With delivery last week of the second Space Based Infrared System High payload, the Air Force’s SBIRS program manager, Col. Randy Weidenheimer, sees “tangible evidence that the program has turned the corner on several developmental issues.” Comparing it to the earlier payload, delivered in August 2004, Weidenheimer said the Highly Elliptical Orbit 2, or HEO 2, payload “has better technical performance.” SBIRS High comprises two payloads on host satellites in HEO, four satellites in geosynchronous orbit, and fixed and mobile ground data retrieval and processing stations. Prime contractor Lockheed Martin and Northrop Grumman say they are on schedule for final integration and test of the first GEO satellite late this year. USAF expects to launch the first GEO sat in Fiscal 2008.
We looked back on the past 12 months to find the stories that resonated the most with you, our audience, and these 10 topped the list. Maybe you missed one the first time around, or perhaps you’d like to revisit a favorite.