STEREO (Solar TErrestrial RElations Observatory) is the third mission in NASA's Solar Terrestrial Probes program (STP). This two-year mission will employ two nearly identical space-based observatories - one ahead of Earth in its orbit, the other trailing behind - to provide the first-ever stereoscopic measurements to study the Sun and the nature of its coronal mass ejections, or CMEs.The twin STEREO (Solar TErrestrial RElations Observatory) spacecraft were launched Wednesday, October 25th, at 8:52 p.m. EDT on a Delta II 7925-10L rocket from Cape Canaveral Air Force Station in Florida. They are well into their primary mission and continue to produce extraordinary scientific findings.
The two STEREO spacecrafts use a host of TiNi Actuators for various applications including deployment of the solar panels and various instrument cover doors. Total units aboard are in excess of 20 and include TiNi FC4 Frangibolts and a host of Pinpullers including P700, P50, P10, and P5s.
http://stereo.gsfc.nasa.gov/
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