[net.space] beanstalks and space debris

JoSH@RUTGERS.ARPA (11/11/83)

From:  JoSH <JoSH@RUTGERS.ARPA>

Objects that were in orbits that were exact integral fractions
(or multiples) of geosynch, and were not equatorial, would continue
to miss the beanstalk if they missed it the first time.

Perhaps this, on a smaller scale, explains quantum mechanics :-) ?

--JoSH
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REM%MIT-MC@sri-unix.UUCP (11/15/83)

From:  Robert Elton Maas <REM @ MIT-MC>

Aha, you're right, thanks for correcting me, and let me correct you
slightly. If the period of the stalk and the random other satellite
are commensurable, and if they don't collide within LCM(p1,p2) where p1
and p2 are the two periods, and if they remain locked in that same
period and also remain locked in the same inclination, then they'll
never collide. If the stalk is massive enough, perhaps it'll
gravitationally-purturb all the other sattelites enough to lock them
into such commensurable orbits, so all we have to do is calculate the
present orbits of all satellites and debris currently existing and
then plan the stalk to be in the right spot to miss everything long
enough for everything to be purturbed into such locked commensurable
orbits. Is any existing computer capable of that calculation?

Imagine after we go extinct our stalk remains, and some alien
civilization observing our planet from far enough away they can't see
the stalk itself notices the strange resonance orbits of all the
debris and wonders what unseen moonlet could possibly be purturbing
everything into that strange pattern.

(In case you missed my slight correction, I changed "multiple" to
"commensurable" and changed "one period of lesser satellite" to "LCM
of periods of stalk and lesser satellite", a generalization of your
obsrvation.)