Workers in the Space Shuttle Processing Facility SSPF move a antenna for installation onto the Integrated Truss Structure.

Workers in the Space Shuttle Processing Facility (SSPF) move a high-gain antenna for installation onto the Integrated Truss Structure (ITS) Z1, already in the SSPF. The Z1 is an early exterior framework for the International Space Station that will allow the first U.S. solar arrays, on mission STS-97, flight 4A, to be temporarily installed on Unity for early power. The Z1 is a payload scheduled on mission STS-92, the fifth flight to the Space Station, in the fall