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This Defense Intelligence Agency reference document, dated 11 March 2010, is one of the advanced technology reports produced in FY 2009 under the Advanced Aerospace Weapon System Applications (AAWSA) program. It introduces the Statistical Drake Equation, which replaces each factor of Frank Drake's 1961 equation with a uniform random variable to estimate how far away the nearest extraterrestrial civilization is. In the worked example, there is a 75% probability that the nearest civilization lies between 1,361 and 3,979 light years from Earth.
“The Advance”6 pages
UNCLASSIFIED/ ,'l"e" Cl"l"!e1,it tl9L e11t I An Introduction to the Statistical Drake Equation Prepared by: l(b)(3):10 USC 424 Defense Intelligence Agency Author: Administrative Note COPYRIGHT WARNING: Further dissemination of the photographs in this publication is not authorized. This product is one in a series of advanced technology reports produced in FY 2009 under the Defense Intelligence Agency, gb)(3):10 use 424 !Advanced Aerospace Weapon System Applications (AAWSA) ro ram. Comments or uestions pertaining to this document should be addressed to (b)(3):10 USC 424;(b)(6) , AAWSA Program Manager, Defense Intelligence Agency, ATTN: (b)(3):10 use 424 Bldg 6000, Washington, DC 20340-5100. " UNCLASSIFIED/,., e" e, 1"!e1,it tl91!! 8111:¥
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Report, from the dia collection. The PDF is mirrored here; the original link is above. 55 pages are in the text index: search them above, or from the library's search.