[meteorite-list] some Japanese researchers question US Colorado fall

From: Marco Langbroek <marco.langbroek_at_meteoritecentral.com>
Date: Fri, 05 Jan 2007 02:18:20 +0100
Message-ID: <459DA75C.1030802_at_wanadoo.nl>

> Here's a link you can include:
>
> http://www.reentrynews.com/2006063b.html
>
> Best wishes,
> Rob

I made an image showing the position of the rocket stage at the moment of the
sightings in a bit more detail than at the above URL. It is visible here:

http://i19.photobucket.com/albums/b176/marcoaliaslama/satellites/06_063B.jpg

Movement is from north to south along the red line. There is some (minor)
uncertainty in the stage's position along it as the orbit of a decaying object
changes quickly. At this moment it should be at a maximum atmospheric altitude
of 130 km but likely already lower when in decay (Chris mentions 60 km).

The 8 km/s Chris mentions from his all-sky data is exactly the speed an object
decaying from an orbit around the earth should have. Meteors on the other hand
have a minimal speed of 11.2 km/s

- Marco


-----
Dr Marco Langbroek - SatTrackCam Leiden, Cospar 4353
                     - Dutch Meteor Society (DMS)
Leiden, the Netherlands. 52.15412 N, 4.49081 E (WGS84), +0 m ASL

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Received on Thu 04 Jan 2007 08:18:20 PM PST