[meteorite-list] How far away can a meteor be heard?

From: al mitt <almitt_at_meteoritecentral.com>
Date: Sun, 12 Jul 2009 11:01:55 -0400
Message-ID: <CE966B5EADF247268AD72C5F502B9253_at_StarmanPC>

Greetings Bernd and all,

There is also a phenomenon where a meteor can be heard near the radio
frequencies. (I've actually hear this before myself) Of course this has
nothing to do with the actual sonic booms that are made when they come down.
There might be a possibility that someone along the fall track could have
heard the radio frequency and reported it which would throw off
triangulation of finding material. Anyway just a note.

--AL Mitterling


----- Original Message -----
From: <bernd.pauli at paulinet.de>
To: <Meteorite-list at meteoritecentral.com>
Sent: Thursday, July 09, 2009 11:56 AM
Subject: [meteorite-list] How far away can a meteor be heard?


Hello List,

Here's what Buchwald wrote about the Treysa meteorite fall in 1916:

BUCHWALD V.F. (1975) Handbook of Iron Meteorites, Vol. 3, pp. 1232-1235):

A mass of 63.28 kg fell April 3, 1916 at 15:25 hrs (14:25 hrs Greenwhich
time).
Numerous eyewitnesses saw a fireball that moved, in four seconds, with an
average
(geocentric) velocity of 16.3 km/s in a trajectory inclined 55? to the
horizontal from
N 15? W to S 15? E. The intensity of the light from the fireball gradually
decreased
until it disappeared at the unusually low altitude of 16.4 km. The
heliocentric velocity
was calculated to be 37.5 km/s corresponding to an elliptic orbit within the
solar system.
Due to fine weather the meteorite was observed from an area 135 km in
radius. The whole
train, 81 km long, was visible as a whitish band that slowly became blurred
until it vanished
after 10 minutes. Eyewitnesses within a radius of 50 km heard a detonation a
few minutes
after the fireball had disappeared, and some witnesses near the end point of
the trajectory
allegedly observed a black body falling.

Good luck to all those
trying to hunt it down,

Bernd

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Received on Sun 12 Jul 2009 11:01:55 AM PDT