Thanks Erich.
On Mon, Jun 2, 2014 at 3:46 AM, Erich Eichmann <erich.eichm...@t-online.de> wrote: > Hello Tom, > the program WinAOS gives you a quick overview of the satellite passes in > the near future. > The program is not designed for long term calculations. It doesn't use the > SGP4/SDP4 model as SatPC32 and WinListen do but uses rather simple > calculation routines. Therefore use WinListen or the "Preview" function of > SatPC32 for more precise calculations. > 73s, Erich, DK1TB > > > Am 02.06.2014 00:10, schrieb Thomas Doyle: > >> Some of you may remember the Chicken Little Contest run by Alan a while >> back. >> I have taken another look at decay using the XATCOBEO satellite as an >> example. >> >> My first try at a program calculated the decay in early June 2014. >> I am all but positive this is several weeks too soon. >> >> On the other end of the spectrum SatPC32/WinAOS shows it up and running >> well into 2084. >> I am as positive as I can be that this is many decades too late. >> >> Orbitron shows it still running on Sept 8 2014 but at an altitude of only >> 109km. >> I believe this is a bit late as 160km is usually considered to be the >> point >> of no return. >> >> Calsky predicts decay on 14 August 2014 with a +/- of 15 days >> Smart guy to hedge his bets with the +/- range. >> >> DK3WN predicts decay on 31 July 2014 >> This falls into the +/- range of Calsky and since our own N8MH is an >> editor >> on this site it is probably the closest. >> >> With LEO satellites rapidly becoming as common as iPads they provide >> interesting subjects for decay predictions >> and possible Chicken Little contests. >> >> Is there any formal definition/announcement of the actual decay or >> are satellites like old soldiers and just fade away ? >> >> 73 W9KE Tom Doyle >> _______________________________________________ >> Sent via AMSAT-BB@amsat.org. 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 from my computer. tom ... _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
