At 10:03 PM 2/25/2013 +0000, Bob- W7LRD w7lrd@comcast.net wrote:

When AO-7 is in B mode it's down link is FO-29' uplink. I was thinking, even though their ground track as seen on Satpc32 do not line up, would not they be able to "see" each other? Which begs the question, how does one determine what that "see" part is? Is there a quick back of the envelope calculation one can do? Keep it simple. Thanks Bob W7LRD Seattle

I'm not sure exactly what you're asking Bob, But when each satellites footprints intersect other, then the satellite's are in view of each other. When the footprints don't intersect the earth is in the way.

KB7ADL