(meteorobs) Very slow meteor 2010 Oct 29 01:52:07 UT from Italy, (Nico Montigiani)

[Esko Lyytinen]

Sorry, I forgot to edit the title in my previous message.

Esko

 >>
Hi,

In my opinion this quite clearly was a normal natural meteor-fireball, 
in spite of the original orbit near that of the Earth.
In any case, this was not a re-entering Earth-satellite.

My statistical model (not published, data from published old Canada 
fireball-camera-network) would give (from the slope (about 25 degrees) 
and end height and Vinf velocity) an estimation to the end mass (of 
assumed normal chondite density meteorite), to be around one or two kg:s.
The dark flight from the end would then be about 25 kilometers 
(projection on the ground), so this quite probably have reached the hard 
ground (not to water).
In addition to other uncertainties, the winds in the free fall may 
affect the location up to some kilometers.)

One recent expected meteorite fall that I studied, had the original 
orbit even more close to that of the Earth. But Vgeo velocities around 
or less than the derived 6 km/s (corresponding Vinf less than 13 km/s) 
are not common, in my experience. Vinf around or above 13.5 km/s are 
getting somewhat more common.

Esko
  ..