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Ref : S10662
Theme :
Testings - Satellites - Probes - Rockets (2314 images)
Title : Applied Physics Laboratory engineers and technicians from Johns Hopkins University
Caption :
(07/24/1997) --- Applied Physics Laboratory engineers and technicians from Johns Hopkins University test solar array deployment of the Advanced Composition Explorer (ACE) in KSC’s Spacecraft Assembly and Encapsulation Facility-II (SAEF-II). The wire hanging from the ceiling above the black solar array panel is used for 'g-negation,' which takes the weight off of the panel’s hinges to simulate zero gravity, mimicking deployment in space. Scheduled for launch on a Delta II rocket from Cape Canaveral Air Station on Aug. 25, ACE will study low-energy particles of solar origin and high-energy galactic particles. The collecting power of instruments aboard ACE is 10 to 1,000 times greater than anything previously flown to collect similar data by NASA
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