Thanks, maybe I didn't make myself clear:
LEO (low earth orbit) from 400 to 2000km or something like that HEO (high earth orbit) >20000km Going from 310 to 700km in a year is not doing us anything. We need a highly elliptical orbit (Apogee ~60000km, Perigee 900km) similar to AO-40 to allow for cross continental communication. Stefan VE4NSA On Sun, Apr 28, 2013 at 4:57 PM, M5AKA <[email protected]> wrote: > --- On Sun, 28/4/13, Stefan Wagener <[email protected]> wrote: > > I always thought that to get to a suitable HEO you need to start at a > > suitable GTO and not LEO. > > There's no reason why you couldn't go from a 310 km LEO orbit, it just > takes time. > > Romit-1 is a 2U CubeSat developed by Euroluna volunteers. It has an ion > engine and they reckon it'll take a year to go from a 310 km orbit to 700 > km. With Ion motors you can get CubeSats to decent orbits even if the > initial deployment is into one of the cheapest 310 km orbits but you may > have to wait a few years. > > The problem at the moment is the shortage of low-cost LEO launches. > Currently a 2U launch would cost you about $150,000+ Hopefully launch > opportunities will increase and prices fall in the coming years. Certainly > Federal Government funded CubeSat launch programs such as ELaNa, would be > one option in the 2015-2018 time frame for those in the US. > > I think Euroluna have been waiting 2 years now for a launch, there are a > number of other groups also trying to fly CubeSat's with Ion Motors. > > Some info on Romit-1 is at > http://amsat-uk.org/2012/03/01/euroluna-oz9luna-cubesat-launch-update/ > > 73 Trevor M5AKA > > > > _______________________________________________ > 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
