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发表于 2008-2-21 12:51:59
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USA 193
This satellite is decayed<-卫星已经坠落.
USA 193 can be found in the following categories:
Military
NORAD ID: 29651
Int'l Code: 2006-057A
Perigee: 407 km
Apogee: 421 km
Inclination: 40°
Period: 92.8 min
Launch date: 2006-12-14
Source: United States (US)
Decay date: 2008-02-20 <-坠落日期
Comments: USA 193 is an American military satellite that was launched from Vandenberg AFB at 21:00 UT on 14 December 2006. It is a highly classified spacecraft, owned and operated by the National Reconnaissance Office (NRO). No further details are available. In January 2008, reports emerged that a U.S. spy satellite, again probably this one, was in a deteriorating orbit, and that the object was expected to crash into the Earth within weeks. Early reports indicated that the satellite could contain "hazardous materials", probably hydrazine, and possibly beryllium,though there was also some speculation that the satellite might have a "nuclear" power core, i.e. a radioisotope thermoelectric generator. Defense consultant John E. Pike dismissed this as "unlikely". (according to Wikipedia) On January 29, 2008, an Associated Press story quoted a U.S. Air Force general as saying that contingency plans were being made since intact pieces of the satellite "might re-enter into the North American area". |
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发表于 2008-2-20 14:12:27
发表于 2008-2-21 11:18:37
