JSC2001-01884 (22 June 2001) --- Astronaut Scott D. Altman, STS-109 mission commander, dons a training version of the full-pressure launch and entry suit prior to a training session in one of the trainer/mockups (out of frame) in the Space Vehicle Mockup Facility at the Johnson Space Center (JSC). STS-109 will be the 108th shuttle flight and the fourth Hubble Space Telescope (HST) servicing mission.