[amsat-bb] Victor Kudielka and AO-13

[Martin Davidoff]

     The recent mention of the work by Kozai and Lidov and it's relation to
AO-13 stimulated a number of long dormant memories.  I've always been in
awe of Dr. Victor Kudielka, OE1VKW who, using 80286 (?) technology, was
able to apply their work to predict the demise of AO-13.

      Prior to launch I don't think any of us had considered the
possibility that asymmetries in the shape of the earth could cause
fluctuations in the eccentricity of AO-13's final orbit that would, without
affecting the spacecraft's total energy, lower the perigee to the point
where re-entry would occur.

      Which leads me to wonder about Victor's status these days.  I can't
find any reference to him post 2013.  Any info would be appreciated.

73, Martin, k2ubc


On Wed, Feb 28, 2018 at 8:00 AM, Robert McGwier <rwmcgwier at gmail.com> wrote:

> Yes, AO 13.
>
> On Tue, Feb 27, 2018 at 1:09 PM Gregory Beat <w9gb at icloud.com> wrote:
>
> > Jeopardy question?
> >
> > Oscar 13, AO-13
> >
> > greg, w9gb
> >
> > ===
> > Subject: [amsat-bb] Yoshihide Kozai
> >
> > The long scientific life of Kozai ended recently with his death at ~90
> > years old
> >
> > Kozai and Lidov proposed a mechanism for why the Luna 3 probe decayed
> into
> > the Earth's atmosphere when everyone believed it would last "forever".
> >
> > This same mechanism describes the death of which amateur spacecraft?
> >
> > Bob
> > N4HY
> >
> > Sent from iPad Air
> >
> --
> Bob McGwier
> Founder, Federated Wireless, Inc
> Founder and Technical Advisor, HawkEye 360, Inc
> Research Professor Virginia Tech
> Chief Scientist:  The Ted and Karyn Hume Center for National Security and
> Technology
> Senior Member IEEE, Facebook: N4HYBob, ARS: N4HY
> Faculty Advisor Virginia Tech Amateur Radio Assn, Trustee K4KDJ
> Member of PVRC (Roanoke-Blacksburg), TAPR,  life member of ARRL and AMSAT,
> NRVR.ORG (Rocketry)
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