Expedition 10 Inspects Hatches

Expedition 10 Inspects Hatches, Participates in Biomedical Study

After enjoying a quiet weekend aboard the International Space Station, the
Expedition 10 crew returned to work Monday tackling a number of activities.

Commander Leroy Chiao and Flight Engineer Salizhan Sharipov participated in
a Russian biomedical assessment. They recorded their calf and body mass
measurements for this experiment, which is studying changes in the human
body during long-duration space flight.

Later in the day, Chiao inspected seals on hatches throughout the U.S.
segment of the ISS. In addition to the routine inspection, he cleaned the
hatch seals.

On Nov. 29, Chiao and Sharipov will briefly leave the ISS during a maneuver
to relocate the ISS Soyuz 9 spacecraft. Sharipov, who is the crew's Soyuz
commander, will undock the spacecraft from the Pirs Docking compartment and
redock it to the Earth-facing port on the Zarya Control Module. It will
clear Pirs for use during Expedition 10's upcoming spacewalks. The Soyuz is
slated to undock at 3:29 a.m. CST (0929 GMT) and redock at 4 a.m. CST (1000
GMT).



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Jacques :-)

www.spacepatches.info

Jacques van Oene wrote:
Expedition 10 Inspects Hatches, Participates in Biomedical Study

SNIP

On Nov. 29, Chiao and Sharipov will briefly leave the ISS during a
maneuver to relocate the ISS Soyuz 9 spacecraft. Sharipov, who is the
crew's Soyuz commander, will undock the spacecraft from the Pirs
Docking compartment and redock it to the Earth-facing port on the
Zarya Control Module. It will clear Pirs for use during Expedition
10's upcoming spacewalks. The Soyuz is slated to undock at 3:29 a.m.
CST (0929 GMT) and redock at 4 a.m. CST (1000 GMT).

Without wishing to sound dumb (but may have blown that already), why can't
this manouver be done remotely from inside the ISS, in the same manner that
a re-supply Soyuz can dock. Is it to do with undocking, or is it simply
because it's easier to steer the craft around the structure?

William

William Gordon wrote:
Jacques van Oene wrote:

Expedition 10 Inspects Hatches, Participates in Biomedical Study


SNIP

On Nov. 29, Chiao and Sharipov will briefly leave the ISS during a
maneuver to relocate the ISS Soyuz 9 spacecraft. Sharipov, who is the
crew's Soyuz commander, will undock the spacecraft from the Pirs
Docking compartment and redock it to the Earth-facing port on the
Zarya Control Module. It will clear Pirs for use during Expedition
10's upcoming spacewalks. The Soyuz is slated to undock at 3:29 a.m.
CST (0929 GMT) and redock at 4 a.m. CST (1000 GMT).


Without wishing to sound dumb (but may have blown that already), why can't
this manouver be done remotely from inside the ISS, in the same manner that
a re-supply Soyuz can dock. Is it to do with undocking, or is it simply
because it's easier to steer the craft around the structure?

William


It's a safety consideration. If the redocking fails the crew would have
no way out in an emergency. If there aboard the Soyuz and docking fails
they would just return to earth.

Newfdog

William Gordon a écrit :
Without wishing to sound dumb (but may have blown that already), why can't
this manouver be done remotely from inside the ISS, in the same manner that
a re-supply Soyuz can dock. Is it to do with undocking, or is it simply
because it's easier to steer the craft around the structure?

I don't know if it would be *technically* feasible to relocate the Soyuz
by remote control, but in any case it is not *operationally* viable
because if the Soyuz were unable to redock properly for any reason the
crew would be left with no way of getting home.

In message
"William Gordon" wrote:

Jacques van Oene wrote:

On Nov. 29, Chiao and Sharipov will briefly leave the ISS during a
maneuver to relocate the ISS Soyuz 9 spacecraft.

Without wishing to sound dumb (but may have blown that already), why can't
this manouver be done remotely from inside the ISS, in the same manner that
a re-supply Soyuz can dock.

It's because you'd be completely stuffed if the redocking failed for any
reason.

Anthony