NASA Photo ID: STS035-506-008      File Name: 10063947.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 Integrated Radiator
  System  (IRS) (silver box on left), the Optical Sensor Package (OSP) (above
  IRS),  the Ultraviolet Imaging Telescope (UIT), and the star tracker (S
  TRK) (far  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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