The STS-120 crew is at Kennedy for a crew equipment interface test or CEIT.

The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT. Commander Pamela A. Melroy gives a close inspection to space shuttle Discovery in Orbiter Processing Facility bay 3. Among the activities standard to a CEIT are harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton