[amsat-bb] Bob Farquhar SK

[SP3QFE]

Thank you for info. It happen on 18 Sep or 18 Oct.?

73, Armand SP3QFE.
Wysłano z mobilnego terminala pocztowego. 
Sent from the mobile e-mail terminal.

20 paź 2015 05:57 "James R. La Frieda" <lafrieda at earthlink.net> napisał(a):
>
> https://en.wikipedia.org/wiki/Robert_W._Farquhar
>
> https://en.wikipedia.org/wiki/Halo_orbit
>
> On 10/19/2015 1:58 PM, Peter Guelzow wrote:
> > Robert W. Farquhar, PhD (1932-2015)
> >
> > It is with great sadness to inform you that Robert W. Farquhar, former
> > flight director of the ISEE-3 mission passed away on Sept 18th, 2015.
> >
> > Bob’s dissertation was key to halo orbits around libration points, which
> > are now used by many science missions. After redirecting the ISEE-3
> > mission to comet Giacobini-Ziner in 1985 he developed the trajectory
> > with eventually returned ISEE-3 to earth’s vicinity in 2014, where with
> > his assistance an international team successfully regained control of
> > the aging spacecraft.
> >
> > Our heart goes out to his family and friends and all those who were
> > close to him.
> >
> > Peter Guelzow, DB2OS
> > AMSAT-DL
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> _______________________________________________
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