vanguard history

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 For those still interested in that old orbiting grapefruit, here's
something I found on SpaceBase-Nasa-News:
 SB-NASA_NEWS 22-3-98 From: Dan Dubrick Subj: 3\20 VANGUARD 1 40TH
ANNIVERSARY
 20 Mar 1998: Vanguard 1 40th Anniversary
 On March 17, 1958, 40 years ago on Tuesday, Vanguard 1 was launched
into Orbit as part of the International Geophysical Year. Vanguard 1
went into an initial orbit apogee of 2465 miles and a perigee of 406
miles. It is still in orbit, having made more than 158,183 orbits at a
velocity of 12,976 miles/hour. There is an interesting and useful World
Wide Web site dedicated to Vanguard 1 located at URL:
http://home5.swipnet.se/~w-52936/index20.htm
 In addition, the NASA history of Vanguard is available on-line at URL:
 http://www.hq.nasa.gov/office/pao/History/sputnik/TOC.html
 Roger D. Launius, Ph.D
 NASA Chief Historian, NASA History Office
 Code ZH
 Washington, DC 20546
 http://www.hq.nasa.gov/office/pao/History/history.html
 
 Cheers, Rich Keen
 Coal Creek Canyon, Colorado, USA (39.877 N, 105.391 W, elevation
2728m)
 

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