BY SPACEFLIGHT NOW
Follow the Expedition 8 crew's spacewalk outside the International Space Station. Reload this page for updates.
FRIDAY, FEBRUARY 27, 2004
0212 GMT (9:12 p.m. EST Thurs.)
The Foale and Kaleri are examining the suit and backpack to determine why the sublimator device appeared to break down during the EVA. The sublimator maintains cooling and regulates humidity within the suit.
0145 GMT (8:45 p.m. EST Thurs.)
0131 GMT (8:31 p.m. EST Thurs.)
Activities that were not performed include relocation of laser light retro reflector devices from the aft end of Zvezda service module and the changing of sample packages in a Russian experiment to examine the residue from station thruster firings. The retro reflectors are being studied as navigation devices for the European Space Agency's Automated Transfer Vehicle, which will begin delivering cargo to the station in the spring or summer of 2005.
0121 GMT (8:21 p.m. EST Thurs.)
0112 GMT (8:12 p.m. EST Thurs.)
0109 GMT (8:09 p.m. EST Thurs.)
0100 GMT (8:00 p.m. EST Thurs.)
"I have rain inside the helmet," Kaleri told Russian flight controllers a little while ago. "I have water inside the visor."
"How much water? Could you estimate?" a controller replied.
"Well, quite some amount, a significant amount. It felt like rain," Kaleri said through a translator.
"It seems the sublimator has failed, according to our telemetry your sublimator has failed," the ground reported.
"You think so?"
"Tell me, can you feel which side the sun is shining, can you feel it on one side of your body?"
"Very insiginficantly. If I didn't know where it was, I couldn't very well guess," Kaleri replied.
"Well then it's not too bad."
"It's not like I'm baking on the beach."
0050 GMT (7:50 p.m. EST Thurs.)
0042 GMT (7:42 p.m. EST Thurs.)
0039 GMT (7:39 p.m. EST Thurs.)
"Russian flight controllers are indicating an apparent failure of a sublimator cooling device, which maintains cooling and regulates humidity within the suit itself."
0028 GMT (7:28 p.m. EST Thurs.)
Kaleri has been instructed to cycle the pumps in hopes of clearing the trouble.
The spacewalkers are currently working with another Russian witness plate experiment while waiting for a decision by officials.
0023 GMT (7:23 p.m. EST Thurs.)
THURSDAY, FEBRUARY 26, 2004
The other MPAC-SEED experiment removed from the station hull today will be brought inside for later return to Earth.
2347 GMT (6:47 p.m. EST)
For the next year, the experiment will provide real-time radiation dosage measurements to a computer inside the service module. The information will be used to determine the amount of radiation that spacewalking astronauts experience.
"The levels of radiation inside the station are well documented though the levels experienced by astronauts outside of the ISS are still unclear. In order to determine precise measurements, Matroshka simulates the human body within a spacesuit as closely as possible," the European Space Agency says.
"The Matroshka experiment facility consists of several different layers, hence the reason for naming it after the famous Russian matrioshka dolls. The simulated human element of the experiment is called the Phantom. It is composed of natural bone and a material, which closely resembles natural tissue. A lower-density material is used to simulate the lungs. These 'tissue' layers are covered with a simulated skin layer. The Phantom is itself housed in an external container, which represents a spacesuit.
"Radiation sensors are placed in and around the Phantom at different key organ locations such as the stomach, lungs, colon, eyes and skin and also within the spacesuit element. Knowing the radiation doses suffered by sensitive body organs is crucial for assessing the hazards from cosmic radiation."
2317 GMT (6:17 p.m. EST)
The second MPAC-SEED package has been moved.
The crew is now preparing to install the Matroshka radiation monitoring experiment on Zvezda.
2305 GMT (6:05 p.m. EST)
2247 GMT (5:47 p.m. EST)
MPAC is designed to capture tiny bits of space debris and micro-meteoroids for scientists to study the size, composition and impact energy of such objects in the space station's orbit.
SEED is exposing different materials to space to help future spacecraft builders in understanding the environment's effects.
2217 GMT (5:17 p.m. EST)
2155 GMT (4:55 p.m. EST)
We will continue to post periodic updates on the spacewalk's progress on this page throughout the evening.
2147 GMT (4:47 p.m. EST)
A bundle of other experiments has been brought out of the airlock for transport to the Zvezda service module. The various packages, including the Matryoshka torso radiation experiment, will be installed by the spacewalkers over the course of the next few hours.
Space station systems are functioning normally, Mission Control says, as the complex operates without anyone side during this spacewalk.
2118 GMT (4:18 p.m. EST)
2105 GMT (4:05 p.m. EST)
2053 GMT (3:53 p.m. EST)
2008 GMT (3:08 p.m. EST)
The crewmen have donned their the Russian Orlan spacesuits and commenced depressurization of the Pirs docking module's airlock for the spacewalk. The spacewalk officially begins at hatch opening.
The to-do list for this spacewalk, the 52nd in the life of the space station and 27th to originate from the orbiting lab, is quite extensive with many chores outside the Russian segment of the complex.
The spacewalkers will remove one suitcase-sized package and relocate another -- both part of the Japanese MPAC-SEED experiment. This experiment is studying micro-meteor impacts and material exposure in the space environment. This experiment was deployed by Expedition 3 in October 15, 2001.
One new experiment that will be attached to the outer hull of the Zvezda service module is a Russian experiment named Matryoshka, which will provide data on radiation exposure to the human body during spaceflight.
Laser light retro reflector devices from the aft end of Zvezda will be removed. The reflectors are being studied as navigation devices for the European Space Agency's Automated Transfer Vehicle, which will begin delivering cargo to the station in the spring of 2005.
They also will change sample packages in a Russian apparatus that is used to study the residue created from station thruster firings.
Michael Foale, making his fourth spacewalk, is designated EV1. He is wearing the spacesuit with blue stripes. Alexander Kaleri, making his fifth spacewalk, is designated EV2. He is wearing the spacesuit with red stripes.
This will be the first International Space Station spacewalk since the resident crews were reduced from three to two people in the wake of the Columbia accident. Therefore, no one will be inside the station during the spacewalk. Space station managers have established a list of rules that would terminate the spacewalk and get the crew back inside to deal with failures of station systems should that occur.
Read our earlier Mission Status Center coverage.
The official mission patch for the International Space Station's Expedition 8 crew is available from our store.
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