhere in there you can set your location and it will tell you what time, from where and how long the satellite will be visable. Some for around 4-5 minutes!