NASA Photo ID: S90-32754           File Name: 10063543.jpg
  Film Type: 35mm                    Date Taken: 03/27/90
  Title: STS-31 MS Sullivan explains HST operation during T-30 briefing at JSC
  Description:
  STS-31 Discovery, Orbiter Vehicle (OV) 103, Mission Specialist (MS) Kathryn 
  D. Sullivan, using a model, explains the Hubble Space Telescope (HST) 
  aperature door operation during the T-30 (thirty days before launch)
  briefing  at JSC's Auditorium and Public Affairs Facility Bldg 2.
  Crewmembers described  STS-31 mission activities to and answered questions
  from news media  representatives during the conference.                
  
  Subject terms:
  ASTRONAUTS                              
  CONFERENCES                             
  CREW PROCEDURES (PREFLIGHT)             
  CREWS                                   
  DISCOVERY (ORBITER)                     
  HUBBLE SPACE TELESCOPE                  
  NEWS MEDIA                              
  SCALE MODELS                            
  STS-31                                  
  

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