Gary Chatters wrote:
I have no idea of how the math works for computing heading.
Checkout FORWARD and INVERSE (and their 3d equivalents) at http://www.ngs.noaa.gov/TOOLS/Inv_Fwd/Inv_Fwd.html While these are hosted on a NOAA site, I'm sure I've seen it on a NASA site as well. IIRC, there is also a C port somewhere. Iain _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.