Yurchikhin Credit - www.spacefacts.de

Personal: Male. Born in Batumi, Georgia. Korolev Design Bureau Engineer, Energia NPO

Astronaut Career

Astronaut Group: Energia Engineer Group 14 - 1997. Active Entered space service: 28 July 1997. Number of Flights: 2.00. Total Time: 207.54 days. Number of EVAs: 2.00. Total EVA Time: 0.46 days.

Official NASA Biography

NAME: Fyodor Nikolayevich Yurchikhin (Ph.D.)
RSC Energia Test-Cosmonaut

PERSONAL DATA: Born January 3, 1959, in Batumi, Georgia. Married to Larisa Anatolievna Yurshikina, born in Shyolkovo, Moscow region. They have two daughters. His father, Nikolai Fyodorovich Yurchikhin, and mother, Mikrula Sofoklevna, reside in Sindos, Greece. He also has a brother, 2 years younger. Hobbies include collecting stamps and space logos, sports, history of cosmonautics, and promotion of space. He also enjoys reading history, science fiction and the classics.

EDUCATION: After graduation from high school in Batumi in 1976, he entered the Moscow Aviation Institute named after Sergey Ordzhonikidze. He finished studying in 1983, and is qualified as a mechanical engineer, specializing in airspace vehicles. In 2001, he graduated from the Moscow Service State University with a Ph.D. in economics.

EXPERIENCE: After graduating from the S. Ordzhonikidze Moscow Aviation Institute, Yurchikhin worked at the Russian Space Corporation Energia from September 1983 until August 1997. He held the positions of engineer, senior engineer, and lead engineer.

In August 1997, he was enrolled in the RSC Energia cosmonaut detachment as a cosmonaut-candidate.

From January 1998 to November 1999, he completed his basic training course. In November 1999, he was qualified as a test cosmonaut. In January 2000, he started training in the test-cosmonaut group for the ISS program.

Currently, Yurchikhin is assigned to STS-112 scheduled to launch in 2002.

FEBRUARY 2002

• 7 October 2002 Flight: STS-112. Flight Up: STS-112. Flight Back: STS-112. Flight Time: 10.83 days.

• 7 April 2007 Flight: ISS EO-15. Flight Up: Soyuz TMA-10. Flight Back: Soyuz TMA-10. Flight Time: 196.71 days.

28 July 1997 - Energia Engineer Cosmonaut Training Group 14 selected..

The Progress 9 vehicle linked up to the aft docking port of the Zvezda Service Module of the ISS at 12:01 p.m. Central time (1701 GMT) as the two spacecraft flew over Central Asia after a four-day flight following its launch Wednesday from the Baikonur Cosmodrome in Kazakhstan. The automated docking went off without a hitch as Expedition 5 Commander Valery Korzun, NASA ISS Science Officer Peggy Whitson, and Flight Engineer Sergei Treschev viewed the arrival of the new capsule from inside Zvezda. A few minutes later, hooks and latches closed between the two vehicles to form an airtight seal.

Korzun was prepared to take over manual control of the Progress for the docking in the event its automated rendezvous system did not work, but the linkup was executed flawlessly.

The crew was scheduled to open hatches between Zvezda and Progress this afternoon and will begin unloading supplies from the craft on Monday.

Some of the supplies include clothing and personal items for the Expedition Six crew - Commander Ken Bowersox and Flight Engineers Nikolai Budarin and Don Pettit - who will be launched aboard Endeavour on the STS-113 mission in November to replace Korzun, Whitson and Treschev following the completion of their 5 1/2 month mission.

The older Progress 8 vehicle, which arrived at the ISS in June and which was undocked on Tuesday, remains in orbit a safe distance away from the station, spending another 10 days aloft to enable Russian flight controllers to document smog and smoke over northeastern Russia through its cameras.

The Progress docking clears the way for the launch of Atlantis on the STS-112 mission Wednesday to deliver the 14-ton Starboard 1 (S1) Truss to the station. A Wednesday launch would result in Atlantis' docking to the ISS Friday. Commander Jeff Ashby, Pilot Pam Melroy and Mission Specialists Dave Wolf, Sandy Magnus, Piers Sellers and Fyodor Yurchikhin are in the final stages of their prelaunch preparations.

Aboard Atlantis are Commander Jeff Ashby, Pilot Pam Melroy and Mission Specialists Dave Wolf, Sandy Magnus, Piers Sellers and Russian cosmonaut Fyodor Yurchikhin. A small television camera on the shuttle's external fuel tank captured a unique view of the Earth as Atlantis headed into orbit.

Less than nine minutes after launch, Atlantis and its crewmembers settled into orbit and work began to prepare for a planned 11-day mission.

As Atlantis headed toward space, on board the ISS, Expedition 5 Commander Valery Korzun, NASA ISS Science Officer Peggy Whitson and Flight Engineer Sergei Treschev were completing their 124th day in orbit and their 122nd day aboard the station. At the time of Atlantis' launch, the space station orbited 240 statute miles above the Pacific Ocean west of Ecuador.

Atlantis' crew is setting up equipment on board and preparing to open the shuttle's payload bay doors to begin orbital operations prior to heading to bed just before 9 p.m.

Atlantis is scheduled to dock to the station at about 10:30 a.m. Wednesday, setting the stage for the installation of the S1 truss on the starboard side of the S0 truss, which arrived at the ISS in April. Three spacewalks are scheduled during the mission by Wolf and Sellers to help activate the new truss' systems. The S1 truss is the fourth of 11 truss segments which will form the structural backbone for the station and provide the cooling and support for new solar arrays to be delivered to the station next year.

The shuttle crew will be awakened at 4:46 a.m. Tuesday to begin its first full day in orbit and to prepare for Wednesday's docking.

Aboard Atlantis, Commander Jeff Ashby, Pilot Pam Melroy and Mission Specialists Dave Wolf, Sandy Magnus, Piers Sellers and Cosmonaut Fyodor Yurchikhin were awakened at 4:46 a.m. to the song "Venus and Mars" by Paul McCartney and Wings. It was for Wolf, requested by his wife, Tammy.

The Expedition Five crew, Commander Valery Korzun, NASA ISS Science Officer Peggy Whitson and Cosmonaut Sergei Treschev – in their 18th week in space – were awakened at 3 a.m. Atlantis' crew will be their first visitors since June. They are shifting their sleep schedules to prepare for the week of docked operations with Atlantis.

Today, Atlantis' crew focuses on preparations for rendezvous and docking by checking out the necessary tools. The crew also will prepare the spacesuits to be used during the three planned spacewalks by Wolf and Sellers scheduled for Thursday, Saturday and Monday. The shuttle's robotic arm also will be checked out and used to survey the payload bay, including the Starboard 1 (S1) Truss.

This afternoon the centerline camera will be mounted in the Orbiter Docking System hatch to assist Ashby as he guides the orbiter in for docking. The crew then will extend the docking ring, which makes first contact with the station.

The station crew is continuing with science operations and standard exercise activities. Whitson is working with radiation monitors for Wolf and Sellers, who will conduct the spacewalks to hook up the S1 after it is lifted from Atlantis' cargo bay and installed on the station Thursday. She will activate the monitor's badge readers and do pre-spacewalk background readings.

Atlantis' crew is scheduled to begin an eight-hour sleep period at about 6:30 p.m. today.

All efforts pointed toward the deployment and installation of the Starboard One (S1) Truss. Pilot Pam Melroy, Space Station Commander Valery Korzun, and Mission Specialists Dave Wolf, Piers Sellers, and Fyodor Yurchikhin configured the spacesuits for Thursday's spacewalk. Mission Specialist Sandy Magnus and NASA ISS Science Officer Peggy Whitson reviewed robotic arm operations for moving the new truss segment into place. Sergei Treschev, ISS Flight Engineer, participated in the safety briefing for the station visitors.

Thursday, Magnus and Whitson will use the Canadarm2 from inside Destiny to grapple the huge S1 Truss, take it out of Atlantis' payload bay and move it into position at the starboard end of the S0 Truss. After the segments are soft-mated, capture bolts will make the mating solid. With the truss firmly attached to the station, the spacewalkers will exit the station.

Tomorrow's EVA begins three days of spacewalks – Thursday, Saturday and Monday - at the station-shuttle complex. Shuttle and Mir veteran Wolf and space rookie Sellers will perform the EVAs, which are primarily focused on the installation and hookup of the S1 segment. In Thursday's six-hour spacewalk, Wolf and Sellers will connect power, data and fluid umbilicals between the segments; install a camera and antenna assembly; and release a number of launch restraints. Wolf will ride on the end of the robotic arm for most of the excursion, while Sellers will be a "free floater" moving around the truss structure.

Tonight the crew is scheduled to begin its sleep period at 6:46 p.m. with the wake-up call to sound at 3:16 a.m. Thursday.

Shortly after the musical wakeup call to the crew at 2:46 this morning – Tina Turner's "The Best" for Commander Jeff Ashby from his wife, Paige – the shuttle crew focused its attention on the rendezvous and docking procedures that will culminate with the orbiter docking to a port on the U.S. Destiny Lab of the station.

The Terminal Initiation burn preceding the final approach is planned for 8:04 a.m. and occurs with the two spacecraft 50,000 feet apart. That is followed by a series of four small correction burns, which set the stage for Ashby's taking manual control of Atlantis' thruster jets as he looks out the overhead and rear windows of the flight deck. He will fly Atlantis to a point 600 feet below the station, then begin a quarter circle alignment of the orbiter's docking system and Destiny, which will place the shuttle about 300 feet in front of the station.

Assisting with the rendezvous using lasers and computers are the remaining shuttle crewmembers, including Pilot Pam Melroy and Mission Specialists Dave Wolf, Sandy Magnus, Piers Sellers and Russian cosmonaut Fyodor Yurchikhin.

Awaiting the arrival of Atlantis are the three station crewmembers – Commander Valery Korzun, NASA ISS Science Officer Peggy Whitson and Flight Engineer Sergei Treschev – in their 126th day in space.

Thursday will see the installation of the station's newest component – the Starboard 1 (S1) Truss – and shortly thereafter, the first of three planned spacewalks will begin by Wolf and Sellers to connect power, data and fluid lines between S1 and the station.

Crew sleep is set to begin about 6:30 this evening.

On Thursday, crewmembers attached the 14-ton, 45-foot Starboard One (S1) truss to the station, using the station's Canadarm2 operated by Atlantis' Sandy Magnus and NASA ISS Science Officer Peggy Whitson. That was followed by the first of three planned spacewalks by Dave Wolf and Piers Sellers to complete a series of tasks, including connecting power lines to the station.

The spacewalk lasted 7 hours, 1 minute and brings the total time for ISS assembly via Extravehicular Activity (EVA) to 272 hours, 45 minutes.

In addition to the time off and transfer operations, Wolf and Sellers will prepare the tools and other equipment for use during tomorrow's second spacewalk. Just before their evening meal, crewmembers will gather to review Quest Airlock procedures for the spacewalk, which is expected to begin about 9:40 a.m. Saturday.

The crew will take part in two interviews today. First, the three Russian crewmembers – Expedition Five Commander Valery Korzun, Expedition Five Flight Engineer Sergei Treschev and STS-112 Mission Specialist Fyodor Yurchikhin – will discuss the mission with Russian press beginning at 10:46 a.m. Later in the day at 1:56 p.m., Wolf, Sellers, Magnus and possibly other crewmembers will be interviewed by CBS Radio, Fox News and the Cable News Network (CNN). Both interviews can be seen on NASA Television.

Today's wakeup call to Pilot Pam Melroy and the rest of Atlantis' crew came at 3:46 a.m. "Oh Thou Tupelo," performed by the Wellesley College Choir, was for Melroy, a 1983 graduate. The station crew woke up about 4:15 a.m. today.

The Atlantis and ISS complex is orbiting the Earth every 92 minutes at an altitude of 244 statute miles.

The crew moved a number of scientific experiments back and forth between the vehicles to return completed experiments to Earth and deploy new experiments at the station. Transfer items included a set of liver cell tissue samples from an experiment studying the function of human liver cells in microgravity, moved from the station onto the shuttle for return to Earth. Payload experiments such as Marshall Space Flight Center's protein crystal growth thermal enclosures for growing high-quality protein crystals in micro-gravity experiments were moved to and from the station. Seven water containers were transferred to the station.

Commander Jeff Ashby initiated a nitrogen transfer process that moved about 15 pounds of the gas from the shuttle to the station by the end of Friday. About another 35 pounds will be transferred through Flight Day 8.

STS-112 spacewalkers Dave Wolf and Piers Sellers, assisted by Pilot Pam Melroy, readied the EVA equipment for Saturday's excursion outside the station-shuttle complex. They recharged water on the extravehicular mobility unit, configured their tools and prepared the airlock.

Since it wasn't an EVA day, there was time for the crew to relate their experiences to several media organizations during live interviews. STS-112 Mission Specialists Sandy Magnus, Wolf and Sellers discussed Thursday's EVA and first-time experiences in space with CBS Radio Network and Cable News Network (CNN). Russian Commander Valery Korzun, Expedition Five Flight Engineer Sergei Treschev and STS-112 Mission Specialist Fyodor Yurchikhin participated in several interviews with the Russian press.

This evening, shortly before sleep, the crew reviewed procedures for tomorrow's spacewalk. Saturday the spacewalkers reverse positions for most of the EVA, with Sellers riding the arm and Wolf free-floating while tethered to the station. They'll attach umbilicals, install a second camera - this time on the U.S. laboratory Destiny, install spool positioning devices to quick disconnect fittings on ammonia lines and release radiator beam launch locks.

Completing the day, the crew had a joint meal in the Service Module. Wake up time Saturday is 4:16 a.m.

The nine astronauts and cosmonauts also will conduct a press briefing from the U.S. Laboratory Destiny at 1:30 p.m. Sunday. The news conference will air live on NASA Television.

Later today, one of the radiators on the newly installed S1 Truss will be remotely deployed to verify the connections established on the first spacewalk last Thursday. Its extended length will be 75 feet with each of the eight panels being 11 feet wide. The cooling system will not formally be activated until next year.

One major task inside the station today is the replacement of the exercise treadmill's vibration dampening system. The treadmill is located in the Russian Zvezda module – the station's living quarters – and is designed to significantly reduce or eliminate vibration during workouts that otherwise could negatively affect sensitive experiments being conducted on board. The unit is one of the major exercise devices aboard the station, and important in maintaining fitness during long-duration spaceflight.

Transfer work continues through much of the day while oxygen is transferred from Atlantis to high-pressure storage tanks on the outside of the Quest Airlock.

In preparation for Monday's spacewalk, the suits will be recharged with water, and tools will be configured. Prior to going to bed, all nine crewmembers will review spacewalk and airlock procedures.

The day began with a wakeup call at 4:07 a.m. for Mission Specialist Fyodor Yurchikhin. The "Aviation March," composed by Isaac Dunaevsky, is the hymn of the Moscow Aviation Institute, Yurchikhin's alma mater.

The first steps in changing Atlantis from a spaceship to an airplane are to test its aero surfaces, required as the orbiter begins to interact with the upper atmosphere on reentry and landing. Also tested today are the thruster jets on the nose and tail of Atlantis which maneuver the vehicle prior to dropping below 400,000 feet in altitude following the deorbit burn.

Atlantis' computers systematically deactivate these jets when desired air pressure readings are detected at various stages throughout entry and landing.

The crew of Commander Jeff Ashby, Pilot Pam Melroy and Mission Specialists Dave Wolf, Sandy Magnus, Piers Sellers and Cosmonaut Fyodor Yurchikhin spend the day stowing equipment, supplies and belongings in preparation for tomorrow's anticipated return to the Kennedy Space Center in Florida.

At 11:46 this morning, the crew will discuss the success of the mission with media representatives from the AP Radio Network, KMOX Radio of St. Louis and WISH-TV of Indianapolis. The interview will air on NASA Television.

Behind the shuttle at a distance of 120 miles (193 kilometers), the ISS Expedition Five crew of Commander Valery Korzun, NASA ISS Science Officer Peggy Whitson and Cosmonaut Sergei Treschev are preparing for their next visitors, a Soyuz taxi crew scheduled to arrive late this month. The taxi crew will return to Earth in the Soyuz at the station, which is nearing its certified on orbit life limit.

The shuttle crew began its last full day on orbit with a wakeup call from Mission Control at 2:18 a.m. The song "These are the Days" performed by Natalie Merchant was played for Sellers at the request of his wife.

Atlantis' crew sleep begins at about 6:30 this evening and the crew will be awakened at 2:16 a.m. Friday to begin landing preparations.

Commander Jeff Ashby, Pilot Pam Melroy and Flight Engineer Sandy Magnus activated one of three hydraulic power units on Atlantis, tested all of the orbiter's aerosurfaces, and then test-fired the steering jets. All of the systems are in good shape for reentry and landing. The remaining crew members - Dave Wolf, Piers Sellers and Fyodor Yurchikhin - continued packing up gear and hardware in anticipation of tomorrow's landing.

Atlantis has two opportunities to land at the Kennedy Space Center (KSC) on Friday. The first begins with a deorbit burn of the Orbital Maneuvering System engines at 9:36 a.m., followed by a landing at 10:44 a.m. Central (11:44 a.m. Eastern.) In the event weather prevents a landing on that first opportunity, there is a second opportunity, beginning with a deorbit burn at 11:16 a.m. and resulting in a 12:21 p.m. Central (1:21 p.m. Eastern) landing in Florida.

Tomorrow's weather forecast for the shuttle landing facility at KSC is favorable. The backup-landing site at California's Edwards Air Force Base was not called up for support Friday. Atlantis has sufficient consumables to remain in orbit, if necessary, until Tuesday.

Atlantis' crew will begin a scheduled eight-hour sleep period at 6:16 p.m. today, waking just after 2 a.m. Friday to prepare for a homecoming to the Kennedy Space Center. Actual deorbit preparations will get underway at 5:40 a.m. Atlantis' payload bay doors are scheduled to be closed at 6:56 a.m. and the crewmembers will get into their seats at 8:36 a.m.

Meanwhile, aboard the International Space Station, the Expedition Five crew - Commander Valery Korzun, NASA ISS Science Officer Peggy Whitson and Flight Engineer Sergei Treschev - enjoyed a few hours of off-duty time today. Tomorrow they will turn their attention back to unpacking the Russian Progress resupply vehicle that arrived at the station in late September.

Atlantis has two landing opportunities at KSC. The first begins with the firing of the shuttle's braking rockets at 9:36 a.m. and a landing at 10:44 a.m. CDT. A second opportunity for a KSC landing would see the deorbit burn at 11:16 a.m. and a landing at 12:21 p.m. Forecasts call for favorable weather for landing, with scattered clouds, good visibility and 10-knot winds.

The backup-landing site at California's Edwards Air Force Base will not be activated today. Atlantis has enough consumables to stay in orbit until Tuesday.

The crew, Commander Jeff Ashby, Pilot Pam Melroy and Mission Specialists Dave Wolf, Sandy Magnus, Piers Sellers and Cosmonaut Fyodor Yurchikhin, was awakened at 2:25 a.m. by "Someday Soon," performed by Suzy Bogguss. It was for Ashby, requested by his wife.

Deorbit preparations began about 5:40 a.m. The payload bay doors are to be closed at 6:56 a.m.

About 3,000 miles behind the shuttle, the ISS Expedition 5 crew, Commander Valery Korzun, NASA ISS Science Officer Peggy Whitson and Cosmonaut Sergei Treschev, is in its 135th day in space. Crewmembers are awaiting a taxi crew scheduled to arrive late this month with a replacement for the Soyuz now at the station. Expedition 5 is to return home on the STS-113 mission of Endeavour, scheduled for launch with their Expedition 6 replacements no earlier than Nov. 10.

During the week it was docked to the station, Atlantis did two reboosts of the orbiting laboratory, raising its altitude by about six miles. Another station reboost was performed about 3:25 a.m. today using the engines of the Progress unpiloted cargo carrier docked to the rear of the Zvezda Service Module. It was to raise the station's altitude an additional 6.9 miles and adjust the orbit for the arrival of the new Soyuz. The station's average altitude after the reboost was expected to be 249 miles.

If Atlantis lands on time, crewmembers are tentatively scheduled to return to the Johnson Space Center in Houston Saturday afternoon.

An altitude reboost engine firing planned for Friday was postponed following the launch delay of Space Shuttle Atlantis earlier this week. The STS-117 mission had been targeted for liftoff on March 15, but was put on hold following a hail storm Monday resulting in damage requiring repair to the external fuel tank's foam.

Russian flight controllers now plan two engine firings on March 16 and 28 to increase the station's altitude, which will place the station in the desired orbit for arrival of a Soyuz spacecraft set to launch April 7. The Soyuz will bring Expedition 15 Commander Fyodor Yurchikhin, Flight Engineer Oleg Kotov and spaceflight participant Charles Simonyi to the station. Docking to the station is April 9. Expedition 14 Commander Mike Lopez-Alegria, Flight Engineer Mikhail Tyurin and Simonyi plan to land in Kazakhstan April 19.

Space station managers are reviewing the work planned aboard the station for the remaining weeks of Expedition 14 and for Expedition 15 in light of the shuttle launch delay. The review seeks to optimize use of the crews' time due to the shuttle's delay.

Thursday, the station crew was awakened briefly by a caution signal when the starboard Thermal Radiator Rotary Joint (TRRJ) experienced a dropout in commands from the Rotary Joint Motor Controller. The TRRJ automatically defaulted to another command link, and there was no impact to operations. Engineers are analyzing what may have caused the problem. The rotary joint turns the radiator to provide the best possible cooling.

Flight Engineer Suni Williams practiced on a laptop computer simulation Wednesday to maintain her skill in using the station's Canadarm2 robotic arm. She also joined her fellow crewmates in the Test of Reaction and Adaptation Capabilities experiment to gather hand-eye coordination data before, during and after their mission. TRAC Principal Investigator Dr. Otmar Bock of the German Sport University in Cologne, Germany, hopes to better understand how the brain adapts during spaceflight. The experiment will be performed during both Expedition 14 and Expedition 15.

Commander Michael Lopez-Alegria and Flight Engineer Suni Williams spent time working with experiments that may hold the key to several aspects of long-duration space flight as NASA looks forward to missions back to the moon and on to Mars or other destinations.

Each served as test subject and operator for the Anomalous Long Term Effects in Astronauts' Central Nervous System experiment that examines how cosmic radiation affects brain waves. As test subjects, they wore an electroencephalograph cap that records readings of their brain functions, and over that, a special helmet with Italian-designed instruments that records the amount and types of cosmic rays passing through the station. Since cosmic radiation is even more prevalent at greater distances from Earth, the research could lead to countermeasures important to the safety and productivity of future explorers.

Lopez-Alegria and Williams also worked with the Nutritional Status Assessment experiment tracking how their bodies process nutrients in space and how food supplies are affected by storage in that environment.

Additionally, Lopez-Alegria provided the final samples associated with the Renal Stone Risk during Spaceflight: Assessment and Countermeasure Validation investigation, which is looking at the space effectiveness of a drug used on Earth to prevent kidney stones.

Flight Engineer Mikhail Tyurin worked with three Russian experiments that monitor cosmic rays and background radiation as they relate to long-duration flights and documented the condition of the Earth below from the unique vantage point of the station.

The crew worked on an upgrade to the laptop computer network. The new, integrated station computer network will be 10 times faster than the current network, using Ethernet connectivity over a router and either cables or wireless equipment. This will eliminate drag-through cables from the U.S. segment into the Russian segment. The work was accelerated because of the STS-117 launch delay.

They also continued preparations for the undocking and discarding of the ISS Progress 23 cargo ship, which will be full of trash when it departs Tuesday, March 27. Russian flight controllers sent commands Friday that piped the last of the Progress 23 oxygen supplies into the station, and vented the Progress' propellant and oxidizer lines overboard to ensure a safe departure. The Progress is scheduled to undock at 1:11 p.m. CDT next Tuesday.

The station traffic schedule includes next Thursday's relocation of the Soyuz TMA-9 spacecraft from the Earth-facing port of the Zarya module to the aft port of the Zvezda Service Module. All three crew members will undock the Soyuz at 5:25 p.m. and redock at 5:53 p.m. This will make room for the arrival of the Soyuz TMA-10 spacecraft carrying the Expedition 15 crew and U.S. spaceflight participant Charles Simonyi. The new crew is scheduled to launch from the Baikanour Cosmodrome in Kazakhstan April 7 at 12:31 p.m. and dock with the station April 9 at 2:15 p.m.

Following a week of joint operations, Lopez-Alegria, Tyurin and Simonyi will climb into Soyuz TMA-9 and head for home April 20. They will leave Commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov on board with Williams to start Expedition 15.

Flight Engineer Mikhail Tyurin guided the Soyuz away from the Earth-facing port of the station's Zarya module and docked it to the aft port of the Zvezda module. The move frees the Zarya port for the arrival of the Expedition 15 crew aboard the Soyuz TMA-10, scheduled to dock to the station on April 9.

Tyurin undocked the Soyuz from Zarya at 5:30 p.m. CDT and redocked to the Zvezda port at 5:54 p.m. CDT as the station and the Soyuz flew 210 miles above the east coast of South America. Minutes later, hooks and latches engaged between the Soyuz' docking probe and Zvezda's docking port to attach the craft firmly to the station. During the time from undocking to redocking, the crew traveled about a third of the way around the world.

To prepare for Thursday's undocking and relocation, Commander Michael Lopez-Alegria and flight engineers Tyurin and Sunita Williams shut down key station systems and configured the complex for autonomous operations in the unlikely event they would not be able to redock.

Prior to undocking, Tyurin activated the Soyuz’ backup battery as a precaution when the prime spacecraft battery indicated a slightly lower voltage reading. It was quickly determined that the voltage drop was due to the activation of some Soyuz systems, and the prime battery soon returned to its normal voltage output.

Late Thursday into early Friday, the crew will open the hatch to the Soyuz, re-enter the station and reactivate systems for regular activity. Friday will be an off-duty day for the crew as they readjust their sleep cycles, which were changed to accommodate the Soyuz move.

Further preparation for the Soyuz relocation included the undocking and discarding of the ISS Progress 23 cargo craft from the aft Zvezda port on Tuesday, March 27, making room for the Soyuz to redock. That activity went smoothly; the ISS Progress undocked at 1:11 p.m. CDT and re-entered Earth's atmosphere at 5:44 p.m.

Additional work for the crew this week included a first for the Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) experiment. The experiment uses 8-inch diameter spherical satellites that fly within the station cabin. The satellites test the basics of formation flight and autonomous docking that could be used in future spacecraft. The battery-powered satellites use carbon dioxide to fuel 12 thrusters as they fly in the cabin. During a weekend "Saturday Science" session, Williams conducted a SPHERES experiment run. This was the first time three satellites flew together in tests. Investigators for the Massachusetts Institute of Technology, Cambridge, deemed the experiment highly successful.

Back on Earth, Expedition 15 cosmonauts Commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov, along with spaceflight participant Charles Simonyi, a U.S. businessman, prepared for their April 7 launch at the Baikonur Cosomodrome, Kazakhstan.

Cosmonauts Fyodor Yurchikhin, Expedition 15 commander, and Oleg Kotov, Expedition 15 flight engineer, and spaceflight participant Charles Simonyi, a U.S. businessman, are scheduled to launch from the Baikonur Cosmodrome in Kazakhstan about 12:30 p.m. CDT Saturday. Their Soyuz TMA-10 spacecraft is scheduled to dock with the station about 2:12 p.m. Monday.

The Expedition 14 crew, Commander Michael Lopez-Alegria and Flight Engineer Mikhail Tyurin, will return to Earth with Simonyi on April 20. In preparation for their departure, Lopez-Alegria and Tyurin reviewed descent procedures.

Flight Engineer Suni Williams, who joined Expedition 14 in progress, will remain on the station as an Expedition 15 crew member for the first part of its increment. The two crews held a space-to-ground conference on Wednesday discussing upcoming mission activities.

On Monday, Lopez-Alegria set a new U.S. single-mission spaceflight record, passing the 196-day mark previously set by station crew members Dan Bursch and Carl Walz in 2001 and 2002.

The Expedition 14 crew performed periodic fitness evaluations this week. Additionally, they worked on a video tape recorder and on a faulty light of an ophthalmoscope that was used during a health check. They downloaded information from the Internal Wireless Instrumentation System, or IWIS, which monitors the health of the station's systems.

The crew continued scientific activities aboard the station. Williams tested a bacteria detection instrument developed by researchers at Marshall Spaceflight Center in Huntsville, Ala., and industry partners. The device, Lab-On-a-Chip Application Development Portable Test System (LOCAD-PTS) is a portable bacteria detection system small enough to fit into a compact ice cooler. Four more sessions with LOCAD-PTS are planned for upcoming weekend science sessions.

Lopez-Alegria and Tyurin tested their hand-eye coordination by completing their sixth sessions with the Test of Reaction and Adaptation Capability (TRAC) experiment. The experiment studies whether the decline of motor skills during spaceflight is a result of the brain adapting to space. The hand-eye coordination test is performed before, during and after the mission.

The crew also continued their work with the Anomalous Long-Term Effects in Astronauts' Central Nervous System (ALTEA) experiment. Using an instrumented helmet, the experiment measures the cosmic radiation that passes through a crew member's head, brain activity and visual perception. The experiment should help researchers better understand what levels of cosmic radiation crew members are exposed to and develop countermeasures for future long-duration spaceflights.

The EO-15 crew and EP-13 space tourist Shukor (brought to the station by Soyuz TMA-11) boarded Soyuz TM-10 and undocked from the Zvezda port at 07:14 GMT on 21 October. The re-entry burn began at 09:47 and was normal. But afterwards, due to failure of an explosive bolt, the Soyuz service module remained connected to the re-entry capsule. The Soyuz tumbled, then began re-entry with the forward hatch taking the re-entry heating, until the connecting strut burned through. The Soyuz the righted itself with the heat shield taking the heating, but defaulted to an 8.6 G ballistic re-entry, landing 340 km short of the aim point at 10:36 GMT. Improved procedures after the ballistic re-entry of Soyuz TMA-1 meant a helicopter recovery crew reached the capsule only 20 minutes after thumpdown. However the true nature of the failure was concealed from the world until the same thing happened on Soyuz TMA-11.

Less than 10 minutes after launch their spacecraft reached orbit and its antennas and solar arrays deployed. The Soyuz TMA-10 spacecraft is scheduled to dock at the station at a little after 2 p.m. Monday.

Once they arrive at the station, Cosmonauts Fyodor Yurchikhin, Expedition 15 commander, and Oleg Kotov, Expedition 15 flight engineer, and spaceflight participant Charles Simonyi, a U.S. businessman, will be greeted by the station’s current crew, Expedition 14 Commander Michael Lopez-Alegria and flight engineers Mikhail Tyurin and Suni Williams.

Simonyi, flying under contract with the Russian Federal Space Agency, will return to Earth on April 20 with Lopez-Alegria and Tyurin, who have been aboard the station since September 2006.

Williams, who has served as an Expedition 14 crew member since December, will remain on the station joining the Expedition 15 crew. She is scheduled to return home aboard space shuttle Endeavour this summer.

After hatch opening, scheduled for a little before 4 p.m., Expedition 15 Commander Fyodor Yurchikhin, Flight Engineer Oleg Kotov, and Spaceflight Participant Charles Simonyi, a U.S. businessman, will be greeted by the station’s current crew, Expedition 14 Commander Michael Lopez-Alegria and flight engineers Mikhail Tyurin and Suni Williams.

Williams, who has served as an Expedition 14 crew member since December, will remain on the station providing Expedition 15 with an experienced flight engineer for the early part of its mission. She is scheduled to return home aboard space shuttle Endeavour this summer.

Yurchikhin is making his second flight into space. He was crew member on space shuttle Atlantis’ STS-112 mission to the station in October 2002. He holds a Ph.D. in economics and was named a cosmonaut-candidate in 1997. Kotov is making his first spaceflight. He graduated from the Moscow Medical Academy in 1988, and was named a cosmonaut-candidate in 1996.

Astronaut Clay Anderson is scheduled to replace Williams during Expedition 15. Two Expedition 16 crew members are expected to arrive next fall to replace Yurchikhin and Kotov.

Simonyi, flying under contract with the Russian Federal Space Agency, will return to Earth on April 20 with Lopez-Alegria and Tyurin, who have been aboard the station since September 2006.

E15 Commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov arrived at the station Monday after a Saturday launch from the Baikonur Cosmodrome in Kazakhstan. With them on their Soyuz TMA-10 spacecraft was Spaceflight Participant Charles Simonyi, a U.S. businessman flying under a contract with the Russian Federal Space Agency.

Expedition 14 Commander Michael Lopez-Alegria and Flight Engineer Mikhail Tyurin are scheduled to return home in their Soyuz TMA-9 spacecraft April 20. Simonyi will return with them after about 11 days on the orbiting laboratory.

Lopez-Alegria, who came to the station with Tyurin last September, continuously sets new U.S. single spaceflight duration records. Williams is likely to break Lopez-Alegria's record with her return tentatively planned for August after serving as an E15 crew member for the early part of that increment.

This week, in addition to handover, both crews got in their regular exercise sessions – especially important for Lopez-Alegria and Tyurin as their return to Earth approaches. Crews did required station maintenance and still managed to spend considerable time on science activities. Those activities began with time-critical transfer of several experiments from the newly arrived Soyuz to the station and station power.

Among experiments getting crew attention were Bioemulsion, a Russian effort to develop technology to produce microorganisms safely for bacterial, fermental and medical preparations. Tyurin worked with that experiment Tuesday.

On Wednesday Kotov set up the European Exhaled Nitric Oxide-2 experiment. It measures nitric oxide exhaled by spacewalkers before and after their excursions. The idea is to better understand the potential for decompression sickness.

Meanwhile, Tyurin worked with the Russian Pilot experiment. It is designed to measure during long-duration spaceflight changes in a crew member's ability to pilot a spacecraft.

On Thursday, Lopez-Alegria spent more than three hours resizing U.S. spacesuits for future users. The suits were the ones they used on an unprecedented series of three station spacewalks in a nine-day period beginning Jan. 31.

Throughout much of the week, beginning with the crew news conference on Tuesday, crew members took breaks to talk with news media representatives. U.S. organizations whose reporters interviewed them included ABC News, Space.com, CNN, and CBS.

E14 Commander Michael Lopez-Alegria and Flight Engineer Mikhail Tyurin, accompanied by Spaceflight Participant Charles Simonyi, will touch down in central Kazakhstan in their Soyuz spacecraft about 7:30 a.m. CDT Saturday, a day later than planned.

The primary landing site will be too wet for landing operations due to the spring thaw. The one-day delay in landing will allow for touchdown in a more southerly landing zone.

The landing will conclude a 215-day flight for Lopez-Alegria and Tyurin, and mark the longest single flight by an American astronaut. Live coverage of the landing operations will begin on NASA-TV Saturday at 12:30 a.m. for hatch closing, then will return at 3:45 a.m. for undocking, and resume at 6:15 a.m. monitoring the deorbit burn and landing.

Crew members held a ceremony Tuesday afternoon marking the change of command of the station from Lopez-Alegria to Expedition 15 Commander Fyodor Yurchikhin. Yurchikhin and flight engineers Oleg Kotov and Suni Williams are now officially entrenched on board the station. Williams, who served as an Expedition 14 crew member since December, will provide Expedition 15 with an experienced flight engineer for the early part of its mission.

On Monday, Williams became the first person to run a marathon in space. Williams, an accomplished marathoner, was an official entrant in the Boston Marathon and ran the 26.2 mile race on a station treadmill in the Zvezda module, circling Earth at least twice in the process. Williams’ run coincided with the tens of thousands on the ground. She completed her marathon with an official time of 4:23:10.

Russian specialists are preparing plans to repair the Condensate Feed Unit in the Russian system that processes condensate recovered in the U.S. segment of the station into potable water. Since the unit failed over the weekend, the supply of drinking water has been decreasing faster than the replenishment rate. Even if they are unable to repair the unit, there is enough water already onboard to last until the ISS Progress 25 cargo vehicle docks in mid-May, providing a new supply of water.

For about 90 minutes, Lopez-Alegria completed his final session with the Anomalous Long-Term Effects in Astronauts' Center Nervous System (ALTEA) experiment, which investigates the phenomenon of crew members seeing flashes of light while in orbit. Using an instrumented helmet, the experiment measures the cosmic radiation that passes through a crew member's head, brain activity and visual perception. ALTEA should help researchers better understand what levels of cosmic radiation crew members are exposed to and develop countermeasures for future long-duration spaceflights.

Lopez-Alegria and Williams also worked on an Education Payload Operations activity linked to the International Polar Year. The crew members videotaped their Earth photography activities and their observations of sea ice and auroras. These images will later be used in NASA education videos sent to classrooms around the world.

Education Payload Operations include curriculum-based activities that demonstrate basic principles of science, mathematics, technology, engineering and geography. They are designed to support the NASA mission of inspiring the next generation of explorers.

The Expedition 14 mission included many highlights during its seven-month duration, including the setting of several records. Lopez-Alegria completed five spacewalks, which gave him a total of 10 for his career. This set a U.S. record for not only number of spacewalks, but also cumulative spacewalk time, 57 hours, 40 minutes. He also set a U.S. record for a single spaceflight's duration with more than 215 days. This tops the 196-day mark, set by station crew members Dan Bursch and Carl Walz in 2001 and 2002.

During the mission Flight Engineer Sunita Williams set the record for number of space walks and total time spent on spacewalks by a woman. She participated in four space walks for a total of 29 hours and 17 minutes. Williams will remain on the station for the first part of Expedition 14.

Three of the crew's spacewalks were conducted over the course of nine days, an unprecedented schedule for a station crew. Starting from scratch, it takes about 100 crew-member hours to prepare for a spacewalk. By doing them a few days apart, considerable crew time can be saved by not having to repeat some of those preparatory steps.

Before closing the Soyuz-station hatches at 1:03 a.m. Saturday, Lopez-Alegria and Tyurin said farewell to the Expedition 15 crew, Commander Fyodor Yurchikhin, flight engineers Oleg Kotov and Williams. The new crew and Simonyi launched from the Baikonur Cosmodrome on April 7 and arrived at the station on April 9. Simonyi, a U.S. businessman, spent 12 days aboard the station under a contract with the Russian Federal Space Agency.

Lopez-Alegria and Tyurin will now spend several weeks in Star City, near Moscow, for debriefing and medical examinations. Their return to Earth was originally scheduled for Friday, April 20, but was delayed due to wet ground conditions, which could have precluded helicopter operations. The one-day change allowed for landing farther to the south.

Commander Fyodor Yurchikhin and flight engineers Oleg Kotov and Suni Williams began the week with a couple light duty days after the busy handover operations with the former crew. Expedition 14 Commander Michael Lopez-Alegria and Flight Engineer Mikhail Tyurin, accompanied by Spaceflight Participant Charles Simonyi, returned to Earth on Saturday and are at the Gagarin Cosmonaut Training Center in Star City, Russia, for several weeks of post mission debriefing and rehabilitation.

Additionally this week, the station crew participated in several drills to maintain medical and emergency proficiency skills. Yurchikhin and Kotov began sessions throughout the first two weeks of their residence to orient themselves with the station’s operating systems. Williams, who served as an Expedition 14 crew member, is aiding Expedition 15 with their station orientation.

On Thursday, Williams was told that she will return to Earth aboard space shuttle Atlantis, targeted for launch June 8. That shuttle mission, STS-117, will carry astronaut Clay Anderson to the station to join Expedition 15 in progress. Their rotation was originally planned for STS-118, targeted for launch Aug. 8.

NASA managers approved the crew rotation after a more detailed review determined it would not impact station operations or future shuttle mission objectives. Since an earlier crew rotation was possible, they decided it would be prudent to return Williams and deliver Anderson sooner rather than later. Upon Williams' return, she will have accumulated more time in space than any other woman.

Williams spent some of her off-duty time completing additional test runs for the Capillary Flow Experiment. Capillary flow is the key process used to move fluids in a microgravity environment. It uses the low-gravity environment provided by the station to understand the special dynamics of capillary flow and will aid in the design of fluid transport systems on future spacecraft.

On Monday, Williams set up and activated cameras for the Earth Knowledge Acquired by Middle School Students, or EarthKAM, education experiment. Middle school students program a digital camera on the station to photograph a variety of geographical targets from the unique vantage point of space. Undergraduate teams at the University of California at San Diego manage the images and post them on the Web for the public and participating classrooms around the world to view. Nearly 4,000 students from 66 schools in seven countries are participating in this run.

On Friday, Williams performed a series of test flights with small free-flying satellites for the Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) experiment. The experiment uses 8-inch diameter spherical satellites that fly within the station cabin. The satellites test the basics of formation flight and autonomous docking that could be used in future spacecraft. The battery-powered satellites use carbon dioxide to fuel 12 thrusters as they fly in the cabin.

In addition to general station orientation, Yurchikhin and Kotov also performed maintenance work on life support hardware in the Russian segment. The water separator in the air conditioning system was replaced. The separator dispositions condensate water and air collected from the station’s atmosphere that forms through the air conditioner, maintaining optimum humidity levels onboard.

Flight controllers and mission managers test fired the two main engines on the Zvezda Service Module in a Wednesday reboost, raising the station’s altitude. It was the first time the engines had been fired since initial arrival of Zvezda in 2000. Another reboost using ISS Progress 24 engines is scheduled for Saturday in order to finish placing the station in its correct position for the arrival of the ISS Progress 25 cargo vehicle May 15 and the space shuttle Atlantis in June.

To prepare for the new unpiloted cargo carrier's arrival, the currently docked Progress' engines were used to reboost the station Saturday. The move also increases the number of rendezvous opportunities for the STS-117 space shuttle mission targeted for next month. Expedition 15 Commander Fyodor Yurchikhin and flight engineers Oleg Kotov and Suni Williams also removed the docking mechanism from the Progress 24 for later use.

The week included work on a wide array of science experiments. Williams completed the fifth run of the Elastic Memory Composite Hinge experiment. The experiment studies the performance of a new hinge composite in space.

Williams also did a test run of a handheld device for rapid detection of biological and chemical substances on board the station. This study is meant to provide an early warning system to protect the health and safety of station crew members. Williams also completed annual re-certification of the Microgravity Science Glovebox and performed a checkout of the cardiac defibrillator.

Kotov did maintenance work in the Zarya module and tested the circuits of a temperature sensor on one of the batteries. He also conducted the periodic collection of air readings in the station with the Russian Real-Time Harmful Contaminant Gas Analyzer system.

Other hardware and maintenance tasks included the replacement of a Common Cabin Air Analyzer, sound level monitoring in the Russian Service Module and in the U.S. Destiny Laboratory, and charging U.S. spacesuits batteries.

Crew members wrapped up the week replacing a heat exchanger in the Zvezda Service Module. They also swapped out computers used in the U.S. lab racks.

The weekend will consist of mostly off-duty time with routine housekeeping, family conferences and a HAM radio session.

The ISS Progress 25 unpiloted cargo carrier is scheduled to dock with the station Tuesday at 12:10 a.m., bringing more than 1,050 pounds of propellant, almost 100 pounds of air, more than 925 pounds of water and 3,042 pounds of dry cargo -- a total of 5,125 pounds. NASA TV coverage of the docking will begin at 11:30 p.m. Monday.

The spacecraft will use the automated Kurs system to dock at the aft port of the Zvezda Service Module. Should human intervention be necessary, Expedition 15 Commander Fyodor Yurchikhin will be at the manual TORU docking system controls.

On Tuesday, Yurchikhin and flight engineers Suni Williams and Oleg Kotov tested communications between the station and the docked ISS Progress 24. On Wednesday, in recognition of the Russian holiday Victory Day, marking the end of World War II, the crew performed only necessary station activities.

On Thursday, Kotov worked with a breathing experiment, while Williams and Yurchikhin spent about three hours replacing a frayed steel rope on a gyroscope on the Treadmill Vibration Isolation System, or TVIS. The gyroscope is part of the system that keeps vibrations created by an exercising crew member from being transmitted to the rest of the station, where it could interfere with delicate experiments. Williams and Yurchikhin wrapped up the work on Friday.

Additionally on Thursday, flight controllers tested the failed Control Moment Gyroscope (CMG) 3. The test involved tilting the CMG in different directions at different speeds to determine what effect, if any, friction had on the movement. The 600-pound gyroscope itself, one of four that controls the station’s orientation in space, was not spun up. It will be replaced this summer during the STS-118 mission.

The ISS Progress 25 linked up to the aft port of the Zvezda Service Module at 12:10 a.m. CDT Tuesday as the station sailed 208 miles above the Earth off the northeast coast of Australia. Within minutes, hooks and latches engaged between the two spacecraft to form a tight seal. The hatch to the supply ship will be opened overnight to enable its cargo to be unloaded.

As the Progress approached for its docking, Expedition 15 Commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov stood by in Zvezda in case they needed to take over manual control of the linkup. The docking, under the guidance of the Kurs automatic rendezvous system, was smooth and uneventful. Flight Engineer Suni Williams monitored other station systems and photographed the Progress’ approach.

The Kurs proximity antenna was retracted earlier than usual, at a distance of about 148 meters. This enabled Russian flight controllers to confirm it was functioning properly, since it failed to retract during the Progress 23 docking last October. In February, the Expedition 14 crew conducted a spacewalk to fix the problem.

The unpiloted ship launched from the Baikonur Cosmodrome in Kazakhstan at 10:25 p.m. CDT Friday for its three-day journey to the station. The Progress delivered more than 1,050 pounds of propellant, almost 100 pounds of air, more than 925 pounds of water and 3,042 pounds of dry cargo.

The ISS Progress 25 docked to the aft port of the Zvezda service module at 12:10 a.m. CDT Tuesday. During the week, the crew began unloading the more than 5,000 pounds of cargo from the supply ship.

Commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov prepared for their May 30 and June 6 spacewalks by working on the Pirs airlock. The cosmonauts will wear Russian Orlan spacesuits to install orbital debris protection panels on Zvezda and replace experiments on the module's hull. Mission experts at NASA's Johnson Space Center, Houston, will provide an overview of the spacewalks in a news briefing at 1 p.m. Wednesday, May 23, on NASA Television.

The crew prepared for the arrival of space shuttle Atlantis, targeted to launch on June 8. Yurchikhin and Kotov practiced digital photography techniques for their role in the inspection of the shuttle's heat shield as it approaches the station for the joint STS-117 mission. Flight Engineer Suni Williams assembled a spacewalk tool and wrapped it in protective tape to be used if spacewalkers need help with retracting the P6 starboard solar array.

On Thursday, the crew called its colleagues working at National Oceanic and Atmospheric Administration's Aquarius undersea laboratory for the 12th NASA Extreme Environment Mission Operations (NEEMO). A flight surgeon, two astronauts and a Cincinnati doctor completed their 12-day mission Friday. That crew tested space medicine concepts, robotic telesurgery operations and moon-walking techniques. With its unique environment, Aquarius is an ideal training facility for future spaceflight. Williams was a member of the second NEEMO mission in May 2002.

On Friday, Williams completed an additional run of the Elastic Memory Composite Hinge experiment, which studies the performance of a new type of composite hinge to determine if it is suitable for use in space. The experiment uses elastic memory hinges to move an attached mass at one end. Materials tested in this experiment are stronger and lighter than current material used in space hinges and could be used in the design of future spacecraft.

Additionally, the crew spoke with C-SPAN, and Williams participated in interviews with two hometown Boston television stations.

On Saturday, Williams is expected to update software on the station support laptops.

Mission managers gave a "go" for a May 30 Russian spacewalk to install orbital debris protection panels on the Zvezda service module and a GPS antenna cable associated with Automated Transfer Vehicle navigation systems. This will be the 18th Russian spacewalk in support of station assembly and maintenance. The spacewalk is scheduled to begin at 1:20 p.m. CDT and last approximately six hours. NASA Television coverage will begin at 12:30 p.m.

First-time spacewalkers Yurchikhin and Kotov checked out the spacesuits and the Pirs airlock, prepared their tools, and closed the hatch to the Progress resupply vehicle docked to Pirs. Williams, who will help coordinate the spacewalk from inside the station, also prepared U.S. tools that will be used. During the spacewalk, the cosmonauts will retrieve a package, known as the "Christmas tree," which contains three bundles of debris panels. They were temporarily stowed on Pressurized Mating Adapter 3 during the STS-116 mission last December. After transferring the panels to Zvezda, Yurchikhin and Kotov will install the panels from one bundle. The others will be installed during their June 6 Russian spacewalk. Mission managers this week conducted a preliminary review of that spacewalk.

Williams this week installed updated software on the station's laptop computers, replaced the elastic "flex packs" in two Resistive Exercise Device canisters used to simulate weightlifting in the absence of gravity, and worked out on a stationary bicycle while medical experts on the ground measured her oxygen intake as part of a periodic fitness evaluation.

The crew members also prepared for the arrival of space shuttle Atlantis, targeted to launch on June 8. Yurchikhin and Kotov reviewed a recent digital photography practice session with shuttle imagery specialists, and Williams assembled a spacewalk tool to be used by shuttle astronauts who will retract the P6 starboard solar array. Along with filming the station video, Suni Williams also spoke with Clayton Anderson to help him prepare for his mission. It will begin officially when his specially-fitted Soyuz seat liner is transferred from Atlantis to the station during the STS-117 mission.

On Wednesday, Russian flight controllers executed an orbit adjustment burn, increasing the station's speed about one mile an hour and putting it in the proper orbit for Atlantis' arrival.

The Expedition 15 crew also participated in interviews with WBZ Radio, CBS Radio, ABC News and MSNBC.

Wearing Russian Orlan spacesuits, Commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov began their spacewalk from the Russian Pirs airlock at 2:05 p.m. CDT. The spacewalk was scheduled to begin at 1:20 p.m., but was delayed due to time required to troubleshoot a communications problem.

First, the cosmonauts moved to the Strela 2, one of the hand-operated, telescoping cranes at the base of Pirs. They attached an extension to the Strela boom, increasing its reach from 45 to 60 feet. With Kotov on the end of the extension, Yurchikhin extended the boom to a point over Pressurized Mating Adapter 3, or PMA-3, on the Unity connecting node.

Once in place, Yurchikhin, with guidance from Kotov, maneuvered the Strela end effector to a grapple fixture on an adapter stowage rack. The adapter is attached to PMA-3 and held three bundles of 17 debris panels. The assembly is dubbed the "Christmas Tree."

Once the Christmas Tree was attached to the Strela and released from PMA-3, Yurchikhin moved it and Kotov back to the small diameter of the Zvezda Module. Yurchikhin joined Kotov there, and together they secured it to a grapple fixture on Zvezda.

Next, they left the debris panel task and moved aft onto Zvezda's large conical section. There they rerouted a cable for a Global Positioning System to be used for future rendezvous operations with the European Automated Transfer Vehicle. The ATV is an unpiloted cargo carrier with almost twice the capacity of the Progress cargo craft. It is scheduled to make its first launch later this year.

Once that task was completed, the cosmonauts moved back to the Christmas Tree on the forward end of Zvezda, where they removed and opened one of the three bundles of debris panels. That bundle held five panels. The aluminum panels vary in size but are about an inch thick. They typically measure about 2 by 3 feet and weigh 15 to 20 pounds.

Yurchikhin and Kotov installed the five panels on Zvezda's forward section, the area between Zvezda's large and small diameters.

After the installation task, the spacewalkers moved back to Pirs and into the airlock. Hatch closure marking the end of the spacewalk was at 7:30 p.m.

This was the first spacewalk for Yurchikhin and Kotov. On their second, scheduled for June 6, the remaining 12 debris panels will be installed on Zvezda. Additionally, the cosmonauts also will install a section of an Ethernet cable on the Zarya module and a Russian experiment called Biorisk on Pirs.

The three bundles and their adapter were delivered by space shuttle Discovery during the STS-116 mission in December 2006 and attached to PMA-3 by spacewalkers Bob Curbeam and Sunita Williams. Williams, an Expedition 15 crew member, remained aboard the station as the intravehicular officer for Wednesday's spacewalk, advising and keeping the spacewalkers on schedule.

Six debris panels were previously installed during an August 2002 spacewalk by Expedition 5 Commander Valery Korzun and Flight Engineer Peggy Whitson. Those panels were delivered to the station by space shuttle Endeavour during the STS-111 mission in June 2002.

On Wednesday, Commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov stepped outside the station and installed five additional debris protection panels on the conical section of the Zvezda Service Module, the area between its large and small diameters. The aluminum debris protection panels are designed to shield the module from micro-meteoroids.

Also during the spacewalk, the cosmonauts relocated a Global Positioning System (GPS) antenna cable. The cosmonauts moved the GPS cable to assist the rendezvous and docking of the European Automated Transfer Vehicle later this year.

On June 6, Yurchikhin and Kotov are set to wear Russian spacesuits again and install 12 additional protection panels on Zvezda. They also will install a section of an Ethernet cable on the Zarya module and a Russian experiment called Biorisk on the Pirs Docking Compartment.

During the second spacewalk, Flight Engineer Suni Williams will remain aboard the station as the spacewalk choreographer, as she did this week, advising and keeping the spacewalkers on schedule.

Additionally this week, Williams packed science payload and personal items she will bring with her when she returns to Earth at the end of the upcoming STS-117 shuttle mission, scheduled for launch Friday, June 8 at 7:38 p.m. EDT.

Williams collected her fifth and final set of blood and urine samples for the Nutritional Status Assessment, which measures physiological changes in the human body during spaceflight. The samples are stored at minus 80 degrees Celsius in the Minus-Eighty Laboratory Freezer. The experiment will help researchers understand bone metabolism, oxidative damage, vitamin and mineral status and hormonal changes and how they relate to stress, bone and muscle metabolism. The results should provide a better understanding of what happens physiologically, and when it happens, to crew members on long-duration space missions.

Science activities on the International Space Station are coordinated by NASA payload teams at Johnson Space Center, Houston, and Marshall Space Flight Center, Huntsville, Ala. Marshall is the home of the Payload Operations Center linked to Mission Control in Houston.

Commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov opened the hatch on the Pirs docking compartment at 9:23 a.m. CDT to begin a spacewalk lasting 5 hours and 37 minutes. The cosmonauts installed sample containers on the Pirs module for a Russian experiment. The experiment, called Biorisk, looks at the effect of space on microorganisms.

Next, the spacewalkers strung a section of Ethernet cable on the exterior of the Zarya module. This completed the installation of a remote computer network that will enable commanding of the station's Russian segment from the U.S. segment, if necessary.

Yurchikhin and Kotov later moved to the primary task on the agenda, putting up 12 debris shield panels on the conical section of the Zvezda module. Five panels were installed last week, and six others were installed in 2002 to improve the module's protection from micrometeroid debris strikes. The aluminum panels each measure approximately 2 feet by 3 feet and are 1 inch thick.

Almost two and a half hours into the spacewalk, Russian controllers noticed unusual readings in Pirs and asked Yurchikhin to return to the module where he verified that the pressurized oxygen bottles were closed properly. Mission Control Moscow subsequently determined that a small amount of oxygen was flowing from a fluid umbilical that had not closed fully when it was disconnected from the spacesuit at the beginning of the spacewalk. Controllers closed the flow of oxygen to that umbilical to preserve the supply and restarted it during repressurization of Pirs after the spacewalk concluded.

The spacewalk ended at 3 p.m. when the hatch on Pirs was closed. Both cosmonauts now have 11 hours and 2 minutes experience in the Russian Orlan spacesuits. This was the 83rd spacewalk in support of station assembly and maintenance, the 55th conducted from the station, and the 22nd conducted out of Pirs.

During Wednesday's spacewalk, Flight Engineer Suni Williams remained aboard the station monitoring the spacewalk, exercising and conducting experiment activities. Earlier this week, she and her crewmates prepared the Quest airlock for the spacewalks planned during Atlantis' mission. They also packed her personal items and experiment results for her return to Earth aboard Atlantis. Early in the morning of June 16, Williams will exceed astronaut Shannon Lucid's mark for the longest spaceflight ever by a woman, 188 days and 4 hours.

Commander Rick Sturckow and the crew of shuttle Atlantis are in Florida preparing for their scheduled launch Friday, June 8, at 7:38 p.m. EDT. STS-117, due to dock to the station at 2:49 p.m. CDT Sunday, June 10, delivers a new set of solar array wings and a new station flight engineer, NASA astronaut Clay Anderson.

Atlantis' climb to orbit was flawless, carrying a seven-member crew. Aboard Atlantis are Commander Rick Sturckow, Pilot Lee Archambault, and mission specialists Patrick Forrester, Steven Swanson, John “Danny” Olivas, Jim Reilly and Clayton Anderson.

As Atlantis launched, the International Space Station flew 220 miles above the southern Indian Ocean, southwest of Australia. On the station awaiting Atlantis’ arrival are Expedition 15 Commander Fyodor Yurchikhin and flight engineers Oleg Kotov and Suni Williams. The station crew watched Atlantis’ launch on a video link sent by Mission Control.

Atlantis will link up with the station on Sunday to begin a joint mission that will increase the complex’s power generation capability. Using the shuttle and station robotic arms and conducting three spacewalks, the astronauts will install another set of giant solar array wings on the station and retract another array, preparing it for a future move.

Anderson and Williams will switch places within hours after Atlantis arrives. Anderson will begin a four-month stay on the station. Williams will journey home on Atlantis. Williams has been on the station since December and will return to Earth with a record for the longest female spaceflight in history.

After reaching orbit, Atlantis’ crew began procedures to open the shuttle’s payload bay doors and set up computers and other equipment. They also will power up the shuttle's robotic arm to check its operation. They will use the arm on Saturday to inspect Atlantis’ heat shield. On Sunday, Atlantis is scheduled to dock to the station at about 2:36 p.m. CDT. The shuttle crew begins a sleep period at 12:38 a.m. CDT Saturday and will awaken for their first full day in space at 8:38 a.m. CDT Saturday.

“Big Boy Toys” by Aaron Tippin, sounded on board the orbiter at 9:10 a.m. CDT, played for Commander Rick Sturckow. The crew was given an extra half hour to sleep this morning after being kept up late to finish downloading in-cabin video.

Today Pilot Lee Archambault and Mission Specialists Patrick Forrester and Steven Swanson will use the shuttle’s robotic arm to unberth the Orbiter Boom Sensor System (OBSS) for a detailed examination of Atlantis’ thermal protection system. Last night they took a closer look at an area of insulation blanket on the port orbital maneuvering system pod that was seen to be pulled away from adjacent thermal tiles during the robot arm checkout late Friday.

In parallel to today's inspection, Mission Specialists John “Danny” Olivas, Jim Reilly and Clayton Anderson will conduct a thorough checkout of the spacesuits to be worn during the three spacewalks planned for the docked operations at ISS and prepare them and other EVA hardware for transfer to the station.

Later, in preparation for docking, the crew will install a centerline camera, extend the outer ring of the Orbiter Docking System, and check out rendezvous tools. Sturckow is scheduled to fly Atlantis to a docking with ISS at 2:36 p.m. Sunday.

After hatch opening and welcome, Anderson will transfer his seat liner into the Soyuz spacecraft docked to the Zarya module and officially become a member of the station’s Expedition 15 crew, joining Commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov. Flight Engineer Suni Williams, who’s been in space since her launch last Dec. 9, joins the shuttle crew and will return to Earth with them.

Delivery of the S3/S4 Truss segment, which includes a new pair of giant solar arrays for power generation, begins shortly after docking tomorrow when the shuttle robot arm is used to lift it from the payload bay and hand it off to the station’s robotic manipulator. Installation of the truss segments occurs Monday in conjunction with the first spacewalk of the mission, conducted by Reilly and Olivas.

Pilot Lee Archambault and Mission Specialists Patrick Forrester and Steven Swanson used the shuttle’s robotic arm and an extension boom-mounted sensor system to inspect the heat shield on Atlantis’ wing leading edges and nose cap.

Last night the crew used the robotic arm to take a closer look at an area of insulation blanket on the port orbital maneuvering system pod that was seen to be pulled away from adjacent thermal tiles.

Prior to stowing the boom, the crew utilized the added reach to send Mission Control engineers up-close video of the displaced portion of the blanket. It will be analyzed along with the video from Friday night.

In preparation for Sunday’s docking, the crew extended the shuttle’s docking ring and checked out the rendezvous tools. The crew also installed a docking system centerline camera that will be used by Commander Rick Sturckow to align Atlantis with the station’s docking port.

While the robotic arm survey proceeded, Mission Specialists Danny Olivas, Jim Reilly and Clay Anderson checked and prepared the spacesuits they’ll wear during the three spacewalks on the fourth, sixth and eighth days of the mission. The major objective of the spacewalks is to install the station's newest component, the Starboard 3 and 4 (S3/S4) truss segments, unfurl a new set of solar arrays and fold and pack the right side of the Port 6 solar array.

On the space station, Expedition 15 Flight Engineer Suni Williams prepared the orbiting laboratory for Atlantis’ arrival tomorrow. She readied the digital cameras that will be used to take high-resolution photos of the shuttle's heat shield. Commander Fyodor Yurchikhin pressurized the docking port at the back end of the U.S. laboratory, Destiny.

Tomorrow as Atlantis makes its final approach to the station, Sturckow will take control of Atlantis and begin a slow back-flip rotation allowing Yurchikhin and Flight Engineer Oleg Kotov to photograph the shuttle’s heat shield. Williams will videotape the maneuver.

Once the back-flip is complete, Sturckow will maneuver Atlantis to docking, setting the stage for a week of joint operations between the two crews.

After hatch opening and welcome, Anderson will transfer his seat liner to the Soyuz spacecraft and officially become a member of the station’s Expedition 15 crew, joining Yurchikhin and Kotov. Williams, who’s been in space since her launch last Dec. 9, will return home with Atlantis’ crew.

Delivery of the S3/S4 Truss segment, which includes a new pair of giant solar arrays for power generation, begins shortly after docking tomorrow when the shuttle robotic arm is used to lift it from the payload bay and hand it off to the station’s robotic manipulator. Installation of the truss segments occurs Monday in conjunction with the first spacewalk of the mission, conducted by Reilly and Olivas.

Shuttle Commander Rick Sturckow was the first to enter the station followed soon after by the rest of the STS-117 crew.

The shuttle and space station docked at 2:36 p.m. CDT while traveling 220 miles above the northeast coast of Australia. Atlantis’ stay is planned for seven days of joint operations. Hatch opening between the two spacecraft occurred at 4:04 p.m. CDT.

Shortly after welcoming the shuttle crew, station Flight Engineer Oleg Kotov and shuttle Mission Specialist Clayton Anderson transferred Anderson’s customized Soyuz seat liner into the Russian spacecraft in place of that of Flight Engineer Suni Williams. The transfer at 7:55 p.m. CDT marked the official swap of Anderson for Williams as a station crewmember. Williams spent 181 days on the station and now is an Atlantis crewmember for the remainder of the mission. She has been in space for 183 days.

Prior to docking, Sturckow flew Atlantis through an orbital back flip while stationed about 600 feet below the space station. The maneuver was documented with long-range, high resolution cameras by Kotov and Expedition 15 Commander Fyodor Yurchikhin to document the shuttle’s heat shield.

Mid-morning, Mission Specialist John “Danny” Olivas used a 400 mm camera to get up-close shots of the port orbital maneuvering system. He shot those photos from the crew cabin aft window. During a check Friday night, an area of insulation blanket on the pod was seen to be pulled away from the adjacent thermal tiles. Those photos were downlinked for review by imagery analysts and mission managers.

Following docking, Pilot Lee Archambault and Mission Specialist Patrick Forrester used the shuttle's robotic arm to grapple the 17.8 ton S3/S4 truss, lift it from its berth in the payload bay, and maneuver it for handover to the station's Canadarm2. The S3/S4 truss is the heaviest station payload the shuttle has carried, to date.

After hatch opening, Expedition 15 Flight Engineer Suni Williams used the Canadarm2 to take the truss from the shuttle’s robotic arm. That task was completed at 7:28 p.m. CDT marking the completion of handover of the new truss segment to the station. The truss will remain grappled to the station’s arm overnight and installed Monday in conjunction with the first spacewalk by Mission Specialists Jim Reilly and Olivas.

The first of three planned spacewalks is scheduled to begin just before 2 p.m. CDT Monday and will be staged out of the station’s Quest airlock. Archambault, Kotov and Forrester will position the truss at the edge of the S1 truss using the station’s arm. Reilly and Olivas will connect power cables on the truss, release restraints for the Solar Array Blanket Boxes that hold the solar arrays and the Beta Gimbal Assemblies that serve as the structural link between the truss’ integrated electronics and the Solar Array Wings.

Reilly and Olivas will spend tonight "camped out" inside the Quest airlock, with air pressure lowered to help purge nitrogen from their bodies in preparation for the excursion.

The shuttle crew was awakened at 8:08 a.m. with “Riding the Sky,” written and performed by Johnson Space Center employees David Kelldorf and Brad Loveall for Mission Specialist Clayton Anderson. At the same time, a wakeup tone sounded on the station for Expedition 15 Commander Fyodor Yurchikhin and Flight Engineers Oleg Kotov and Suni Williams. Rendezvous operations for the shuttle crew to bring their ship together with the station begin at 9:38 a.m., and the terminal initiation engine firing, which puts Atlantis on course to close the final nine miles to the station, is set for 12 p.m.

At 1:37 p.m., at a distance of 600 feet below the station, Atlantis Commander Rick Sturckow will fly the rendezvous pitch maneuver. The maneuver is a back flip that will allow Yurchikhin and Kotov to photograph heat shield tiles on the shuttle’s underside. The images will be transmitted to the ground for analysis.

After the hatches open, Kotov and Anderson will transfer Anderson’s customized Soyuz seat liner into the Russian spacecraft in place of that of Williams. The transfer will make Anderson an official station crew member, and Williams a member of the shuttle crew. Delivery of the flight's primary payload, the bus-sized S3/S4 truss element with its new solar arrays, will start at about the same time. Using the shuttle robotic arm, Pilot Lee Archambault and Mission Specialist Patrick Forrester will grapple the 35,678-pound truss section, lift it from the payload bay and hand it off to the station's robotic arm, controlled by Williams.

The truss section will be installed Monday in conjunction with the first spacewalk of the flight, conducted by Mission Specialists Jim Reilly and John “Danny” Olivas. Reilly and Olivas will spend tonight "camped out" inside the Quest airlock, with air pressure lowered to help purge nitrogen from their bodies in preparation for the excursion.

The day began at 8:08 a.m. with the wakeup song “What a Wonderful World” by Louis Armstrong, played for Mission Specialist Danny Olivas. Olivas and Mission Specialist Jim Reilly completed a 6-hour, 15-minute spacewalk yesterday to complete the hardware installation of the S3/S4 Truss segments, which cleared the way for flight controllers to activate the new components.

Overnight ISS flight controllers commanded the initial minimal deployment of both solar array wings. Starting at 10:43 this morning shuttle Commander Rick Sturckow, Pilot Lee Archambault and Mission Specialists Pat Forrester, Steve Swanson, Suni Williams, Olivas and Reilly are scheduled to observe and assist in the complete deployment of those solar arrays to their full 115-foot length.

After lunch the shuttle crewmembers all get a couple of hours off duty before beginning preparations for a spacewalk by Forrester and Swanson tomorrow. They will assist with the initial stages of retraction of the starboard side solar array on the P6 module before removing the remaining launch restraints on the Solar Alpha Rotary Joint on S3/S4. That’s required to permit the SARJ to rotate so the new solar arrays can track the sun while the station orbits the Earth.

The shuttle crew and the Expedition 15 crewmembers, Commander Fyodor Yurchikhin and Flight Engineers Oleg Kotov and Clay Anderson, are awaiting word from the Mission Management Team on the plan for the mission’s third and fourth spacewalks. The MMT extended the mission by two days and added a fourth EVA to provide time to repair the raised thermal blanket on the Orbital Maneuvering System pod. A decision about whether that job will be done on EVA 3 or EVA 4 is expected today.

Mission Specialists Patrick Forrester and Steven Swanson, who camped out in the Quest airlock as part of their spacewalk preparations, and their crewmates were awakened at 8:08 a.m. CDT with “Questions 67 and 68” by Chicago, played for Pilot Lee Archambault.

While Mission Specialists Danny Olivas and Suni Williams help the spacewalkers get ready, the other Atlantis astronauts will be working the early steps of retraction of the 2B solar array wing, on the starboard side of the P6 Truss. Commander Rick Sturckow, Archambault and Mission Specialist Jim Reilly will send commands and monitor the retraction for any repeat of the difficulties with folding panels and sticking guide wires that were encountered on a similar retraction last December.

When Forrester and Swanson exit Quest at 1:03 p.m. they’ll move up the P6 Truss to monitor the retraction and to assist if required. Forrester, who will be in a foot restraint on the station’s robot arm, and Swanson will have specially-prepared tools to use to help the panels of photovoltaic cells fold properly.

After 45 minutes the spacewalkers will move on to the primary job of the day, preparing the Solar Alpha Rotary Joint between the S3 and S4 Truss segments for rotation. Forrester and Swanson will remove all remaining locks and restraints that held the joint safely in place during launch so that the joint is free to rotate, enabling the new solar array wings on S4 to track the sun as ISS orbits the Earth. The spacewalk is scheduled to end at 7:33 p.m.

Expedition 15 Commander Fyodor Yurchikhin and Flight Engineers Oleg Kotov and Clayton Anderson are scheduled to work on the transfer of supplies, and Anderson has time in his schedule for handover briefings and familiarization with his new home in orbit.

Mission Specialists Jim Reilly and Danny Olivas worked outside the station for 7 hours, 58 minutes and completed all their planned tasks. Olivas spent two hours stapling and pinning down a thermal blanket on Atlantis’ orbital maneuvering system pod. A 4-by-6-inch corner of the blanket peeled up during the shuttle’s launch last week.

Meanwhile, Reilly installed the hydrogen vent valve of a new oxygen generation system on the Destiny laboratory. The system will separate oxygen from water to provide breathing air, while dumping the remaining component – hydrogen – overboard.

When those tasks were completed, the two astronauts joined forces with their colleagues inside the shuttle and station and flight controllers in Houston to complete the delicate process of folding an older solar array so that it can be moved from its temporary location to its permanent home during a shuttle mission this fall.

Armed with lessons learned from last December’s shuttle mission when the other half of the array posed an identical challenge, the STS-117 mission team followed well-trained procedures to retract the array into its protective box. The retraction was completed and latches closed at 7:40 p.m. (7 hours, 15 minutes into the spacewalk). Reilly and Olivas provided hands-on assistance throughout the process.

The retraction sequence today required 28 commands, bringing the total for the retraction to 45.

Behind the scenes while the spacewalk was ongoing, Russian flight controllers were troubleshooting two Russian computers that provide backup attitude control and orbital altitude adjustments for the station’s control moment gyroscopes. Station commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov were able to get two of three lanes in both computers up and running after bypassing with external cabling what appeared to be a faulty power switch.

The computers are now being monitored for proper operation, awaiting additional data evaluation overnight when the station passes over Russian ground stations for detailed telemetry downlink. Each computer requires only one lane running to perform its duties.

One final spacewalk is planned for Sunday, when Mission Specialists Patrick Forrester and Steve Swanson will perform get-ahead tasks and finish preparing the Solar Alpha Rotary Joint for activation. Its function is to allow a new pair of solar arrays to track the Sun as the station circles the Earth.

The crew will spend part of Saturday getting ready for the last spacewalk and discuss the mission during the traditional news conference at 6:43 p.m.

During a news briefing from the Johnson Space Center Saturday afternoon, International Space Station Program Manager Michael Suffredini said, “We’re having a great day on orbit today.”

Yesterday, station Commander Fyodor Yurchikhin and Flight Engineer Oleg Kotov were able to reenable four of the six channels in the computer systems after bypassing what appears to be a faulty power switch with external cabling.

The Russian cosmonauts repeated that same modification today on the last two channels, which were originally suspected to have failed. They are continuing to checkout and troubleshoot the computers. Meanwhile, the forward plan is to keep the original four channels active and keep the other two channels in "stand by" mode.

Engineering teams also plan to test the Russian attitude control system as early as Sunday morning, in order to confirm that it is operating and working well in concert with the U.S. system. The specifics of the test are still being defined but once executed, the teams will determine when shuttle Atlantis will depart the station. Undocking is currently scheduled for Tuesday morning.

Onboard, the rest of the crew today focused on transfer activities as well as preparations for a fourth spacewalk tomorrow. The ten astronauts, including Expedition 15 Flight Engineer Clay Anderson, and shuttle Commander Rick Sturckow, Pilot Lee Archambault, and mission specialists Pat Forrester, Steven Swanson, Danny Olivas, Jim Reilly and Sunita Williams, also participated in a joint crew news conference.

During their crew sleep, Williams established a new record for the longest single spaceflight by a female. At 12:47 a.m. CDT, Williams surpassed the longstanding 188 day and 4 hour record set by astronaut Shannon Lucid at the Mir space station in 1996.

“I was just in the right place at the right time,” said Williams of the record. “It’s an honor to be here.”

The four spacewalkers spent time working on the U.S. spacesuits. Olivas and Reilly finished their post-spacewalk spacesuit reconfiguration tasks, while Forrester and Swanson configured their suits and tools for their second spacewalk. The final spacewalk of the flight is set to begin Sunday morning at 11:33 a.m. CDT.

The spacewalk will include a few wrap up tasks associated with the new truss segment, including installation of the Drive Lock Assembly 2, which with a second DLA, drives rotation of the S3/S4 Truss Solar Alpha Rotary Joint. The spacewalkers also will remove the final six launch restraints on the SARJ to enable its rotation and remove a keel pin and drag link from S3. They’ll also complete installation of a debris shield on the Destiny laboratory, install a computer network cable on Unity and remove a Global Positioning System antenna.

The spacewalk was the 87th in support of station assembly and maintenance, the 59th staged out of the station and the 36th out of the Quest airlock. Eleven spacewalks have been completed this year and 14 remain.

Forrester and Swanson began the spacewalk at 11:25 a.m. The two made quick work of retrieving a TV camera and its support structure from a stowage platform attached to Quest and installing it on the S/3 truss. They then verified the Drive Lock Assembly (DLA) 2 configuration and removed the last six Solar Alpha Rotary Joint (SARJ) launch restraints.

Inside, Mission Specialist Jim Reilly choreographed the outside work from the shuttle flight deck, shadowed by Expedition 15 Flight Engineer Oleg Kotov who will assume that role for the July 20 spacewalk by Clay Anderson and Fyodor Yurchikhin.

By 3:17 p.m., the two had cleared the path on S3 for the Mobile Base System by removing temporary rail stops and hardware that had secured the S3/S4 in the shuttle’s payload bay, thus completing the major tasks slated for the STS-117 mission. The spacewalkers then began some of the get-ahead tasks mission managers had hoped to complete.

The two spacewalkers also installed a computer network cable on the Unity node, opened the hydrogen vent valve on the Destiny laboratory that was installed on Friday’s spacewalk, and tethered two orbital debris shield panels on the station’s service module.

Tomorrow morning at approximately 9:28 a.m., Mission Control in Moscow plans to fire Russian attitude control thrusters. The thrusters have not been used since the Russian central computer and terminal computer went down earlier in the week. Those computers continue in stable operation.

Also tomorrow, astronauts onboard Atlantis will have a much deserved day off, bidding farewell to the Expedition 15 crew and closing the hatch between the two vehicles at 5:23 p.m. Atlantis will undock from the station at 9:42 a.m. CDT Tuesday, circling the orbiting complex once as it departs.

Today’s wakeup call came at 5:38 a.m. CDT with “Feelin’ Stronger Every Day” by Chicago, played for Pilot Lee Archambault. Expedition 15 Commander Fyodor Yurchikhin and Flight Engineers Oleg Kotov and Clayton Anderson were awakened on board ISS at the same time.

At 7:45 a.m. Archambault and Mission Specialist Patrick Forrester will begin powering on shuttle systems that have been turned off to conserve power during the docked phase of the flight, and at 8:28 Mission Specialists Steven Swanson and Jim Reilly will set up the centerline camera in the orbiter docking system.

At 9:42 a.m. the hooks and latches holding Atlantis and ISS together will release, and springs in the ODS will push the shuttle away. Archambault will fire shuttle thrusters to move 450 feet in front of the station before starting a full flyaround at 10:07 a.m. to get a good look at the reconfigured spacecraft.

At 11:25 a.m. another firing of Atlantis’ thrusters will begin the final separation of the two spacecraft for this flight. At a range of 46 miles Archambault, Forrester and Swanson will use the shuttle robot arm to lift the Orbiter Boom Sensor System from the starboard payload bay sill and conduct a late inspection of the thermal protection system on both wings and the orbiter’s nose cap.

Today and tomorrow Mission Specialist Suni Williams, in the 192nd day of her spaceflight, will be scheduled for more exercise to help prepare her for Thursday’s scheduled landing at the Kennedy Space Center, when her body will feel the pull of gravity for the first time since her launch last December.

The astronauts’ wakeup call came at 5:08 a.m. with “If I Had $1000000” by Barenaked Ladies, played for Mission Specialist Suni Williams, who’s in the 193rd day of her spaceflight.

The entire crew will be involved in routine deorbit preparations by 8:10 a.m., starting by stowing items in the crew cabin.

At 8:58 a.m. Commander Rick Sturckow, Pilot Lee Archambault, and Mission Specialist and Flight Engineer Steven Swanson will power up one of the auxiliary power units and conduct a checkout of the orbiter’s flight control surfaces, and at 10:08 a.m. begin a test firing of each of Atlantis’ reaction control system jets to ensure that both systems are ready for deorbit and landing. All seven crew members gather for a deorbit briefing at 11:28 a.m.

The shuttle astronauts take a break from packing at 2:03 p.m. to talk about the flight in interviews with NBC News, ABC News and CNN Live, then return to packing up for landing. The schedule calls for stowage of the Ku-band communications antenna at 5:58 p.m., just before Mission Specialist Jim Reilly and Williams set up a recumbent seat on the middeck for Williams to use during entry and landing.

The International Space Station’s crew is enjoying a day off duty as they shift their sleep cycle. Expedition 15 Commander Fyodor Yurchikhin and Flight Engineers Oleg Kotov and Clay Anderson are scheduled to go to sleep at 4:30 p.m. and get up at 1 a.m. tomorrow, returning to the normal station wakeup time.

This morning’s wakeup song, “Makin’ Good Time Coming Home” by john Arthur martinez, was played for Commander Rick Sturckow and Mission Specialist Jim Reilly.

Deorbit preparations get started at 7:50 a.m., and the crew should get the OK to close the payload bay doors at 9:05 a.m. If systems are good and the weather cooperates, Sturckow will conduct the deorbit burn at 11:50 a.m. to slow Atlantis enough to fall out of orbit and begin its descent toward a landing at the Kennedy Space Center’s Shuttle Landing Facility at 12:55 p.m.

A landing on that opportunity would conclude Mission Specialist Suni Williams’ record-setting flight at 193 days, 16 hours and 8 minutes, the longest single spaceflight ever by a female astronaut or cosmonaut.

There is another landing opportunity on the following orbit, which would put Atlantis on the ground at 2:30 p.m. There are two opportunities at both KSC and Edwards Air Force Base in California tomorrow in case weather prevents a landing today.

Aboard the International Space Station Expedition 15 Commander Fyodor Yurchikhin plans to carry out a troubleshooting procedure on the Russian segment’s central computer and terminal computer today. This procedure will not impact operation of the two channels of each computer that have been in control of Russian system operation since the restart on Friday.

At 8:05 a.m. Yurchikhin will activate the backup channels of both computers; on the next Russian ground site pass he’ll shut them down and remove the jumpers that bypassed a secondary power switch. On the ground site pass at 11:25 a.m. he’ll restart those channels to see if they run properly without the jumpers in place. In addition, Mission Control Moscow plans to restart the Elektron oxygen generation system at 11:40 a.m., putting it into operation for the first time since the computer failures last week.

Today’s troubleshooting procedure is designed to help Russian mission managers further assess their plans for repair of the computer systems, including possible replacement of components with new hardware to be flown on the next Progress supply ship due to arrive at ISS July 24.

The crew was waved off from its second and final landing attempt at 12:38 p.m. CDT when Mission Control sent word that rain showers were within 30 miles of the center accompanied by low clouds.

Shortly after the weather wave off, Entry Flight Director Norm Knight directed support for the backup landing site Friday at Edwards Air Force Base in California’s Mojave Desert. Knight intends to bring Atlantis home Friday to either Kennedy or Edwards.

The crew reopened Atlantis’ payload bay doors for its bonus day in space and executed a brief engine firing to adjust its orbit for the proper landing opportunities on Friday. The engine firing now enables the backup landing site at Edwards to be available, if required, ninety minutes earlier than previously planned when winds are expected to be calm.

There are multiple deorbit opportunities available for Atlantis’ astronauts tomorrow. The Florida weather forecast for Friday includes the possibility for more thundershowers. The Edwards forecast is favorable.

On Friday, landing preparations begin at 8:13 a.m. CDT, and the crew should close the payload bay doors at 9:36 a.m. If the weather cooperates, Commander Rick Sturckow and Pilot Lee Archambault will conduct the deorbit burn at 12:16 p.m. to allow Atlantis to free-fall out of orbit and begin its descent toward a landing at the Kennedy Space Center’s Shuttle Landing Facility at 1:18 p.m.

There is another landing opportunity on the following orbit, which would put Atlantis on the ground at Edwards at 2:49 p.m. or at Kennedy at 2:54 p.m. There are two additional opportunities at Edwards tomorrow.

Here are predicted times for tomorrow’s landing opportunities (all CDT):

ORBIT / SITE / DEORBIT BURN / LANDING
218 / Kennedy / 12:16 p.m. / 1:18 p.m.
219 / Edwards / 1:46 p.m / 2:49 p.m.
219 / Kennedy / 1:52 p.m. / 2:54 p.m.
220 / Edwards / 3:21 p.m. / 4:24 p.m.
221 / Edwards / 4:58 p.m. / 5:59 p.m.

Aboard the International Space Station, Expedition 15 Commander Fyodor Yurchikhin continued planned troubleshooting on the Russian segment’s central and terminal computers which malfunctioned during Atlantis’ visit to the complex. Yurchikhin disconnected jumper cables from one backup channel for each of the two computers that bypassed a secondary power switch and powered down the backup computers. He then attempted to restart those channels to see if they would run properly without the jumpers in place, but the procedure was not successful, confirming what flight controllers expected to see.

Russian specialists directed that the two channels remain off for the night without the jumper cables installed as they continue their systematic troubleshooting. Two other channels for each of the two computers continue to function flawlessly in support of Russian segment systems.

In addition, Russian flight controllers restarted the Elektron oxygen generation system, putting it into operation for the first time since the computer failures earlier this month.

Today’s troubleshooting procedure was designed to help Russian mission managers assess their plans for repair of the computer systems, including the likely replacement of components with new hardware to be flown on the next Progress supply ship due to arrive at the station July 24.

Atlantis landed in California June 22 after delivering a new starboard truss segment and a set of solar arrays to the station. Returning on the shuttle was Sunita Williams, who lived and worked aboard the orbiting complex for six months. Anderson succeeded Williams on the station and arrived with the Atlantis crew on June 10.

Anderson performed his first Saturday Science activity on June 23, showing younger television viewers how Newton's laws apply to sports activities, even in the microgravity of space.

On Monday, Anderson began work with a nutrition experiment. He collected blood and urine samples and began logging all of the food and drinks he consumed. The experiment tracks many vitamins and minerals essential for good health. It is the most comprehensive in-flight study to date of human physiological changes during long-duration spaceflight. Also, Anderson and Kotov did a medical emergency exercise, and Yurchikhin replaced one of three transmitters on the Russian Regul communications system.

The crew inspected the lights and power systems and performed a routine examination of the windows on the Russian Zvezda service module on Tuesday.

Wednesday was filled with science. Each crew member completed medical tests and periodic fitness evaluations, and worked with a variety of Russian experiments. Kotov spent about two hours using a multimeter to do resistance checks on the computer system in the Zvezda service module. The two major computer systems there continue to function well, with two of three "lanes," or data paths, of each system operating.

Anderson wore an acoustic dosimeter on Thursday to check station noise levels. He also worked with the Microgravity Science Glovebox in an unsuccessful effort to complete a leak check. Troubleshooting continues. Yurchikhin and Kotov spent more than two hours with the Russian Profilaktika experiment, which looks at measures to counteract the long-term effects of microgravity. Yurchikhin also worked with the Matryoshka radiation detection experiment and Kotov inventoried medical equipment.

On Friday, Anderson did a routine cleaning of spacesuit cooling loops. Yurchikhin and Kotov worked in the Russian segment, replacing current converter units in the Zarya module.

During the U.S. spacewalk, Yurchikhin and Anderson will jettison a support post for an exterior video camera and a 1,400-pound, refrigerator-sized tank that is no longer needed. The tank, known as the Early Ammonia Servicer, was designed to replenish ammonia to the temporary cooling system on the station in the event of a coolant leak.

The spacewalkers also will replace a faulty Remote Power Control Module to restore backup power to the station's Mobile Transporter railcar, which is needed for the STS-118 mission. Other tasks include cleaning the Unity node's nadir Common Berthing Mechanism seals for the relocation of Pressurized Mating Adapter-3. PMA-3 must be moved before the station's Harmony node arrives on shuttle mission STS-120, which is targeted for late October.

Yurchikhin and Kotov worked on the Russian computers during the past week, visually inspecting and photographing cables and connectors on the command processing unit. Although there is no conclusive evidence of what caused the problems during shuttle Atlantis’ visit last month, the inspections did yield some valuable information. The voltage readings on cables and connectors for the secondary power system appeared normal with the exception of one relay. Also, some corrosion was found on a second connector and a third was discolored. Troubleshooting continues.

In addition, the crew and flight controllers completed software upgrades this week for computers on the U.S. and Russian segments. The upgrades to the U.S. computers will allow the addition of the Harmony node, the European Space Agency's Columbus module and the Japanese Kibo Experiment Module during upcoming shuttle flights.

Plans are proceeding for the launch of the next Russian cargo ship, the ISS Progress 26, which will deliver to the station new computers, equipment, food, fuel, water and other supplies. Launch is scheduled for Aug. 2, with docking planned on Aug. 5.

Also this week, Anderson discussed the progress of his mission and life aboard the station during an educational in-flight event with students at the Clay Center for Arts and Sciences in Charleston, W.Va.

Additional Details: ISS EO-15: Station Crew Winds Up Ammonia Reservoir Jettison Spacewalk.

Additional Details: ISS EO-15: Progress Docks to Space Station.

Additional Details: ISS EO-15: PMA-3 Relocation.

Additional Details: ISS EO-15: Station Crew Moves Soyuz.

Additional Details: ISS EO-15: Space Station Crew Back on Earth.

This includes inspection and audio function checks of all comm panels (PA) in and between the Service Module (SM), FGB and Docking Compartment (DC1), VHF receiver tests, and an audit of headsets. (The "Voskhod-M" STTS enables telephone communications between the SM, FGB, DC1 and U.S. segment (USOS), and also with users on the ground over VHF channels selected by an operator at an SM comm panel, via STTS antennas on the SM's outside. There are six comm panels in the SM with pushbuttons for accessing any of three audio channels, plus an intercom channel. Other modes of the STTS include telegraphy (teletype), EVA voice, emergency alarms, Packet/Email, and TORU docking support. Last time done 4/15/07 by Yurchikhin & Kotov.)

Additional Details: ISS On-Orbit Status 11/30/07.

After wakeup and before breakfast, FE-2 Dan Tani again accessed the SLEEP experiment (Sleep-Wake Actigraphy & Light Exposure during Spaceflight) software for data logging and completing questionnaire entries in the experiment's laptop session file on the HRF-1 laptop for later downlink. (To monitor the crewmember's sleep/wake patterns and light exposure, Dan wears a special Actiwatch device which measures the light levels encountered by him as well as his patterns of sleep and activity throughout the Expedition. The log entries are done within 15 minutes of final awakening for seven consecutive days, as part of the crew's discretionary 'job jar' task list.)

Additional Details: ISS On-Orbit Status 12/14/07.

(Calf measurements (left leg only) are taken with the IZOG device, a custom-sewn fabric cuff that fits over the calf, using the knee and lower foot as fixed reference pints, to provide a rough index of deconditioning in zero-G and effectiveness of countermeasures. For determining body mass in zero-G, where things are weightless but not massless, the Russian IM "scales" measure the inertial forces that arise during the oscillatory motion of a mass driven by two helical metering springs with known spring constants. By measuring the time period of each oscillation of the unknown mass (the crewmember) and comparing it to the period of a known mass, the crewmember's mass is calculated by the computer and displayed.)

Additional Details: ISS On-Orbit Status 04/23/08.