NASA Photo ID: STS041-24-027       File Name: 10064426.jpg
  Film Type: 35mm                    Date Taken: 10/10/90
  Title: STS-41 ISAC deployed on remote manipulator system (RMS) lower arm boom
  Description:
  STS-41 International Telecommunications Satellite Organization (INTELSAT) 
  Solar Array Coupon (ISAC) witness plates are mounted on remote manipulator 
  system (RMS) lower arm boom and are exposed to space environment
  conditions.   The RMS with the ISAC material samples is extended above
  Discovery's, Orbiter  Vehicle (OV) 103's, payload bay (PLB) and over the
  Earth's surface.  One  witness plate contains an 8.5 x 12-inch solar array
  coupon and three 5 x  8-inch aluminum plates painted to provide three
  different temperatures.  The  second witness plate contains one 8.5 x
  12-inch solar array coupon and a  46-position sample holder.  This
  JSC-designed experiment is in preparation  for the possible 1992 rescue of
  INTELSAT-VI, stranded in low orbit earlier  this year.  Quantitative data
  on the interaction of atomic oxygen with the  solar array silver
  interconnects and other INTELSAT materials will be  obtained.         
  
  Subject terms:
  DISCOVERY (ORBITER)                     
  INTELSAT SATELLITES                     
  MATERIALS TESTS                         
  REMOTE MANIPULATOR SYSTEM               
  SOLAR ARRAYS                            
  SPACEBORNE EXPERIMENTS                  
  STS-41                                  
  

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