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Re: Mir
John,
WRT the Mir re-entry....I hope that you do not see the re-entry in the
UK. I really hope that very few get to witness this event first hand. The
reason I say that is that if you see the re-entry in the UK, it means that
pieces of Mir will most likely rain over the European continent. This,
indeed, would be a major disaster.
In June of last year, my team at NASA Goddard was responsible for
re-entering the most massive spacecraft ever deployed by the space shuttle,
the Gamma Ray Observatory. We worked very hard to make sure that this
spacecraft re-entered the Earth's atmosphere over the Pacific so that all
its pieces landed in un-inhabitable parts of the Pacific ocean, south of
Hawaii. The only people that witnessed this event were some that saw the
re-entry from the Hawaiian islands using telescopes and some aircraft-based
cameras that validated that the spacecraft did re-enter where predicted. I
will tell you from experience that re-entering a spacecraft is not an easy
job. A few seconds delay or minor changes in spacecraft thrusting can send
the spacecraft on a significantly divergent course than was
planned. Remember that a spacecraft is moving at 7.5 km/sec so small
errors make big changes in the groundtrack.
As a individual that was responsible for flight qualifying the RF filter
used in the Mir ham radio system, I will feel the loss with many others in
the ham community when Mir re-enters. However, for everyones sake, let's
all hope that Mir will land in uninhabitable waters.
Great question John!
73, Frank Bauer, KA3HDO
At 06:15 PM 3/13/01 +0000, John wrote:
>Hi all first time I've post an email here, but after watching the news
>today and seeing the picture of MIR above Japan just wondered if anyone
>knows if we are likly to see any thing in the UK. Cheers John....
>--
>*******************************************
>* John McCarthy *
>* G7JTT/2E0AEZ/M5AEZ *
>* Email john@jmkl.freeserve.co.uk *
>* Website http://www.jmkl.freeserve.co.uk *
>*******************************************
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