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RE: (meteorobs) Fireballs & sonic booms
Jure: One of the brightest fireballs I have ever witnessed, seen on
November 4, 1971, bright as the full moon, resulted in my reporting it to
the late Dr. Oliver of the AMS. He received two other reports on that
fireball and was able to compute an orbit and the object's trajectory in
the atmosphere. He calculated that the object faded from view at an
altitude of 55 km. No sounds were heard other than the "gasps" of the
group with which I was observing at the time.
We were observing within 100m of a 200m high radio transmission tower.
That should qualify as a "large metal object." Perhaps the object did
not penetrate the atmosphere deeply enough for it to emit electrophonic
sounds.
George Kelley
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