Hi, > Yes, and there was an early military positioning system, roughly 1960s / > 1970s that worked on Dopplar also. The name escapes me at the moment.
I think it is Transit. See http://en.wikipedia.org/wiki/Transit_(satellite) Greetings, Pieter. > > -John > > ============= > > > >> This is how ELT locating satellites work (when not relaying the newer >> GPS >> data bursts). Several on another list I watch suggested this pretty >> early >> on and I guess INMARSAT got the message. I'd be curious to know if >> AFRCC >> pointed INMARSAT in that direction. >> >> Really shows the value of precise and stable time references! >> >> >> >> >> Date: Mon, 24 Mar 2014 16:06:14 -0700 (PDT) >> From: "J. Forster"<[email protected]> >> To:[email protected] >> Subject: [time-nuts] Airraft Ping Timing >> Message-ID: >> <[email protected]> >> Content-Type: text/plain;charset=iso-8859-1 >> >> According to a report on FOX, INMARSAT was able to determine the Malasia >> Air followed the southern traectory from the Dopplar of the pings. They >> verified their model by tracking other planes. >> >> -John >> >> ============= >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
