NASA Photo ID: STS51B-13-008       File Name: 10061977.jpg
  Film Type: 35mm                    Date Taken: 05/03/85
  Title: Astronaut Frederick Gregory vacuums air filters in avionics bay
  Astronaut Frederick D. Gregory vacuums air filters in avionics bay. The
  51-B  pilot is physically located in the overhead are of the middeck on
  Challenger,  but his activity is only a few meters away from the flight
  Subject terms:
  AIR FILTERS                             
  CHALLENGER (ORBITER)                    
  ONBOARD ACTIVITIES                      
  SPACE SHUTTLE MISSION 51-B              

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