In the Operations and Checkout Building the Joint Airlock Module is placed in a horizontal position to be transferred to the payload canister.

In the Operations and Checkout Building, the Joint Airlock Module is placed in a horizontal position to be transferred to the payload canister behind it. Then it will be moved to the Space Station Processing Facility where it will continue to undergo preflight processing for the STS-104 mission scheduled for launch aboard Space Shuttle Atlantis May 17, 2001. The Joint Airlock Module is the gateway from which crew members aboard the International Space Station will enter and exit the 470-ton orbiting research facility