After the success of yesterday’s mission when Mission Specialists Scott Parazynski and Doug Wheelock have managed to repair the torn solar array, the STS-120 crew is scheduled to bid farewell to the Expedition 16 crew before the hatches close at 1:43 p.m. EST between Discovery and the station. The space shuttle is slated to undock a little after 5:30 a.m. Monday.

Yesterday, in a procedure considered to be one of the most complicated in the history of the space station, Scott Parazynski has installed five special links to repair two rips in the solar panel, the oldest on the ISS.

The panel was damaged while astronauts were trying to move and deploy it earlier this week.

To get Parazynski to the damaged solar array, a long boom was attached to the end of the shuttle's robotic arm. Parazynski was attached to the boom with a boot lock, then maneuvered to the site, farther from the space station than is normal on spacewalks.

The solar panel is still generating electricity, so the spacewalk was conducted with insulated tools.

The repairs were needed to boost the space station's power supply, which must be increased to support more than the three-member ISS crew and to run the new European and Japanese modules scheduled to be installed in future shuttle missions to expand the space station.

During their stay at ISS the Discovery astronauts installed the new Italian- made Harmony module, a high-tech hallway and Tinker toy-like hub. It is a 23- by 14-foot passageway that will connect the U.S. segment of the station to the European and Japanese modules, to be installed later this year and early next year, respectively.

Harmony will provide air, electricity and water for the space station, as well as additional lodging for crew members.

During the third spacewalk, the crew installed the P6 truss and solar array pair in its permanent location outboard of the port truss. The fourth spacewalk was changed during the mission so that the crew could repair a torn solar array on the P6 truss.

Discovery also delivered a new station crew member, Flight Engineer Daniel Tani. He replaced astronaut Clayton Anderson. Anderson arrived at the station in June with STS-117.