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[/i]](images/image.gif?id=1649159749171 "Advanced Photovoltaic and Electronic Experiments Satellite
The DoD Space Test Program's Advanced Photovoltaic And Electronic Experiments (APEX) satellite was launched on the Pegasus air-launched booster in August of 1994. It carried three Department of Defense experiments which were designed to test the effects of space exposure and radiation on solar arrays and electronic circuits. It was the last Pegasus mission to use the B-52 carrier aircraft.
The primary experiment on APEX is known as the Photovoltaic Array Space Power Plus Diagnostics (PASP-PLUS) experiment. PASP-PLUS was developed by the Geophysics Directorate of the Air Force Phillips Laboratory to provide a space test and demonstration of 12 advanced photovoltaic arrays.
Two secondary experiments were also flown. The Cosmic Ray Upset Experiment was sponsored by the Air Force's Space Systems Division and developed by the Goddard Space Flight Center. The Thin-film Ferroelectric Experiment (FERRO) was developed by the Naval Postgraduate School.
These experiments were flown on a PegaStar spacecraft bus developed for STP by the Orbital Sciences Corporation. Systems Engineering support to the Air Force for the APEX Mission was provided by The Aerospace Corporation.
[i](Source: http://www.geocities.com/CapeCanaveral/Lab/2690/apexmain.htm)[/i]")