At 14:21 15/03/2009, you wrote:

Satellite does not lie (Human does)

Something came up to my mind. i received a QSL card for a satellite QSO one year prior to the date i get the card. And for an unexplainable reason this QSO was not in my log. We have another tool available to check if with the time reported on the card this satellite was at least in view at that time. Just set back your pc clock around the past date and play with you program to see if it's matching a co- visibility foot print.

It was not but when i try local to UTC time switch it does. This fellow discharge himself from his burden of proof and he got my card but not before he sends me a corrected one.

That only works if you also back-date the KEPS to the correct set for the date in question, or else the satellite won't be where the tracking software says it is! The sat will be in a considerably different position with keps for a year ( or any other period ) in front.