On May
21, 2010 Space shuttle "Atlantis”
American astronauts Michael Good and Garrett Reisman performed a six hour and
46 minute spacewalk. The first task of the spacewalkers was the installation of
an ammonia jumper on the port 4 and 5 truss. They finished the last of the
battery replacement work, swapping the remaining two batteries and installing a
battery that was left in a temporary stow position from the last spacewalk. The
final task was the transfer of a Power and Data Grapple Fixture (PDGF) from the
orbiter’s payload bay to the station for storage. The PDGF will be installed to
the Zarya module’s exterior on a spacewalk later this summer.
