I have recently purchase a night vision digital video camera and put it on a tripod and left it outside point at one spot in the sky ,. the results have been amazing with a more or less constant traffic of different types and about forty or more in that period of time. i am aware of satelites and their normal rate of speed and of direction. if i use an infared hand controller you can get them to return what it is you do. having done this for a few nights i have a very good collection that i intend to put to dvd and wondered if they would be of any interest to you. i am now trying to use a aet up with camera on my telescope so as to get a better picture. however i have been amazed at the huge number and some off the unusual things that happen like two travelling only seconds behind the other. if they are of any interest i will send you a copy of the dvd as soon as i have finished puttung it all together yours sinserely john laccohee-joslin.