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STEX during ground-testing

Space Technology Experiments, or STEX, also known as NRO Launch 8 or NROL-8, was an experimental NRO satellite built by Lockheed Martin. It was launched on October 3, 1998.[1] One of the experiments was ATEx (Advanced Tether Experiment), which was deployed on 22. January 1999, and subsequently jettisoned.[2]

Advanced Tether Experiment (ATEx) with partially deployed upper end-body


  1. ^ "STEX". NSSDC Master Catalog Search. 2010-10-08. 
  2. ^ "ATEx". NSSDC Master Catalog Search. 2010-10-08. 

External links[edit]

  • STEX at Gunter's Space Page