Travelling from south to north off the east coast, it was definitely in space, what appeared at first to just be a satalite, until it made a movement like a hump and back to the same line of travel when first seen, it continued for a bit longer then made a steep back vertical and dissappeared, I reported it to our air traffic contol center this morning to see if anyone else had seen it, there answer was no but they will ask the guy who was on, all movement were smooth and at a very high rate of speed, I can see about 20 odd kilometers of sky line and this distance was covered in about 15 seconds