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Re: Close-Call Asteroid Coming
- To: Ron Baalke <BAALKE@kelvin.jpl.nasa.gov>
- Subject: Re: Close-Call Asteroid Coming
- From: Michael Blood <mblood@access1.net>
- Date: Sat, 29 May 1999 03:51:00 +0000
- CC: meteorite-list@meteoritecentral.com
- Old-X-Envelope-To: <meteorite-list@meteoritecentral.com>
- References: <990528232625.23607156@kelvin.jpl.nasa.gov>
- Reply-To: mblood@access1.net
- Resent-Date: Sat, 29 May 1999 06:52:15 -0400 (EDT)
- Resent-From: meteorite-list@meteoritecentral.com
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>This would be like another Tunguska, wouldn't it?
---
No, 1999 AN10 is in the PHA category and about 1 km in diameter. It
would do major damage if it hit the Earth.
Ron Baalke
---
Ron,
I am confused. You do NOT consider Tunguska "major damage?"
The 65 MYA dynosaur exterminator (as well as about 65 to 75% of all
life on earth) was extimated to be 6 km in diameter.
However, 1 km has "only" a very small fraction of the mass of a 6 km
body.
Personally, I consider Tunguska to have caused ultra major damage (what
was it? Flattened 10,000 square miles?) - however, it was in a nearly
unpopulated area - it certainly would have entirely obliterated any
major city on earth. However, relative to a 6 km diameter body, 1 km is
"relatively" "small." "Major," yes, but still significantly less so than
the impact of the 65myo Yucatan impact. So, what IS the estimated
impact ?
Best wishes, Michael
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