On Fri, 18 Apr 1997, Bram Dorreman wrote: > many people use Azimuth = 0 being North. I changed several > times in using Azimuth = 0 being either North or South I've never seen anything other than 0 = North. So that gets my vote. Jay Respler -- Details of how to get on the Satellite Observer Mail List, satellite elements, prediction programs and other satellite information, at the Visual Satellite Observers Home Page: http://www.physics.ox.ac.uk/sat/satintro.html -- JRespler@InJersey.com Satellite Tracker * Early Typewriter Collector Freehold, New Jersey