Ok, Say can anyone find me this info? The shuttle average orbital speed is 17580 MPh.
So launch starts at zero, and ends up at 17580 then coming back down goes from 17580 to zero. Ok, Now what I want is,, At Time = zero it's zero MPH, at t+1 min it's now at what altitude, and what speed? at T+2 min alt and speed? at T+3 in alt and speed continue all the way to orbit. Now do it the other way, at time od de orbit burn it's at what altitude and 17580 MPh, at t+ 1 min after burn it;'s at alt and speed, etc, all the way til it has landed, does anyone have this information? Joe Bob Bruninga wrote: >One university at this year's Utah Cubesat Workshop, is designing a re-entry >cubesat. > >Talk about the ultimate ham radio fox hunt! Find this pebble somewhere over a >few million square miles... > >The problem is having a transmitter to survive the re-entry... One figure is >that about 300 Killowatt Hours of energy has to be disipated in a few minutes. > >Why is it that all re-entries always end in the ball of fire over just a few >minutes. Why cannot the re-enetry energy be disipated over a longer period to >make it more survivable. Of course, if they could, they would. It appears to >be the nature of the beast. You are entering an ever denser medium, so the >drag has to escallate and you end up with the 6/7 minute burn. > >What if the surface of the re-entry vehicle radically changed during the >re-entry phase? As the density of the atomosphere increased, the surface area >decreases. An ablative system that instead of burning off a thin skin of >material as in most re-entry systems, you planned on burning off 95% of the >original drag volume? What re-entry profile could be achieved Could we make >a golfball core "pinger" that could survive? > >With the cheap $8k launches and only 3 month mission life, this idea of >concentrating on making an interesting mission at the re-entry phase is a new >opportunity.. > >The ultimate fox hunt? > >Bob, WB4APR >_______________________________________________ >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 > > >------------------------------------------------------------------------ > > >No virus found in this incoming message. >Checked by AVG - www.avg.com >Version: 8.5.406 / Virus Database: 270.13.48/2292 - Release Date: 08/09/09 >08:08:00 > > > _______________________________________________ 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
