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Forum:	Satellites - Robotic Probes
Topic:	Upper Atmospheric Research Satellite (UARS)

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Your Reply: HTML is ON UBB Code is ON Smilies Legend	[QUOTE]Originally posted by Robert Pearlman: [B] [QUOTE]Originally posted by Glint: [b]I would be interested to learn how NASA calculated that percentage.[/b][/QUOTE] Nick Johnson, chief scientist for NASA's Orbital Debris Program at the Johnson Space Center in Houston explained how they arrived at the 1 in 3,200 chance. <BLOCKQUOTE>[i]"We look at those 26 pieces and how big they are, and we've looked at the fact they can hit anywhere in the world between 57 degrees north and 57 degrees south, and we look at what the population density of the world is and most of the 7 billion people live in that region, and numerically it comes out to a chance of 1 in 3,200 that one person anywhere in the world might be struck by a piece of debris."[/i]</BLOCKQUOTE> Johnson stressed though, "those are actually, very, very low odds that anybody is going to be impacted by this debris."[/B][/QUOTE]
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