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Re: meteorite-impact physics item

To: meteorite-list@meteoritecentral.com
Subject: Re: meteorite-impact physics item
From: Martin Horejsi <martinh@isu.edu>
Date: Tue, 24 Feb 1998 13:42:14 -0700 (MST)
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Hi Ron ,

In your reply to the statement:

>When the red light blinked out, I had the impression that a dark
>object continued along the path before I wasn't able to make anything out
>anymore.

you mentioned:

If the fireball survived the entry, then it should be free falling
straight down at this point.

I remember reading that an average meteor slowing enough to not radiate
light anymore , known as (I believe) the point of retardation, is still
quite high. Maybe around 10-20km in elevation, and it's speed can still be
over 800km per hour. This would place the actual landing of the dark object
a considerable distance from where it would land if it fell straight down.

Are there other forces at work here that could cause a more vertical fall?

Martin

References:

Re: meteorite-impact physics item

From: Ron Baalke <BAALKE@kelvin.jpl.nasa.gov>

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