Atlas 5 launches SBIRS GEO-1
5/7/11 ~ 2:10pm

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An Atlas 5 rocket, flying in the 401 configuration with no solid rocket boosters and a small four-meter payload fairing, launches on a hazy afternoon from Complex 41 with the first Space-Based Infrared System (SBIRS) satellite, GEO-1. The first in a new geosynchronous orbit-stationed fleet of missile-warning satellites, they are complimented by several others located in highly-elliptical orbits away from the equator. The series is a follow-on to the Defense Support Program (DSP) satellites that spanned 37 years of launches and were sent into space for the last time in November, 2007.

Atlas 5 on the pad

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