[20060130]RS21148_军事太空计划：关于国防部SBIRS和STSS项目的问题.pdf

1 Space News, Jan. 7, 2002, p. 14.2 Space & Missile Defense Report, Jan. 18, 2001, p. 8. More recent data could not be obtainedin the open literature.Congressional Research Service The Library of CongressCRS Report for CongressReceived through the CRS WebOrder Code RS21148Updated January 30, 2006Military Space Programs: Issues ConcerningDODs SBIRS and STSS Programsname redactedSpecialist in Aerospace and Telecommunications PolicyResources, Science, and Industry DivisionSummaryThe Department of Defenses (DODs) programs to develop new satellites to alertU.S. military commanders to foreign missile launches, and to support missile defenseobjectives, are controversial because of cost growth and schedule slippage. SBIRS-High, managed by the Air Force, would replace existing Defense Support Program“early warning” satellites. The Space Tracking and Surveillance System (STSS,formerly SBIRS-Low), managed by the Missile Defense Agency, would perform missiletracking and target discrimination for missile defense objectives. The SBIRS-Highprogram has breached Nunn-McCurdy cost growth limits several times, resulting inseveral program restructurings. This is the final edition of this report.Satell