In the Space Shuttle Processing Facility workers make adjustments on a antenna that will be attached to the Integrated Truss Structure ITS Z1.

In the Space Shuttle Processing Facility, workers make adjustments on a high-gain antenna that will be attached to the Integrated Truss Structure (ITS) Z1. The Z1, part of the payload on mission STS-92 (flight 3A) to be launched in mid-fall, is an early exterior framework for the International Space Station. It will allow the first U.S. solar arrays, on mission STS-97 (flight 4A), to be temporarily installed on Unity for early power