Space Station (ISS) Status 12/23/05 - AeroSpace News Space Station (ISS) Status 12/23/05 - AeroSpace News
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Space Station (ISS) Status 12/23/05

A holiday delivery arrived at the International Space Station today
for the Expedition 12 crew. An unpiloted Russian Progress cargo craft
linked up automatically to the station's Pirs Docking Compartment at
approximately 2:46 p.m. EST. The Progress was launched Wednesday from
Baikonur Cosmodrome in Kazakhstan.

Commander Bill McArthur and Flight Engineer Valery Tokarev will open
the hatch to Progress, when leak checks are completed later today.
The crew begins unloading cargo this weekend.

The Progress holds 1,940 pounds of propellant for the station's
Russian thrusters; 183 pounds of back up oxygen and air for the
Russian Elektron system; and 463 pounds of water to augment onboard
supplies. More than 3,000 pounds of spare parts, experiment hardware,
life support components and holiday gifts round out the cargo.


The Progress that arrived Sept. 10 will remain docked until early
March. The crew will stow trash in it, and on Dec. 31, use the
remaining 43 kilograms (94.6 pounds) of oxygen in the craft's tanks
to replenish station cabin pressure.

On Saturday, McArthur and Tokarev plan to document various experiments
in both the U.S. and Russian station modules. They will celebrate
Christmas talking with their families, viewing Earth from orbit and
dining on packaged Russian foods. The meal includes fish, meat
dishes, vegetables and pastries.

Earlier in the week, McArthur and Tokarev conducted routine servicing
of environmental systems and filters and continued biomedical
experiments. McArthur inspected seals around the hatches of the U.S.
modules and down linked educational videos.

The videos explained the differences between U.S. and Russian
spacesuits; demonstrated how materials are recycled on orbit; and how
the principles of Newton's Laws of Motion affect life and work in the
absence of gravity.

McArthur also operated the Capillary Flow-Contact Line and Binary
Colloidal Alloy Test-3 (BCAT-3) experiments. Capillary flow is the
key process used to move fluids in a microgravity environment. The
Contact Line portion examines the interface between the liquid and
solid surface of the container. The experiment investigates capillary
and fluid flows in containers with complex shapes. Results could be
used by designers of low gravity fluid systems in future spacecraft.
BCAT-3 examines the behavior of particles suspended in liquids in
microgravity with potential future commercial applications.

The Elektron oxygen-generation system in the Zvezda module remains up
and running on its primary pump. It will be shut down on Dec. 28, and
the crew will burn solid fuel oxygen generation candles for two days
to recertify the system.

McArthur discussed life and work on the station with newspaper
reporters from his home state of North Carolina. He also spoke about
his mission with students from the Carman Park Elementary School in
Flint, Mich.

On Christmas Day, Tokarev will have a ham radio discussion with
operators at the Gagarin Cosmonaut Training Center in Star City,
Russia. The purpose is to honor cosmonaut Gennady Strekalov, who died
on Christmas Day one year ago at age 64. Strekalov was a veteran of
five spaceflights.

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