On Tue, Mar 13, 2018 at 10:47 AM, Christopher Robin <phe...@gmail.com> wrote: > On Tue, Mar 13, 2018 at 1:03 PM Jim Gettys <j...@freedesktop.org> wrote: >> >> On Tue, Mar 13, 2018 at 12:52 PM, Dave Taht <dave.t...@gmail.com> wrote: >>> >>> 2) Although the FCC denied the application based on having inadaquate >>> radar reflectivity, according to their standards, the article states: >>> >>> "Websites dedicated to tracking operational satellites show the >>> SpaceBees in orbits virtually identical to those specified in Swarm’s >>> application." Ground stations can only get better. > > > Note that the objections are based on a non-operating SpaceBee. I’m not > seeing anything about one of the SpaceBees going dark for testing or not > responding due to malfunction. So the ground stations are prob getting both > GPS data from the sat and a fix on the radio signal to determine position. > If both of those methods of tracking disappear, there appears to be a > limited number of ground stations that could provide an accurate enough > location to allow for other orbitals to made an avoidance maneuver. > > With all the noise around this launch, I haven’t been able to find info on > expected operational lifespan vs expected orbit decay. LEO’s can still last > for decades. The only thing I’m finding is an expected use for 6mo to 2yr, > but not sure how long after that the Spaceebee will stay in orbit and/or be > responsive with positional data.
The arkyd-3 was supposed to be in a 25 yr orbit with a 5 year operational lifetime... which may outlast the company at this point. So I'd assume this orbit (and corporate and projected lifetime) is similar. > While just 4 of these things in space isn’t a major concern, rogue launching > objects into space isn’t a scalable solution. This is especially true as the > cost of launching comes down into the “cheap” startup range. These types of > companies aren’t usually concerned 25yr impact plans, and most wont last > long enough to be around to assist if any problems occur past that 2-3yr > window. > > We have rules for the road, the sea, and the sky. Space needs similar > protections. No, the FCC shouldn’t be that gatekeeper, but that’s where we > are at until an agency is stood up with authority to handle these kinds of > issues. +1. -- Dave Täht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619 _______________________________________________ Cerowrt-devel mailing list Cerowrt-devel@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cerowrt-devel
