[aprssig] Satellite positions: FREQUENCY
bruninga at usna.edu
Wed Oct 19 16:54:10 CDT 2011
> ...and possibly a heading (4 or 8 compass points in
> characters) within a pass.
Not realistic for 2 reasons.
1) Message latency cannot provide any meaningful useful information that changes as much as tens of degrees per minute. By the time you get a message saying it is NE, it might already be SE.
2) We do not want Messages and all their ACKS and overhead cluttering our networks with such a message burden of tracking a satelite across the sky.
ANyone who even casually does satellites understands the geometry of a pass. All he needs to know is the starting azimuth, and the MaxEL angle and direciton of movement to have an idea of its workability with his omni antenna.
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