NASA Photo ID: STS035-71-019       File Name: 10063946.jpg
  Film Type: 70mm                    Date Taken: 12/10/90
  Title: STS-35 ASTRO-1 telescopes documented in OV-102's payload bay (PLB)
  Description:
  During the STS-35 mission, the Astronomy Laboratory 1 (ASTRO-1) payload, in 
  its onorbit operating configuration, is documented in the payload bay (PLB) 
  of Columbia, Orbiter Vehicle (OV) 102.  In the center of the frame, three 
  ultraviolet telescopes are mounted and precisely coaligned on a common 
  structure, called the cruciform, that is attached to the instrument
  pointing  system (IPS).  Visible on the cruciform are the star tracker (S
  TRK) (silver  cone at left), the Ultraviolet Imaging Telescope (UIT)
  (behind S TRK), and  the Hopkins Ultraviolet Telescope (HUT) (at right). 
  In the foreground and  in front of the unpressurized spacelab pallet
  (U-pallet) is the igloo, a  pressurized cylindrical container that houses
  the subsystems that provide  such services as power, telemetry and commands
  to the instruments.              
  Subject terms:
  ASTRO MISSIONS (STS)                    
  COLUMBIA (ORBITER)                      
  INSTRUMENT ORIENTATION                  
  PAYLOAD BAY                             
  POSITIONING                             
  SPACEBORNE ASTRONOMY                    
  STS-35                                  
  ULTRAVIOLET TELESCOPES                  
  

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