Bob,

ISS being the odd one is the clue. It is the only object whose orbit is often reboosted. Usually the problem comes about if you are using the AMSAT weekly distribution. Note that you can update the NASA.ALL file and it will give today's date, but the data may be as much as a week old. You can dig into the actual file and determine the individual satelllite data date as has been described. The AMATEUR.TXT data are updated daily, sometimes more often. When you look at the SATPC32 Satellite window, check that both machines are looking at the same file, preferably AMATEUR.TXT, and that both have been updated.

Alan WA4SCA

---- Bob- W7LRD w7lrd@comcast.net wrote:

I should have been more specific.  I run SatPc32 in two computers.  The one that runs LVB has ISS about 40 min behind the other computer.  All other satellites are right on.  I have up dated the keps on both computers.  Confused??

73 Bob  W7LRD _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

_______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb