Observations of double asteroid stress Arecibo radar's vital role in identifying threats in Earth's vicinity

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Observations of double asteroid stress Arecibo radar's vital role in identifying threats in Earth's vicinity

LJK — 11/15/2006 8:06:29 PM (archived)

News from Chronicle Online

Observations of double asteroid stress Arecibo radar's vital role in identifying threats in Earth's vicinity

Nov. 15, 2006

By Lauren Gold
LG34@cornell.edu

Researchers using the Arecibo Observatory's powerful radar have made the most detailed observations ever of a binary near-Earth asteroid (NEA) -- two clusters of rubble circling each other -- offering new clues about how such systems formed, the properties they share and the dynamics of their motion.

The observations, made by Steve Ostro, senior research scientist at the NASA/Caltech Jet Propulsion Laboratory in Pasadena (who earned his master's degree in engineering physics at Cornell), Jean-Luc Margot, assistant professor of astronomy at Cornell, and their colleagues, describe asteroid (66391) 1999 KW4 (called KW4). Their report appears in the latest issue (Nov. 24) of the journal Science. The double asteroid also appears on the cover.

http://www.news.cornell.edu/stories/Nov06/kw4.arecibo.html

The whole thread (46 posts)

Planetary Defense - phil - 11/7/2006 11:40:40 PM
- Let me see if I can clarify it for you - E.P. - 11/8/2006 8:11:30 AM
  - Well Strokes Do Effect Memory - ID - 11/8/2006 4:47:23 PM
    - Pale Ink - E.P. - 11/8/2006 5:22:25 PM
    - What medical condition... - alcaray - 11/8/2006 5:14:54 PM
      - You Tell Me - ID - 11/8/2006 7:44:51 PM
        
        as et pointed out, it is communicable. - alcaray - 11/8/2006 10:22:07 PM
        
        Good Honest Answer! - ID - 11/9/2006 1:16:49 AM
        
        re: Good Honest Answer! - alcaray - 11/9/2006 5:01:00 PM
        
        You Mean Like The People That Wanted To Abolish Slavery, Or Apartheid, or Stop The War In Iraq? - Mark Eby - 11/9/2006 6:27:25 PM
        
        Bizarre parallel! - alcaray - 11/9/2006 6:41:21 PM
        
        I invite y'all to take this to flame. - podrock (as moderator) - 11/9/2006 7:31:54 PM
        
        No Thanks, But We'll End It Here - Mark Eby - 11/9/2006 8:59:57 PM
        
        rising temperature - podrock (as moderator) - 11/9/2006 9:28:50 PM
        
        Ok Clear Enough - Mark Eby - 11/9/2006 9:47:07 PM
        
        I completely agree that it does not belong here, and I apologize to all. - alcaray - 11/9/2006 7:39:53 PM
        
        Thanks, alcaray. (n/t) - mod-podrock - 11/10/2006 1:49:25 AM
        
        Once again, Mark - E.P. - 11/8/2006 7:56:17 PM
        
        re: Once again, Mark - David - 11/12/2006 12:49:44 AM
      - I dunno but it's transmissible by the web apparently. (n/t) - et - 11/8/2006 5:52:00 PM
      - Self preservation - E.P. - 11/8/2006 5:45:07 PM
        
        Wasn't directed at you. I guess the shoe fits, though. (n/t) - alcaray - 11/8/2006 5:50:48 PM
- It's a puzzlement. - Bowser - 11/8/2006 5:51:48 AM
  - Cost-benefit - TB - 11/8/2006 5:53:42 PM
    - Something like the AAVSO or ALPO. - ER - 11/8/2006 6:29:20 PM
      - re: Something like the AAVSO or ALPO. - David - 11/12/2006 12:24:21 AM
      - Excuse me, but amateurs can not provide warning of an impactor - E.P. - 11/9/2006 1:16:24 AM
        
        re: Excuse me, but amateurs can not provide warning of an impactor - David - 11/12/2006 12:10:30 AM
        
        re: Excuse me, but amateurs can not provide warning of an impactor - E.P. - 11/12/2006 3:57:54 PM
        
        re: Excuse me, but amateurs can not provide warning of an impactor - David - 11/12/2006 9:42:36 PM
        
        re: Excuse me, but amateurs can not provide warning of an impactor - E.P. - 11/13/2006 9:27:26 AM
        
        re: Excuse me, but amateurs can not provide warning of an impactor - David - 11/13/2006 9:48:32 PM
        
        re: In general you are wrong. Amateurs have and do detect possible impactors. (n/t) - Chris Vancil - 11/11/2006 4:39:47 AM
        
        re: Excuse me, but amateurs can not provide warning of an impactor - ER - 11/9/2006 3:17:50 AM
        
        re: Excuse me, but amateurs can not provide warning of an impactor - E.P. - 11/9/2006 5:50:24 AM
        
        Do your laundry elsewhere. - ER - 11/9/2006 12:38:52 PM
        
        re: "Do your laundry elsewhere" on Flame - Moderator Nick - 11/11/2006 8:36:01 AM
        
        Just washing the mud off - E.P. - 11/9/2006 1:30:02 PM
        
        Polite, please - Moderator Nick - 11/10/2006 12:35:10 AM
        
        As always, they go first - E.P. - 11/10/2006 11:00:51 AM
        
        Astronomy with Small Telescopes - LJK - 11/9/2006 3:47:28 PM
        
        and impactor detection from space - E.P. - 11/9/2006 4:56:27 PM
  - Let me see if I can clarify it for you as well - E.P. - 11/8/2006 8:20:54 AM
    - 2007 Planetary Defense Conference - LJK - 11/8/2006 2:26:40 PM
      - The private sector: I wonder if they'll rent floor space - E.P. - 11/8/2006 5:28:55 PM
        
        Observations of double asteroid stress Arecibo radar's vital role in identifying threats in Earth's vicinity - LJK - 11/15/2006 8:06:29 PM

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