JSC2010-E-098594 (22 June 2010) --- NASA astronaut Tim Kopra, STS-133 mission specialist, participates in an Extravehicular Mobility Unit (EMU) spacesuit fit check in the Space Station Airlock Test Article (SSATA) in the Crew Systems Laboratory at NASA's Johnson Space Center. Astronaut Michael Barratt, mission specialist, assisted Kopra.