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#21213 - 05/03/07 04:19 AM Heard of This Guy?
Wolfman Offline
Senior Member

Registered: 04/17/06
Posts: 264
Loc: Pago Pago, American Samoa
You guys appear to be a pretty erudite group, you've probably heard of this. But for those of you who haven't, allow me to introduce "Apophis".


http://www.topix.net/content/trb/1998297648173313623107336666412536165039

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#21216 - 05/03/07 06:28 AM Re: Heard of This Guy? [Re: Wolfman]
redewenur Offline
Megastar

Registered: 02/14/07
Posts: 1840
Very interesting topic.

re: Apophis

According to NASA the "Impact Probability (cumulative)" is 2.2e-05
http://neo.jpl.nasa.gov/risk/a99942.html

which means:

0.002200000% chance of Earth impact,
or, 1 in 45,000 chance
or, 99.99780000% chance the asteroid will miss the Earth
http://neo.jpl.nasa.gov/cgi-bin/ip?2.2e-05
_________

I've found these worth reading:

Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids [2002]
http://www.noao.edu/meetings/mitigation/report.html
- click the site link for PDF or HTML

NEO Impact Symposium & Secrecy Issues [2003]
http://impact.arc.nasa.gov/news_detail.cfm?ID=122

Optimal Trajectories from the Earth-Moon L1 and L3 Points to Deflect Hazardous Asteroids and Comets [2004]
http://www.annalsnyas.org/cgi/content/abstract/1017/1/370

The Torino Impact hazard Scale [wording revised following publications up to 2004]
http://neo.jpl.nasa.gov/torino_scale.html

_________________________
"Time is what prevents everything from happening at once" - John Wheeler

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