finn@main.jetnet.ab.ca wrote: > >>> As i was running my predictions for tonight, i got errors with this elset: > >>> > >>> Molniya 1-74 4.0 0.0 0.0 5.5 d > >>> 1 19730U 88115A 98212.38274339 .99999999 38478-5 12816-2 0 8833 > >> ^^^^^^^^ > > I used Skymap and the Molczan files for 6 August to make my pass > predictions. I got an error message about Molniya 1-74 when i made up the > predictions for the 9th. I stepped the program back one day and no error > occured. When i ran today's (the 10th) predictions, no error. Why, i don't > know. Even though Molniya 1-7 became an air-breather on July 31, it's elsets > were still listed so the program saw it and tried to see if it would make a > visible pass, which it didn't. It may be that there was a 'visible' pass on the 9th where the height was below earth's surface. That might cause the program to crash. No potential visible pass on the other days allowed the program to run then. See if changing the drag to about .8 makes a difference. Jay Respler -- JRespler@surfnj.net Sky Views: http://njsurf.com/skyviews/ Satellite Tracker * Early Typewriter Collector Freehold, New Jersey