Hi all, For maths at school I am working on a program that plots the flight paths of 4 satellites on a 2D map of the earth. I am currently using a sin wave as the plot but I know this is inaccurate and I want it to look visually accurate. Does anybody know how to do this properly or know anyone in NASA that would be able to help me with this. Any help with equations or similar would be greatly appreaciated. Thank you in advance Ashley ~)~ ================================================================= Ashley Butterworth Email: AshleyB@... or G4MacMan@... ================================================================= _______________________________________________________ Get 100% FREE Internet Access powered by Excite Visit http://freelane.excite.com/freeisp