The DSP (Defense Support Program) Block-3 (a.k.a DSP-I) satellites are the third generation of DSP early warning satellites, which cost about $ 180M per spacecraft. The entire satellite spins so that the linear sensor array in the focal plane scans over the earth six times every minute.ĭSP 14. The satellites are in, and are equipped with infrared sensors operating through a wide-angle. During, for example, DSP was able to detect the launches of Iraqi missiles and provide timely warnings to civilians and military forces in Israel and Saudi Arabia. The Defense Support Program ( DSP) is a program of the that operates the which form the principal component of the Satellite Early Warning System currently used by the United States.ĭSP satellites, which are operated by the, detect or launches and explosions using sensors that detect the emissions from these intense sources of heat. The star tracker is seen pointing off to the side, above and to the right. Primary sensor (lower left) is pointed at Earth.
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