SBIRS Geosynch Satellites Pass Key Design Review

摘要

The U.S. Air Force and Lockheed Martin Space Systems on Nov. 15 successfully completed the critical design review for the third and fourth Space Based Infrared System (SBIRS) geosynchronous satellites, the service announced Nov. 23.rnThe long-delayed SBIRS constellationrnwill be made up of multiple dedicated geosynchronous SBIRS satellites and SBIRS payloads hosted on classified satellites in highly elliptical orbits. Two of the highly elliptical orbiting payloads are now operating, and the government-industry team is hustling to ready the first geosynchronous satellite for a small launch window in April 2011.