At 05:07 PM 2/25/2010 +0000, Bob- W7LRD w7lrd@comcast.net wrote:
Hello Is there a "easy" way of figuring out where/when a given apogee will at a given lat.long? I want to try to predetermine when the apogee will be on AO-7 to favor the northern hemisphere. To "maybe" help in dx contacts. The difference is only bout 17km in altitude, it just might streeeetch the footprint enough. Also just how much does the 17km add to the footprint? 73 Bob W7LRD
OK, Now to answer your question Bob.
If you want that extra 15km of altitude you get with AO-7 at apogee, the next time AO-7 will be having apogees at the most northern latitudes it reaches will be on orbits around June 17th to the 18th. Apogee will occur around 78 degrees N Lat.
KB7ADL