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The STS-91 crew participate in the Crew Equipment Interface Test (CEIT) for their upcoming Space Shuttle mission at the SPACEHAB Payload Processing Facility in Cape Canaveral. The CEIT gives astronauts an opportunity to get a hands-on look at the payloads with which they will be working on-orbit. STS-91 will be the ninth and final scheduled Mir docking and will include a single module of SPACEHAB, used mainly as a large pressurized cargo container for science, logistical equipment and supplies to be exchanged between the orbiter Discovery and the Russian Space Station Mir. The nearly 10-day flight of STS-91 also is scheduled to include the return of the last astronaut to live and work aboard the Russian orbiting outpost, Mission Specialist Andy Thomas, Ph.D. Liftoff of Discovery and its six-member crew is targeted for May 28, 1998, at 8:05 p.m. EDT from Launch Pad 39A. From left to right are STS-91 Pilot Dominic Gorie, STS-91 Commander Charles Precourt, Boeing SPACEHAB Payload Operations Senior Engineer Jim Behling, Boeing SPACEHAB Program Senior Engineer Shawn Hicks, Boeing SPACEHAB Program Specialist in Engineering Ed Saenger, STS-91 Mission Specialist Valery Ryumin with the Russian Space Agency, Boeing SPACEHAB Program Manager in Engineering Brad Reid, and Russian Interpreter Olga Belozerova