>Trig problem involving determining the location of a satellite in 3D
Dude, ephemeris calculations are a bitch, good on you for doing it on a TI-89. Hate to break it to you but you might already be a programmer!
Am honored to have inspired you to get on with it this quickly. Now turn in your e and d from c solution skeptical teacher glare
In all seriousness I would love to help out fellow ProgramAnonNoobs and will be watching this thread