Tony, since the satellite cannot tell direction of the Ping, only distance, the arcs have the same distance from the plane making up a half circle. You would need to sats to hear the plane, see where the two arcs cross to determine a location.
This is the same way seismic stations locate earthquakes. Rick - WB3CSY Sent from Rick's iPhone 5 "Great spirits have always encountered violent opposition from mediocre minds" - Albert Einstein > On Mar 16, 2014, at 12:24 PM, "Anthony Japha" <[email protected]> wrote: > > Those so-called arcs that are said to be possible routes for the plane look > much like the outer edge of one of the Inmarsat footprints. Is there logic > behind the arcs or is it oversimplified nonsense? They are said to be the > result of the signals Inmarsat received. But then why wouldn’t it be > possible for the plane to be anywhere in the footprint? > > I’m sure many in our group have good ideas. I’m not trying to start a > discussion of the entire mystery, only this one narrow, but possibly > misleading, aspect related to our hobby. > > 73, > Tony, N2UN > LM 183 > > --- > This email is free from viruses and malware because avast! Antivirus > protection is active. > http://www.avast.com > _______________________________________________ > Sent via [email protected]. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
