Mir spacewalk ends as partial success
Power cable connections not fully completed
(CNN) -- Two Russian cosmonauts on Mir ended a
longer-than-expected internal spacewalk on Monday but left
some work unfinished after a snag prevented a complete
rewiring of the space station's solar energy system. The
problem may have been due to faulty equipment sent from
Earth.
The repair session ended in a race against time, with the
cosmonauts using up nearly all their oxygen.
Mir commander Anatoly Solovyov told ground controllers the
hatch to Mir's airless Spektr module was closed after he and
engineer Pavel Vinogradov had spent six hours 38 minutes
inside it wearing spacesuits.
They had succeeded in connecting electric cables to only two
of three solar panels on the module, which was punctured and
sealed off after a space crash in June.
A L S O :
Spacewalk aims to refocus solar panels
Solovyov and Vinogradov said they were unable to connect a
third cable, causing the
mission to stretch beyond its scheduled 5 and 1/2 hour length
as their oxygen supply ran low.
"Don't feel distressed," the Mission Control chief told the
crew.
Solovyov and Vinogradov connected Spektr's three undamaged
solar panels to cables that are intended to link them to a
computer guidance system in another module. But the final
element of the task, connecting the cables to three sockets
in the airtight seal before closing up Spektr, had caused
difficulties.
Wrench 'too short'
Solovyov told Mission Control near Moscow during an earlier
radio exchange that they had taken 40 minutes to connect the
first of the three. "It was hard because the spanner (wrench)
you sent up is too short," he told ground staff.
As the two cosmonauts worked, the crew's third man, NASA
researcher David Wolf, sat in the Soyuz escape capsule as a
precautionary step in case a quick evacuation was necessary.
The idea behind the spacewalk was to reconfigure the cables
so that Spektr's solar panels could be connected to a working
computer on Mir's Kristall module, which was not affected by
the June collision.
The plan was for the Kristall's computer to keep the Spektr's
working solar panels in the alignment with the sun, thereby
restoring nearly full power to Mir.
Before the cable reconnecting work began, the two cosmonauts
cleared out floating
junk inside Spektr to give them room to move around easily
inside the narrow module.
"Seven bags are flying around -- and a refrigerator door,"
Solovyov said.
The bags, which contained scientific equipment and personal
belongings, were taped to the walls and a safe place was
found for the door.
On their previous venture into the Spektr in August, Solovyov
and Vinogradov had to remove paneling along the walls, and
this left many items free to drift about.
Correspondent John Holliman and Reuters contributed to this report.