[amsat-bb] Hand deployed satellites
k7trkradio at charter.net
Wed Aug 16 23:36:44 UTC 2017
FYI, interesting article in the current Air&Space magazine about the extent
of debris and trash in orbit. It is a real trash heap out there.
From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Patrick
Sent: Wednesday, August 16, 2017 12:54 PM
To: Amsat BB
Subject: Re: [amsat-bb] Hand deployed satellites
It's my belief that ISS sits in a decaying orbit on purpose so other debris
is limited. They constantly have to keep pushing up their orbit to stay in
space and not fall back to earth.
73 de KA9SCF
On Wed, Aug 16, 2017 at 2:12 PM, Greg D <ko6th.greg at gmail.com> wrote:
> I jokingly describe the launch of a satellite from the ISS as the crew
> opening a window and tossing the satellite out. But, in fact, there
> is a very carefully planned direction to which the crew "toss" the
> satellites. I believe it's to the rear and below of the ISS, such
> that when the orbits cross in the future there is no danger that the
> two will collide.
> If, for example, they were to push the satellites to the side of the
> ISS, then an orbit later the two would meet again as the satellite's
> orbit would be oscillating to one side and then the other of the ISS.
> Going to the rear, making the satellite's orbital velocity slightly
> slower than the ISS, would put the satellite in a lower orbit. But
> that lower orbit makes the satellite complete its trip around the
> Earth faster than the ISS, so should put it ahead of the ISS when they
> meet again. If launched behind and below, then by the time it gets
> around to the ISS again, it should be far enough away that there would
> be no possible danger of a collision.
> Or, something like that. I forget the details, but it's been
> discussed here a while ago.
> Greg KO6TH
> Peter Pauly wrote:
> > Anyone know the details? I assume they would want to release them
> > earth" and not in the other direction so that they would have a
> > lower
> > than the station and not run into them at some point. Do they just
> > toss them out?
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