Lawrence Credit - www.spacefacts.de

Personal: Female, Single. Born in Jacksonville, Florida, USA. US Navy US Navy

Astronaut Career

Astronaut Group: NASA Group 14 - 1992. Inactive Entered space service: 31 March 1992. Left space service: June 2006. Number of Flights: 4.00. Total Time: 51.16 days.

NAME: Wendy B. Lawrence (Commander, USN)

NASA Astronaut

PERSONAL DATA:

Born July 2, 1959, in Jacksonville, Florida. She enjoys running, rowing, triathlons and gardening. Her father, Vice Admiral William P. Lawrence (USN, retired), resides in Crownsville, Maryland. Her mother, Anne Haynes, resides in Alvadore, Oregon.

EDUCATION:

Graduated from Fort Hunt High School, Alexandria, Virginia, in 1977; received a bachelor of science degree in ocean engineering from U.S Naval Academy in 1981; a master of science degree in ocean engineering from Massachusetts Institute of Technology (MIT) and the Woods Hole Oceanographic Institution (WHOI) in 1988.

ORGANIZATIONS:

Phi Kappa Phi; Association of Naval Aviation; Women Military Aviators; Naval Helicopter Association.

SPECIAL HONORS:

Awarded the Defense Superior Service Medal, the NASA Space Flight Medal, the Navy Commendation Medal and the Navy Achievement Medal. Recipient of the National Navy League's Captain Winifred Collins Award for inspirational leadership (1986).

EXPERIENCE:

Lawrence graduated from the United States Naval Academy in 1981. A distinguished flight school graduate, she was designated as a naval aviator in July 1982. Lawrence has more than 1,500 hours flight time in six different types of helicopters and has made more than 800 shipboard landings. While stationed at Helicopter Combat Support Squadron SIX (HC-6), she was one of the first two female helicopter pilots to make a long deployment to the Indian Ocean as part of a carrier battle group. After completion of a master's degree program at MIT and WHOI in 1988, she was assigned to Helicopter Anti-Submarine Squadron Light THIRTY (HSL-30) as officer-in-charge of Detachment ALFA. In October 1990, Lawrence reported to the U.S. Naval Academy where she served as a physics instructor and the novice women's crew coach.

NASA EXPERIENCE:

Selected by NASA in March 1992, Lawrence reported to the Johnson Space Center in August 1992. She completed one year of training and is qualified for assignment as a mission specialist on future Space Shuttle missions. Her technical assignments within the Astronaut Office have included: flight software verification in the Shuttle Avionics Integration Laboratory (SAIL); Astronaut Office Assistant Training Officer. She flew on STS-67 in March 1995. She served as Director of Operations for NASA at the Gagarin Cosmonaut Training Center in Star City, Russia, with responsibility for the coordination and implementation of mission operations activities in the Moscow region for the joint U.S./Russian Shuttle/Mir program. She is currently in training for a 4-month stay on the Russian Space Station Mir in September 1997. She will launch aboard Space Shuttle Atlantis as part of the STS-86 crew.

Lawrence flew as the ascent/entry flight engineer and blue shift orbit pilot on STS-67 in March 1995. This mission was the second flight of the ASTRO observatory, a unique complement of three telescopes. During this record-setting 16-day mission, the crew conducted observations around the clock to study the far ultraviolet spectra of faint astronomical objects and the polarization of ultraviolet light coming from hot stars and distant galaxies. Mission duration was 399 hours and 9 minutes.

• 2 March 1995 Flight: STS-67. Flight Up: STS-67. Flight Back: STS-67. Flight Time: 16.63 days.

• 26 September 1997 Flight: STS-86. Flight Up: STS-86. Flight Back: STS-86. Flight Time: 10.81 days.

• 2 June 1998 Flight: STS-91. Flight Up: STS-91. Flight Back: STS-91. Flight Time: 9.83 days.

• 26 July 2005 Flight: STS-114. Flight Up: STS-114. Flight Back: STS-114. Flight Time: 13.90 days.

5 December 1992 - NASA Astronaut Training Group 14 selected.. The group was selected to provide pilot, engineer, and scientist astronauts for space shuttle flights.. Qualifications: Pilots: Bachelor's degree in engineering, biological science, physical science or mathematics. Advanced degree desirable. At least 1,000 flight-hours of pilot-in-command time. Flight test experience desirable. Excellent health. Vision minimum 20/50 uncorrected, correctable to 20/20 vision; maximum sitting blood pressure 140/90. Height between 163 and 193 cm.

Mission Specialists: Bachelor's degree in engineering, biological science, physical science or mathematics and minimum three years of related experience or an advanced degree. Vision minimum 20/150 uncorrected, correctable to 20/20. Maximum sitting blood pressure of 140/90. Height between 150 and 193 cm.. Four pilots and 15 mission specialists, nine civilians and ten military. Chosen from 2054 applicants, 87 of which screened in December 1991/January 1992. Five additional international astronauts.

Atlantis undocked from Mir at 17:28 GMT on October 3 and conducted a flyaround focused on the damaged Spektr Module to determine the location of the puncture in its hull. The Mir crew pumped air into the Spektr Module using a pressure regulator valve, and the Shuttle crew observed evidence that, as expected, the leak seemed to be located at the base of the damaged solar panel. Final separation of Atlantis from Mir took place around 20:28 GMT. After two landing attempts were waved off on October 5 due to heavy cloud cover, the crew fired the engines to deorbit at 20:47 GMT on October 6 and landed at Kennedy Space Center at 21:55.

Discovery lifted off at 9:39 a.m. central time today following a flawless countdown. Over the next 11 days, Discovery's seven person crew will demonstrate techniques for inspecting and protecting the Shuttle's thermal protection system and continue assembly of the International Space Station. Today's launch was the first for a Shuttle since the loss of Columbia and its crew in February 2003.

Discovery's climb to orbit was extensively documented through a system of new and upgraded ground-based cameras, radar systems and airborne cameras aboard high altitude aircraft. The imagery captured of Discovery's launch, and additional imagery from laser systems on a new boom extension for the Shuttle's robot arm as well as data from sensors embedded in the Shuttle's wings, will help mission managers determine the health of Discovery's thermal protection system over the next several days prior to its scheduled Aug. 7 landing.

Less than nine minutes after launch, Commander Eileen Collins, Pilot Jim Kelly and Mission Specialists Soichi Noguchi (Japanese Aerospace Exploration Agency), Steve Robinson, Andy Thomas, Wendy Lawrence and Charlie Camarda were in orbit and ready to open the payload bay doors and unstow their gear in the crew compartment. Moments after main engine cutoff, Noguchi and Thomas used handheld video and digital still cameras to document the external tank after it separated from the Shuttle. That imagery, and imagery from cameras in the Shuttle's umbilical well where the tank was connected, will also be downlinked for review by mission managers and engineers in the ongoing analysis of the tank's condition following ascent.

The crew plans to unberth and test Discovery's robot arm today before beginning an eight-hour sleep period at shortly before 4 p.m. CDT. The arm will be used today to collect imagery of the clearances between the Shuttle's Ku-band dish antenna that provides high data rate telemetry and television, and the end of a new 50-foot boom moored to the starboard sill of the spaceship that will be used tomorrow while grappled to the robot arm for a day-long inspection of the leading edges of Discovery's wings. That survey will help to insure that the wings did not incur any damage during launch.

At the time of launch, the International Space Station was 225 miles above the southern Indian Ocean west of Australia as Discovery began its chase for a docking at 6:18 a.m. CDT Thursday. Aboard the Station, Expedition 11 Commander Sergei Krikalev and Flight Engineer John Phillips were completing preparations for the arrival of the first Shuttle since Nov. 25, 2002.

When Discovery nears the Station early Thursday morning, Krikalev and Phillips will use digital cameras and high-powered 800MM and 400MM lenses to photograph Discovery's thermal protective tiles and key areas around its main and nose landing gear doors.

Housed in the Raffaello Multi-Purpose Logistics Module in Discovery's cargo bay is 15 tons of hardware and supplies that will be transferred to the Station after the Shuttle docks to the complex.

The astronauts will be awakened late tonight at 11:39 p.m. CDT to begin their first full day in orbit.

During Discovery's approach to the Station, Commander Eileen Collins will pause with the orbiter 600 feet below the Station and perform the first Rendezvous Pitch Maneuver. The motion will flip the Shuttle end over end at three quarters of a degree per second as the Station residents look on with digital cameras at the ready. The flip will provide Expedition 11 crewmembers, Sergei Krikalev and John Phillips, about 93 seconds to photograph the underside of Discovery and its heat-resistant tiles in detail.

The images from Station will be downlinked and added to the host of imagery and data obtained during Discovery's launch and Wednesday's robotic surveys that engineers are analyzing. Imagery released Wednesday showed a piece of foam being shed from the external tank during Discovery's ascent. Other photos showed a variety of smaller tile and foam dings that will be reviewed over the next several days. The crew will also downlink the video taken of the External Tank as it fell away from Discovery on Tuesday and video of the clearance between the Orbiter Boom Sensor System and the Ku-band antenna for review.

Once Discovery's crew has had a safety briefing from the Space Station crew, both crews get to work with more robotic operations to prepare for additional surveys. Discovery Pilot Jim Kelly, Mission Specialist Wendy Lawrence, with assistance from Phillips, will operate the Space Station robotic arm, Canadarm2, from inside the Destiny Lab. They will use the arm to lift the Orbiter Boom Sensor System from the payload bay sill and hand it over to the Shuttle arm. Mission Specialists Charlie Camarda and Andy Thomas will operate the Shuttle arm. Clearance restraints around the Shuttle's docking mechanism do not allow the Shuttle arm to grapple the boom on its own.

Spacewalkers Steve Robinson and Soichi Noguchi have two hours to prepare their tools and equipment for their three spacewalks. Among other things, the first spacewalk Saturday will test thermal protection system repair techniques. Two other spacewalks will repair and install critical hardware outside the Station.

Discovery's crew was awakened at 10:39 p.m. CDT by "It's a Wonderful World" by Louis Armstrong for Camarda. The Station crew was awakened at the same time by a tone onboard.

Commander Eileen Collins, Pilot Jim Kelly and Mission Specialists Soichi Noguchi, Steve Robinson, Andy Thomas, Wendy Lawrence and Charlie Camarda downlinked imagery taken of the External Tank after launch. The crew also photographed the Orbital Maneuvering System pod tile areas and sent down those files. Most of the heat shield survey, taking a close look at the reinforced carbon-carbon of Discovery's wings and nose was sent down live. The rest was sent down before the crew went to bed about 2:40 p.m. CDT.

The data was gathered by the new Orbiter Boom Sensor System (OBSS) laser-scanner. Kelly, Thomas and Camarda, with some help from other crewmembers, operated the Discovery's Canadarm and the 50-foot boom extension at its end for the survey. The OBSS was reberthed and Canadarm and its cameras were used to survey the tile area around the crew cabin.

Preparations for docking included a checkout of rendezvous tools, and the extension of the Orbiter Docking System ring that will make first contact with the Station. The approach will include the first Rendezvous Pitch Maneuver, a slow back flip by Discovery about 600 feet below the Station immediately before the 6:18 a.m. CDT docking.

The maneuver will allow Station Commander Sergei Krikalev and NASA Science Officer John Phillips to photograph Discovery's thermal protection system with 400mm and 800mm lenses. The images, taken through windows in the Station's Zvezda Service Module, are expected to be downlinked before hatches between Discovery and the Station are opened.

Today's imagery and laser scans will be compiled with other imagery taken during launch, and with data collected by wireless impact sensors in each panel of the wings' leading edges. Downlink of both preliminary and raw data from the sensors also was completed today. A team of about 200 people across the country are working to analyze imagery from the early part of Discovery's mission, the most photographed Shuttle flight in history.

The crew also completed the checkout of tools and two spacesuits to be used during the mission's three spacewalks. Two suits were also prepared for delivery to the Station for future Quest airlock spacewalks.

Commander Eileen Collins, Pilot Jim Kelly and Mission Specialists Soichi Noguchi, Steve Robinson, Andy Thomas, Wendy Lawrence and Charlie Camarda received a wakeup call at 11:39 p.m. CDT. The song played for the crew was music from the movie "Groundhog Day," which was for the entire crew to commemorate its first day out of quarantine.

For most of the day, Thomas, Camarda and Kelly will work together on Discovery's aft flight deck to inspect key components of the orbiter's heat shield. For the majority of the inspections the new Orbiter Boom Sensor System (OBSS) laser-scanner will be used. The Shuttle's robotic Canadarm will be used to maneuver the 50-foot boom extension after checkout of the system is completed.

In its debut performance, the boom will be used to methodically inspect the leading edges of Discovery's wings and the orbiter's nose cap to insure that they did not incur any damage during launch. The Laser Dynamic Range Imager (LDRI) on the boom will provide two-and three-dimensional imagery. The data will be downlinked to the ground for engineering evaluation.

After those surveys are complete the boom will be placed back on the starboard sill of the payload bay. The Shuttle robotic arm and its cameras will then be used to survey Discovery's crew cabin. Additionally, using handheld digital cameras the crew will photograph tiles on the Orbital Maneuvering System (OMS) pods and the orbiter's tail.

During Tuesday's ascent to orbit, the enhanced imaging capability gave flight controllers and mission managers views of the Shuttle Orbiter never seen before. With this heightened ability, engineers were able to see two so-called "debris events." A camera mounted on the external tank caught what appeared to be a small fragment of tile coming from Discovery's underside on or near the nose gear doors. A later image about the time of Solid Rocket Booster separation showed an unidentified piece departing from the tank and exiting away, apparently not striking the orbiter. The crew was notified of these observations and told that imaging experts would be analyzing the pictures.

Mission managers will review the information gathered yesterday and today, including imaging and sensor data, to help determine the health of Discovery's thermal protection system over the next four days before it is cleared for landing later in the flight. Data from the new wing leading edge sensors was downlinked overnight to Mission Control for assessment.

Flight Day Four has time reserved for additional surveys, if required, using the OBSS, either to complete parts of the survey that time would not allow today, or to supplement the survey with "stop-and-stare" scans of sites of potential interest.

Meanwhile, on the middeck, spacewalkers Noguchi and Robinson, assisted by Lawrence, will check out the airlock, spacesuits and tools they will begin using on Saturday. They will also prepare Shuttle systems for docking to the Space Station.

Today Collins will fire Discovery's thrusters twice to refine its approach to the Station. At about midnight, Discovery was trailing the Station by 6,516 statute miles. The two are scheduled to link up at 6:18 a.m. CDT Thursday.

Today the Space Station crew, Commander Sergei Krikalev and Flight Engineer and NASA Science Officer John Phillips will prepare the complex for Discovery's arrival. They will configure the digital cameras they will use during Discovery's approach, gathering additional imagery of the Shuttle's heat shield. They also will pressurize the Pressurized Mating Adapter 2 (PMA 2) that Discovery will dock to Thursday.

Discovery's crew was awakened at 10:39 p.m. CDT by the song "Vertigo" by U2 played for Pilot Jim Kelly. Capcom Shannon Lucid noted during the wakeup call that Kelly, whose nickname is "Vegas," was promoted to Colonel in the U.S. Air Force recently. The Station crew was awakened at 11:09 p.m. CDT by a tone onboard.

In this upcoming flight day, Mission Specialist Wendy Lawrence and Kelly will guide the Station's robot arm, Canadarm2, to pluck the Multi Purpose Logistics Module from Discovery's cargo bay and install it on the Station. The MPLM, called Raffaello, will be attached to the Station's Unity module. While the crew was asleep, the Station flight control team verified Unity's attach mechanism is ready for the addition.

Kelly and Station Flight Engineer John Phillips will walk Canadarm2 off of the Destiny lab beginning at 4:39 a.m. CDT., onto the Mobile Base System for situational awareness views from its cameras for the survey. Mission Specialist Charlie Camarda and Kelly will begin additional focused inspections of Discovery's heat shield using the Shuttle arm and Orbiter Boom Sensor System shortly after 6 a.m. Central time.

Once the MPLM is in place, Mission Specialist Wendy Lawrence and Station Commander Sergei Krikalev will begin activation of the module about 7:49 a.m. CDT and will enter about two hours later, at 9:49 a.m. CDT.

Commander Eileen Collins and Mission Specialist Andy Thomas will participate in interviews with the Associated Press Radio Network, National Public Radio and the CBS Radio Network at 5:19 a.m. CDT.

Additional preparations for Saturday's first spacewalk of the mission by Soichi Noguchi and Steve Robinson will continue during the day with a review of EVA procedures and a checkout of a small rescue device known as SAFER, for Simplified Aid For EVA Rescue, designed to allow an astronaut outside a spacecraft to return safety if they become untethered and separated from the spacecraft. Hatches between Discovery and Station will be closed as the Shuttle's cabin pressure is reduced to 10.2 psi for the pre-breathe period, during which spacewalkers will become gradually acclimated to the lower pressures of spacesuits.

The crews of Discovery and the Station are scheduled to go to sleep about 2:39 p.m. CDT.

Discovery Commander Eileen Collins and Pilot Jim Kelly flew Discovery through the rendezvous pitch maneuver about 600 feet below the Station about an hour before docking. The photos taken by Station Commander Sergei Krikalev and NASA Science Officer John Phillips were transmitted to the ground before docking occurred at 6:18 a.m. CDT.

Discovery, the first Shuttle to visit the Station since late 2002, and the orbiting laboratory linked up over the southern Pacific Ocean west of the South American coast. The photos from Discovery's approach and many others from ground, aircraft and Shuttle and Station cameras are being carefully analyzed by a team of about 200 people to ensure Discovery's thermal protection system is safe for re-entry.

After the initial hugs and handshakes Krikalev gave a safety briefing for the new arrivals, Collins, Kelly and Mission Specialists Soichi Noguchi of the Japanese Aerospace Exploration Agency, Steve Robinson, Andy Thomas, Wendy Lawrence and Charlie Camarda.

Among early tasks for the joint crews was preparation for additional robotic arm surveys of the orbiter. Tomorrow's schedule includes time for additional focused inspections.

Kelly and Lawrence, with help from Phillips, used the Station's Canadarm2 to lift the Orbiter Boom Sensor System from Discovery and hand it to the Shuttle arm. Camarda and Thomas steered the Shuttle arm, which cannot grasp the boom directly with the Station in the way.

Robinson and Noguchi, who will make three spacewalks at the Station, spent about an hour and a half getting equipment ready.

Tasks on the spacewalks Saturday, Monday and Tuesday include testing thermal protection system repair techniques, replacement of one of four Station control gyros (which control the orbiting laboratory's orientation in space) and restoration of power to another. The spacewalkers also will install an external spare parts carrier on the outside of the Station's Quest airlock.

Crewmembers were briefed on the loss of a piece of foam insulation from the external tank shortly after launch. The foam, seen by a camera on the tank making the first Shuttle flight in that position, did not appear to touch the orbiter. Shuttle managers determined that the cause of the foam loss needs to be understood and the problem fixed before Shuttle launches can resume.

Discovery and Station crewmembers began scheduled sleep periods about 2:40 p.m. CDT.

Discovery's crew was awakened at 10:43 p.m. CDT by the Japanese song "Sanpo," sung by a group of children, including Noguchi's. The Station crew was awakened at 11:09 p.m. CDT by a tone onboard.

Noguchi and Robinson's spacewalk preparations, including a pure oxygen pre-breathe and exercise procedure, will get underway at 12:39 a.m. CDT, with Intravehicular (IV) crewmember Andy Thomas' assistance. The procedure will purge the spacewalkers' blood of nitrogen to prevent the painful symptoms of "the bends" while wearing their low-pressure spacesuits.

About the same time, Station Commander Sergei Krikalev and NASA Science Officer John Phillips will maneuver the Station's robotic arm into a position to support the spacewalk. At 12:55 a.m. CDT the pair will "walk off" Canadarm2 from the Mobile Base System to the Destiny lab and change its operating base. The arm will be operated by Shuttle Pilot Jim Kelly and Mission Specialist Wendy Lawrence during the spacewalk to help install the External Stowage Platform-2 (ESP-2) Attachment Device (ESPAD) onto Station.

After the excursion begins and the spacewalkers have completed about an hour of tool setup, the first task is to test thermal protection system repair techniques. Noguchi and Robinson will work side-by-side in Discovery's cargo bay at a pallet of purposely damaged orbiter heat shield samples. They will practice the Emittance Wash Applicator (EWA) repair of tile samples and the NOAX (Non-Oxide Adhesive eXperimental) repair of Reinforced Carbon-Carbon samples.

After the testing is complete, the pair will move on to their Station assembly tasks. They will install the ESPAD and associated cabling on the Station's Quest airlock so that the ESP-2 can be installed on top during the third spacewalk.

Next, Noguchi will replace a Global Positioning System (GPS) antenna on the Station's truss structure. At the same time, Robinson will retrieve tools for the second spacewalk's Control Moment Gyroscope-1 replacement and swap connectors to restore power to the Station's CMG-2. The last job will be for both crewmembers to route cabling for the ESP-2 installation on the third spacewalk.

Once the spacewalk has begun and the Station's airlock's hatch is opened as an emergency door, the hatches between Discovery and Station will be re-opened so the crews can work together to support the spacewalk and continue transfer work. Commander Eileen Collins, Mission Specialist Charlie Camarda, Krikalev, Phillips and Lawrence will continue transferring water and other equipment to the Station from Discovery and the Raffaello cargo module. The hatches will be closed before the end of the spacewalk again to allow the crew to re-enter the Shuttle airlock. Once the crew is inside and the Shuttle's airlock is repressurized, the hatches will be re-opened.

At 8:09 a.m. CDT, Kelly and Camarda are scheduled to perform additional surveys of Discovery's wing leading edge Reinforced Carbon-Carbon with the Shuttle arm and Orbiter Boom Sensor System. They will use the sensors to focus on seven areas of interest along the port wing.

The crews of Discovery and the Station are scheduled to go to sleep about 2:39 p.m. CDT.

Engineering analysis continues on the imagery collected so far, but no apparently serious problems with Discovery's heat shield have been noted. Mission Manager Wayne Hale said in a Friday afternoon press conference, "We're feeling very good about Discovery coming home."

It was a very busy day for the crewmembers, Discovery Commander Eileen Collins, Pilot Jim Kelly and Mission Specialists Soichi Noguchi (Japan Aerospace Exploration Agency), Steve Robinson, Andy Thomas, Wendy Lawrence and Charlie Camarda, and the Station's commander Sergei Krikalev and NASA Science Officer John Phillips.

Raffaello was unberthed from Discovery's cargo bay just before 1 a.m. CDT Friday by the Station's Canadarm2, operated by Lawrence and Kelly and attached to the Station's Unity Node. Hatches were opened a little after 10 a.m. Transfer of its cargo to the Station began soon thereafter. Crewmembers had begun transferring Station equipment and supplies from the Shuttle's mid-deck earlier.

Preparations for the targeted survey of Discovery's thermal protection system began with Kelly and Phillips attaching the end of Canadarm2 to the Station's Mobile Base System. They subsequently detached the other end from the Destiny Laboratory so the arm could be used in its new position to provide situational awareness views of the survey with its cameras.

Camarda and Kelly used the Shuttle's robot arm and the 50-foot Orbiter Boom Sensor System to look at six areas to determine if they had sustained damage. Mission managers said there was no indication of serious damage in early looks at downlink from that survey and earlier images. Detailed analysis of images starting with Discovery's Tuesday launch and continuing through Friday's survey was continuing.

Noguchi and Robinson will make three spacewalks at the Station, and today they continued preparations for the first, scheduled to begin at 3:44 a.m. Saturday. They reviewed spacewalk procedures and checked out the SAFER, or Simplified Aid For EVA Rescue, a rescue device to help a spacewalker who goes adrift return to the spacecraft.

Hatches between Discovery and Station were closed as the Shuttle's cabin pressure was reduced to 10.2 psi for the pre-breathe period, during which spacewalkers became gradually acclimated to the lower pressures of space suits to avoid formation of nitrogen bubbles in the blood. The excess air from the Shuttle was transferred to the Station to replenish its atmosphere.

Collins and Thomas talked with reporters from the Associated Press Radio Network, National Public Radio and the CBS Radio Network beginning a little after 5:20 a.m. CDT.

Mission managers today also decided to extend Discovery's mission by one day to spend more time docked with the International Space Station. Astronauts are busy transferring more water and supplies to the ISS in case the next Shuttle mission is delayed. An additional 10 gallons of water was transferred along with a pair of laptop computers and other supplies.

Astronauts Steve Robinson and Soichi Noguchi of the Japan Aerospace Exploration Agency wrapped up a successful 6-hour, 50-minute spacewalk at 11:36 a.m. Saturday, completing a demonstration of Shuttle thermal protection repair techniques and enhancements to the Station's attitude control system.

For the repair demonstration, they worked with tiles and reinforced carbon-carbon intentionally damaged on the ground and brought into space in Discovery's cargo bay. They tested an Emittance Wash Applicator for tile repair and Non-Oxide Adhesive eXperimental (NOAX) for the reinforced carbon-carbon samples.

Helped by Astronaut Andy Thomas, who served as a coach and monitor from Shuttle's aft flight deck, they also installed a base and cabling for a stowage platform and rerouted power to Control Moment Gyroscope-2 (CMG-2), one of four 600-pound gyroscopes that control the orientation of the Station in orbit.

CMG-2 has been healthy, but a faulty circuit breaker interrupted its power supply in March. Since that time the Station had operated successfully on two CMGs. About 9:20 a.m. Mission Control told the astronauts they saw power again flowing to CMG-2. Plans call for it to be spun up to its 6,600 rpm operating speed over the next several hours and subsequently put back into the attitude control mix. Another gyroscope, CMG-1 which failed in 2002, is to be replaced Monday on the second of three spacewalks. They also replaced a faulty global positioning system antenna on the Station.

The spacewalk began at 4:46 a.m., after deliberate preparations delayed the planned start. The Station crew, Commander Sergei Krikalev and NASA Science Officer John Phillips, had moved the orbiting laboratory's Canadarm2 into position to help Noguchi and Robinson's work. Discovery Pilot Jim Kelly and Mission Specialist Wendy Lawrence ran the arm, helping the spacewalkers install the stowage platform base.

The spacewalkers had time for some get-ahead tasks near the end of their spacewalk, bringing in two experiments that exposed a variety of materials samples to the harsh vacuum and extreme temperatures of space. Noguchi also photographed some insulation on the port side of Discovery's cabin.

Hatches between the Station and Discovery had been closed in preparation for the spacewalk. Once hatches were reopened, remaining crewmembers, Eileen Collins and Mission Specialist Charlie Camarda, went about other tasks, including transfer of cargo from the Shuttle to the Station.

Among those tasks was another survey of parts of Discovery's thermal protection system by the Shuttle's robotic arm and the Orbiter Boom Sensor System. Kelly and Camarda, operating the arm, focused their attention on seven areas of interest along the leading edge of Discovery's port wing.

After analysis of many images taken of Discovery during and after its launch, including information from previous surveys like the one done Saturday, no damage that would threaten a safe landing by the Shuttle has been identified. About 25 dings have been seen on Discovery, compared to a mission average of 145 in missions before Columbia's loss.

Two additional collapsible water containers holding more than 10 gallons each are expected to be added to the cargo transfer list before the Shuttle leaves, bringing to 17 the number that will be left behind, a substantial increase in the amount of available water.

ISS Program Manager Bill Gerstenmaier said in a Saturday news conference that the program was very happy to have the additional supplies and that the station's consumables status had improved considerably with Discovery's visit.

Mission Manager Wayne Hale said Saturday that the added mission day will be added to the crew's schedule after the third spacewalk day.

Hale also noted Saturday that Discovery's protective tiles and thermal blankets passed review and are cleared for entry. Analysis continues on the reinforced carbon-carbon areas and two protruding gap fillers.

Also Sunday, astronauts will make preparations for the second spacewalk of the mission scheduled for Monday. Discovery's cabin pressure will be reduced to 10.2 psi to prepare Mission Specialists Stephen Robinson and Soichi Noguchi of the Japan Aerospace Exploration Agency for their work outside the spacecraft.

Space Shuttle and Space Station crewmembers will participate in two separate in-flight interviews. Shuttle Commander Eileen Collins, Pilot Jim Kelly and Mission Specialist Charlie Camarda will talk to reporters with ABC News, Fox News and NBC's "Meet the Press" at 5:49 a.m. CDT. Collins, Robinson, Noguchi and NASA ISS Science Officer John Phillips will speak with CBS News, CNN and Discovery Channel reporters at 7:39 a.m.

Discovery's crew was awakened at 11:11 p.m. CDT by the song "I'm Goin' Up," by Claire Lynch for Mission Specialist Wendy Lawrence. The Space Station crew was awakened about the same time by a tone onboard.

The crews of Discovery and the Space Station are scheduled to go to sleep about 2:09 p.m. CDT.

The pair will have about an hour of setup time after exiting Space Shuttle Discovery's airlock and positioning themselves at the Station's Z1 truss segment. Mission Control will shut down the failed Control Moment Gyroscope 1 (CMG1) about 4:09 a.m. CDT and then give a go for the spacewalkers to start removing it about 15 minutes later. Mission Specialist Andy Thomas will choreograph the activities from inside and relay information from Mission Control to the spacewalkers.

Noguchi will take the failed CMG to Discovery's cargo bay while riding the Station's robot arm. He will temporarily store it until the new gyro is removed and the old one can be placed in its carrier with Robinson's help. Noguchi will then carry the new gyro at the end of the robot arm to the Z1 truss. Discovery Pilot Jim Kelly and Mission Specialist Wendy Lawrence will operate Canadarm2 for the spacewalk.

After it is installed, Station flight controllers will power up and check out the new gyroscope about 8:14 a.m. CDT and start it up at 8:39 a.m. CDT. With CMG1 replaced, the full complement of four gyroscopes will be available for Station operations. CMG2 has operated well since the spacewalkers restored power to it in the first spacewalk Saturday.

Inside the orbiting complex, Station residents Sergei Krikalev and John Phillips and Discovery Commander Eileen Collins and Mission Specialist Charlie Camarda will continue transferring equipment and supplies between the two vehicles. Collins will focus on collecting byproduct water from Discovery's power generation system for transfer to Station.

Discovery's crew was awakened at 10:09 p.m. CDT by the song "Walk of Life," by Dire Straits for Robinson. The Space Station crew was awakened at 10:39 p.m. CDT by a tone onboard.

The crews of Discovery and the Space Station are scheduled to go to sleep about 2:09 p.m. CDT.

Noguchi, of the Japan Aerospace Exploration Agency, and Robinson, along with remaining Discovery crewmembers, Commander Eileen Collins, Pilot Jim Kelly and Mission Specialists Andy Thomas, Wendy Lawrence and Charlie Camarda, worked on moving items from the Shuttle to the Station. They were helped by International Space Station Commander Sergei Krikalev and NASA ISS Science Officer John Phillips.

Approximately six tons of hardware and equipment, including the 600-pound Control Moment Gyroscope (CMG) that will be installed on the exterior of the Station during Monday's spacewalk, will be moved from Discovery to the Station. Just over three and a half tons of material, including the replaced CMG, will return to Earth aboard Discovery.

Noguchi, Robinson and Thomas prepared for Monday's spacewalk by setting up some of the tools they will use to install the new CMG outside the Station. Thomas will once again serve as coach and monitor inside Discovery during the spacewalk. Working from aboard the Station, Kelly and Lawrence will use the Station's Canadarm2 to maneuver Noguchi between the two spacecraft during the removal and installation of the CMGs. In preparation for that activity, Kelly and Lawrence "walked" the Station arm into position on the Destiny Laboratory. All nine crewmembers also participated in a review of spacewalk activities near the end of their working day.

Collins, Kelly and Camarda talked with reporters from ABC News, Fox News and NBC at about 5:40 a.m. CDT. About 7:25 a.m. Collins, Noguchi, Robinson and Phillips talked with CBS News, CNN and Discovery Channel.

Engineers and mission managers continued to analyze information about Discovery's thermal protection system. They have cleared the orbiter's tiles and a decision was expected later today on the analysis of reinforced carbon-carbon protection for the nose cone and wing leading edges.

Mission managers continue to look at two gap-filler areas. These coated-fiber gap fillers are used to keep hot gas from flowing into gaps in the thermal protection, in these two cases, in tile-protected areas. Two gap fillers are protruding, and teams are working to determine whether any action is required by the crew.

Discovery's crew was awakened at 10:09 p.m. CDT by the song "Big Rock Candy Mountain," by Harry McClintock for Mission Specialist Andy Thomas. The Space Station crew was awakened at 10:39 p.m. CDT by a tone onboard.

Mission managers decided to remove two gap fillers that are protruding from areas between heat-shielding tile on the Shuttle's underbelly. It is a relatively simple process that can be accomplished as an add-on task to Wednesday's spacewalk.

During the spacewalk, Mission Specialist Steve Robinson will venture under the Space Shuttle on the tip of the Station's robotic arm, locate the protrusions and gently tug until they come out. If that does not work, Robinson will have tools to cut off the protrusions.

Robinson, fellow spacewalker Soichi Noguchi and spacewalk choreographer Andy Thomas will spend time Tuesday assembling a hack saw for the removal job and reviewing the new procedure.

All of the Shuttle and Station crewmembers will participate in a news conference at 4:59 a.m. CDT. Krikalev and Phillips will be interviewed by reporters at Mission Control Moscow at 5:45 a.m. CDT. It will be replayed with translation on NASA TV at 6:15 a.m. CDT.

At 6:39 a.m. CDT Discovery Pilot Jim Kelly and Mission Specialist Wendy Lawrence will grapple the External Stowage Platform-2 (ESP-2) and unberth it from Discovery's payload bay. This is in preparation for the hardware's installation at the beginning of Wednesday's spacewalk. Preparing the ESP-2 Tuesday provides the extra time for the tile gap filler task during the spacewalk.

Before the Shuttle and Station crews go to sleep, the hatch will be closed between the two vehicles and the Shuttle's cabin will be depressurized to 10.2 psi on the eve of the last spacewalk. The crews are scheduled to go to sleep about 2:09 p.m. CDT.

Spacewalk experts presented a plan to mission managers in Monday's Mission Management Team meeting. Space Shuttle Deputy Program Manager Wayne Hale, in a Monday afternoon briefing, said that with the level of uncertainty involved in flying a reentry with protruding gap fillers it was an easy decision to move ahead with a well-understood process for removing them.

Early Monday, Robinson and Noguchi replaced a 600-pound gyroscope on the International Space Station, leaving the orbiting laboratory with a complete functional set of four. Called control moment gyros, or CMGs, the 600-pound devices maintain the Station's orientation in space, the way it is pointed and which part faces the Earth as it orbits the planet.

The 7-hour, 14-minute spacewalk began at 3:42 a.m CDT. After leaving the Discovery airlock, Noguchi and Robinson made their way hand-over-hand to the Station's Z1 Truss, atop the Unity Node where the four CMGs are housed. There Noguchi, of the Japan Aerospace Exploration Agency, attached himself to a foot platform at the end of the Station's Canadarm2, operated by Discovery Pilot Jim Kelly and Mission Specialist Wendy Lawrence.

Coached and monitored by Mission Specialist Andy Thomas on Discovery's aft flight deck, the spacewalkers removed CMG-1, which had failed in June 2002. Noguchi held it as the arm took him back to the rear of Discovery's cargo bay, where he and Robinson, who had moved back on his own, temporarily stowed it. They then took the new CMG from its cradle, and Noguchi held it while the arm moved him back to the Z1 Truss.

There he and Robinson installed it in the space vacated by the failed device. That completed, flight controllers began the hours-long process of checking out the new CMG-1 and spinning it up to its 6,600 rpm operating speed.

On the mission's first spacewalk on Saturday, Noguchi and Robinson had rerouted CMG-2's power supply. A faulty circuit breaker had interrupted that power supply in March. The two spacewalks leave the Station with four functioning CMG's. The station can hold its attitude on two, but more will be required as it grows.

Discovery Commander Eileen Collins and Mission Specialist Charlie Camarda, along with the Station's Commander Sergei Krikalev and NASA Science Officer John Phillips, worked Monday on transferring cargo to and from the Station. The 3,768 pounds of up-bound cargo from the Multi-Purpose Logistics Module Raffaello, which came to the Station in Discovery's cargo bay and then was attached to a docking port on the Unity Node, has been transferred to the Station. Work continues to stow it and to reload Raffaello with equipment and trash to be returned to Earth.

The crew began the day waking up at 10:09 p.m. CDT to "Where My Heart Will Take Me," the theme song from Star Trek: Enterprise. The song, composed by Dennis McCarthy, was selected for the crew as a surprise dedication from the Deputy Shuttle Program Manager Wayne Hale. The International Space Station Expedition 11 crew of Sergei Krikalev and John Phillips woke 30 minutes later.

Mission Specialists Steve Robinson and Soichi Noguchi are scheduled to begin their third spacewalk at 3:14 a.m. CDT as they exit out of the Space Shuttle airlock. The two will be assisted by Andy Thomas, serving as the intravehicular officer overseeing the spacewalk from inside, as well as Pilot Jim Kelly and Mission Specialists Wendy Lawrence and Charlie Camarda who will be supporting various robotic arm activities throughout the day.

The spacewalk is scheduled to last about 7 hours. The first task entails Kelly and Lawrence maneuvering the External Stowage Platform-2 (ESP-2), via the Station's robotic arm, which they pulled from Discovery's payload bay earlier today, onto the Station. As the ESP-2 reaches its final position, Robinson and Noguchi will guide the structure and secure it into place. With that task complete, Lawrence and Kelly will conduct a "walk off" maneuver of the Station robotic arm, by attaching the "free" end to the Mobile Base System and releasing the other end from the Destiny Laboratory module to where it will be needed as a platform for Robinson later in the EVA.

The two spacewalkers will move on to individual tasks, with Noguchi installing the Materials International Space Station Experiment-5 (MISSE-5), a materials experiment that will study the degradation of solar cell samples in the space environment. He'll then remove the Rotary Joint Motor Controller from the Space Station truss before proceeding to a support position to assist Robinson in his final tasks.

Meanwhile, Kelly will work with Camarda, using the Orbiter Boom Sensor System to inspect repair demonstration tiles inside the Shuttle's payload bay. Later, Camarda will also work with Krikalev and Phillips to continue stowing supplies and equipment inside Discovery and the Station. Discovery Commander Eileen Collins will monitor and supervise all the activities.

Robinson, now attached to the Station robotic arm, will attempt to repair two tile gap filler protrusions located on the underside of Discovery. He will first try to gently pull out the protruding material, and if need be, remove by trimming with a hacksaw.

Gap fillers are used in areas to restrict the flow of hot gas into the gaps between Thermal Protection System components. They consist of a layer of coated Nextel fabric and are normally about 0.020-inch thick. These protrusions were identified from photos taken during the rendezvous pitch maneuver conducted on flight day three, as Discovery approached the orbiting Space Station.

The crews are scheduled to go to sleep about 2:09 p.m. CDT.

Discovery's astronauts worked much of today on preparations for Wednesday's gap filler repair spacewalk. Transfer of materials to and from the International Space Station continued with crewmembers of both spacecraft making good progress.

Spacewalkers Soichi Noguchi and Steve Robinson spent an hour this morning beginning about 2:40 a.m. CDT with Mission Specialists Andy Thomas and Wendy Lawrence, and Pilot Jim Kelly on a review of spacewalk procedures. Thomas, as the intravehicular crewmember, will coach and monitor the spacewalkers, while Lawrence and Kelly will operate the Station's Canadarm2.

That robotic arm will carry Robinson to the repair sites on the underside of the forward part of Discovery where he will either gently pull out the protruding gap fillers with his hand or with forceps, or remove the protrusions with a hacksaw.

After the procedure review, Lawrence and Kelly spent the subsequent 45 minutes in computer training for the arm tasks, using the Dynamic Onboard Ubiquitous Graphics program, or DOUG. Meanwhile, the spacewalkers and Thomas worked on assembly of the hacksaw that would be used if other methods do not work.

About 7:40 a.m. Lawrence and Kelly, using Canadarm2, unberthed External Stowage Platform 2 from Discovery's cargo bay. Noguchi and Robinson installed the platform's attachment device on the mission's first spacewalk on Saturday, and the platform itself is to be installed on the attachment device during Wednesday's spacewalk.

After lunch on board, Noguchi, Robinson and Thomas worked on spacewalk tool configuration. Near the end of their work day, all nine crewmembers on board, including Discovery Commander Eileen Collins and Station crewmembers, Commander Sergei Krikalev and NASA Science Officer John Phillips, did a spacewalk review.

The spacewalkers began a prebreathe of pure oxygen about 10:50 a.m., a little more than an hour before hatches linking Discovery and the Station were closed so the Shuttle could be depressurized to 10.2 psi. Both the prebreathe and the depressurization were aimed at reducing the nitrogen content of the spacewalkers' blood to reduce the possibility of nitrogen bubble formation in their bloodstreams during the spacewalk. Wednesday's spacewalk is scheduled to begin at about 3:14 a.m. CDT.

Late in the crew day Tuesday, astronauts received a phone call from President George Bush. The President thanked the crew for taking risks for the sake of exploration and wished them well in the remainder of their mission.

"It looks like this big patient is cured," Robinson told delighted flight controllers.

Fellow spacewalker Soichi Noguchi of the Japan Aerospace Exploration Agency helped Robinson with preparations, and from a perch near the end of a Space Station truss acted as observer and communication relay station between Robinson and astronaut Andy Thomas aboard Discovery. Thomas was the onboard coach and monitor for Robinson and Noguchi throughout the 6-hour 1-minute spacewalk. Discovery Pilot Jim Kelly and Mission Specialist Wendy Lawrence operated the Station's Canadarm2, which moved Robinson to and from the worksite. Today's spacewalk, the third of the mission, began at 3:48 a.m. CDT and concluded at 9:49 a.m.

Deputy Space Shuttle Program Manager Wayne Hale, in Wednesday's afternoon briefing, said "The crew demonstrated consummate professionalism and coolness beyond belief. They [the gap fillers] came out just as we thought they would. It looked easy but was not, which is a tribute to the crew and the team on the ground that planned it, so we're proud of that."

Gap fillers like those Robinson removed today are thin, coated Nextel fabric. The protruding gap fillers were identified in photos taken by Station crewmembers using telephoto lenses as Discovery did a slow back flip about 600 feet below before docking.

During the spacewalk Noguchi and Robinson, helped by the Station's robotic arm, installed an external stowage platform outside the station that will be used to house spare parts. Noguchi also installed another Materials International Space Station Experiment (MISSE). Like its predecessors, MISSE 5 exposes samples of various materials to the harsh space environment for several months.

In other activities, Kelly worked with Mission Specialist Charlie Camarda on an inspection of the repair demonstration tiles in Discovery's cargo bay. Using the Orbiter Boom Sensor System, they looked at tiles brought up for an experimental repair by Robinson and Noguchi on the mission's first spacewalk Saturday.

Station crewmembers, Commander Sergei Krikalev and NASA Science Officer John Phillips, continued to stow equipment and supplies on the Station and Shuttle. Discovery Commander Eileen Collins operated shuttle systems and supervised activities.

Hale also said the only part of Discovery's heat shield not yet cleared for entry is a bulging thermal blanket below the Shuttle commander's window. Managers will meet Thursday morning to review tests to help determine whether the blanket might pose a concern for entry.

The seven-member Shuttle crew awoke to the well-known country song "Amarillo by Morning," performed by George Strait, at 10:09 p.m. CDT. Their Station counterparts, the Expedition 11 crew of Commander Sergei Krikalev and Flight Engineer and NASA ISS Science Officer John Phillips, woke up 30 minutes later.

The morning includes an in-flight media interview for Commander Eileen Collins, and Mission Specialists Steve Robinson and Charlie Camarda. Elsewhere on the complex, Pilot Jim Kelly and Mission Specialist Wendy Lawrence will be performing a few robotic arm operations, as they release the Station's Canadarm2 from the Mobile Base System and attach it to the Multi-Purpose Logistics Module (MPLM). That task is being done in preparation for return of the MPLM to Discovery's payload bay.

Midway through the crew day, at about 4:19 a.m. CDT, Japan Aerospace Exploration Agency Astronaut Soichi Noguchi and Collins will participate in a special video conference with Japanese Prime Minister Junichiro Koizumi; and Minister of Education, Culture, Sports, Science and Technology Nariaki Nakayama. JAXA Astronaut Dr. Mamoru Mohri and several Japanese students and citizens will also participate in the call.

Later, Robinson, Camarda and Noguchi will continue stowage of equipment and supplies in the MPLM on the Shuttle and Space Station. Phillips and Krikalev will help with that activity as well before all of the crewmembers stop to share a special evening meal together.

About an hour later, at 7:04 a.m. CDT, the joint crews have planned a commemorative in-flight event paying tribute to the STS-107 Columbia crew. That event will air on NASA TV. The remainder of the day will be off-duty time for the Shuttle crew as they prepare for the final days of their mission.

Phillips and Krikalev will spend about two hours configuring the Common Berthing Mechanism for the MPLM removal before ending their workday with routine daily planning conference with ground controllers.

Thursday's Mission Management Team decision put to rest the work that was being done to assess the health of the thermal protection system. The tiles and reinforced carbon-carbon on Discovery's wings and nose were cleared earlier for entry.

Discovery and International Space Station crewmembers Thursday delivered a moving tribute to members of the Columbia crew and others, astronauts and cosmonauts, who lost their lives in the human exploration of space.

Each crewmember, in red shirt with Columbia's STS-107 mission patch spoke during the tribute as the docked spacecraft flew over the southern Indian Ocean approaching a sunset. Station Science Officer John Phillips said: "To the crew of Columbia, as well as the crews of Challenger, Apollo 1, Soyuz 1 and 11, and to those who have courageously given so much, we now offer our enduring thanks."

Mission Specialist Soichi Noguchi of the Japan Aerospace Exploration Agency repeated Phillips' words in Japanese during the tribute, and Station Commander Sergei Krikalev spoke them in Russian.

After their successful Wednesday spacewalk, Discovery and Station crewmembers continued transfer activities, mostly packing the Multi-Purpose Logistic Module Raffaello with items from the Station. The pressurized cargo carrier is to be unberthed Friday from the Station's Unity Node and returned to Discovery's cargo bay for the trip back to Earth.

Pilot Jim Kelly and Mission Specialist Wendy Lawrence attached the Station's Canadarm2 to Raffaello in preparation for its unberthing.

Discovery Commander Eileen Collins, spacewalking Mission Specialist Steve Robinson and Mission Specialist Charlie Carmada talked with reporters from the Associated Press and NBC. A little later Collins and Noguchi spoke with Japanese Prime Minister Junichiro Koizumi, Japanese astronaut Mamoru Mohri and others, including Japanese students.

Crewmembers had an hour together for a common meal, then the seven Discovery astronauts had the afternoon off. The Station crew spent about two hours preparing equipment for the unberthing of Raffaello.

"Anchors Aweigh" was the Shuttle crew wake-up song for the day, played at 9:15 p.m. CDT. The song was dedicated to Mission Specialist Wendy Lawrence at the request of Commander Eileen Collins. Space Station Expedition 11 crewmates John Phillips and Sergei Krikalev woke 30 minutes later.

The first tasks of the day center on preparation of the Raffaello Multi-Purpose Logistics Module (MPLM) for its berthing back into Discovery's cargo bay. That module was removed from Discovery on Flight Day 4, mated to the Station and unloaded. Discovery and the MPLM are now loaded with 7,055 lbs. of unneeded equipment and trash for return to Earth.

Pilot Jim Kelly and Lawrence will operate the Station robotic arm later in the day to move Raffaello from the Station and gently place it back into Discovery's cargo bay at 6:34 a.m. CDT. Then, joined by Mission Specialists Charlie Camarda and Andy Thomas, the four will use the Shuttle arm to return the Orbiter Boom Sensor System to its secured position on the sill of the payload bay for the ride back to Earth.

Throughout the day, the on-orbit team will continue with stowing equipment on Discovery's middeck and configurations for undocking, including Mission Specialists Soichi Noguchi, Steve Robinson and Thomas making final configurations and stowage of the spacesuits.

Both crews are scheduled for sleep at 1:09 p.m. CDT Friday with hatch closing and undocking scheduled early Saturday morning.

Discovery Commander Eileen Collins, Pilot Jim Kelly and Mission Specialists Soichi Noguchi (Japan Aerospace Exploration Agency), Steve Robinson, Andy Thomas, Wendy Lawrence and Charlie Camarda, also made preparations for Saturday's undocking of the orbiter. Station crewmembers, Commander Sergei Krikalev and NASA Science Officer John Phillips, helped.

Raffaello is loaded with more than 5,000 pounds of items bound for Earth, including equipment, experiment results and even personal gear of crewmembers dating back to Expedition 6, which left the Station in May 2003. Items for return to Earth have accumulated aboard the orbiting laboratory since the last Shuttle visit in December 2002.

Lawrence and Kelly used the station arm to unberth the module and return it to Discovery. The berthing was completed at 9:03 a.m. CDT. Raffaello, one of three pressurized cargo carrying modules built in Italy for use aboard the Shuttle, brought 3,768 pounds of equipment and supplies to the Station.

After Raffaello was secured in Discovery's cargo bay, Camarda and Thomas used the Shuttle arm to hand off the Orbiter Boom Sensor System to the Station arm. Lawrence and Kelly reberthed the OBSS in its position on the starboard sill of the cargo bay.

After that operation, Lawrence radioed congratulations to those on the ground for the performance of the Canadian-built OBSS and robotic arms. She and Kelly radioed down the Halleluiah Chorus from Handel's Messiah to emphasize those congratulatory words.

Discovery is scheduled to undock from the International Space Station at 2:24 a.m. CDT Saturday. Landing at Kennedy Space Center in Florida is scheduled for 3:46 a.m. CDT Monday.

Pilot Jim Kelly was at the controls as latches between the two vehicles were released and Discovery began to back gently away from the Station. Undocking occurred at 2:24 a.m. CDT as the two spacecraft flew high over the Pacific Ocean, west of Chile.

As Discovery moved away to a distance of about 400 feet, Kelly began a slow fly-around of the Station. Cameras on each spacecraft captured video and still images of the other.

After the fly-around, Kelly executed the first of two separation burns to move Discovery away from the Station and begin its trip home. The entire crew - Commander Eileen Collins, Kelly, and Mission Specialists Andy Thomas, Wendy Lawrence, Steve Robinson, Charlie Camarda and Soichi Noguchi of the Japan Aerospace Exploration Agency (JAXA) enjoyed some scheduled off-duty time before going to sleep at 11:39 a.m. CDT.

The crew will awaken at 7:39 p.m. CDT and turn its attention to stowing away much of the equipment used over the past 11 days in orbit, and verifying operation of Discovery's flight control surfaces and system.

Over the course of nine days of joint work, the crews moved more than 12,000 pounds of equipment and supplies to the Station and will return about 7,000 pounds of material from the Station to Earth. Spacewalkers Noguchi and Robinson left all four of the Station's attitude control gyroscopes functioning with the removal and replacement of one of the 600-pound units. They also installed a new stowage platform on the exterior of the Station and worked with an experiment that exposes a variety of materials samples to the harsh vacuum and extreme temperatures of space. Discovery was docked with the Station for 8 days, 19 hours and 54 minutes.

Aboard the Station, newly resupplied and emptied of surplus gear, Commander Sergei Kirkalev and NASA Science Officer John Phillips also had a light-duty day after undocking.

Following a crew farewell ceremony at 11:36 p.m. CDT, hatches between the spacecraft were closed at 12:14 a.m. CDT, with Discovery's undocking planned for 2:24 a.m. CDT Saturday morning.

"The Air Force Song" was the Shuttle crew wake-up song for the day, played at 9:09 p.m. CDT. The song was dedicated to Pilot Jim Kelly, a colonel in the U.S. Air Force, at the request of Commander Eileen Collins. Space Station Expedition 11 crewmates John Phillips and Sergei Krikalev woke 30 minutes later.

After Discovery undocks from the Station, with Kelly at the controls, the Shuttle will fly around the Space Station about 400 feet away to allow the Shuttle crew to take photographs of the complex.

The flyaround maneuver will begin at 2:54 a.m. CDT, and Discovery's final separation from the Station begins with an engine firing at 4:09 a.m. CDT.

The majority of the rest of the day will be free time for Discovery and the Station crew.

Discovery's crew, including Collins, Kelly and Mission Specialists Steve Robinson, Soichi Noguchi, Andy Thomas, Wendy Lawrence and Charlie Camarda, is scheduled for sleep at 11:39 a.m. CDT Saturday.

The Station crew, which will soon begin working back toward its normal workday hours, is scheduled to sleep at 1:09 p.m. CDT.

The crew was awakened at 7:39 p.m. CDT by "The One and Only Flower in the World" sung by the Japanese group SMAP. It was played for Mission Specialist Soichi Noguchi of the Japan Aerospace Exploration Agency (JAXA).

Commander Eileen Collins, Pilot Jim Kelly and Mission Specialist Steve Robinson, who also serves as Discovery's Flight Engineer, will checkout the orbiter's flight control system at 10:39 p.m. CDT. The three also will test the Reaction Control System with a hot fire of the jets at 11:49 p.m. CDT.

In the meantime, Noguchi, along with Mission Specialists Andy Thomas, Wendy Lawrence and Charlie Camarda will put away equipment that has been in use during the mission. Noguchi and Thomas will stow the Ku-band communications antenna at 8:19 a.m. CDT.

The entire group will gather on Discovery's flight deck and take a moment to answer questions from reporters at 3:06 a.m. CDT.

After its departure Saturday, Discovery is now about 90 miles away from the International Space Station and increasing that gap by about 8 miles each time it orbits the Earth.

Onboard the Station, Commander Sergei Krikalev and NASA Station Science Officer John Phillips are returning to their normal schedule, waking up at 1 a.m. CDT Sunday. They are enjoying a restful weekend after nearly 9 full days of work with the Shuttle crew.

Discovery's crew is scheduled for sleep at 11:39 a.m. CDT Sunday.

Discovery has two opportunities to land at the Kennedy Space Center on Monday. The first begins with a 3 minute, 7 second deorbit burn of the Orbital Maneuvering System engines at 2:40 a.m., followed by landing at 3:47 a.m. CDT.

In the event weather prevents landing on that first opportunity, a second is available, with deorbit burn at 4:15 a.m. resulting in a 5:22 a.m. CDT landing. It will be the 15th night landing in Florida and 20th overall for the Space Shuttle Program.

Weather forecasters predict favorable conditions with good visibility and only a slight chance of showers over the water in the vicinity of the three-mile-long landing strip. The backup site at California's Edwards Air Force Base was not activated for Monday.

The crew was awakened at 7:39 p.m. CDT by the song "Come on Eileen" by Dexy's Midnight Runners. It was played for Discovery's Commander Eileen Collins from the Mission Control Team.

Collins, Pilot Jim Kelly and Mission Specialist Steve Robinson, who also serves as Discovery's Flight Engineer, and Mission Specialist Andy Thomas will be on the flight deck for landing. Mission Specialists Soichi Noguchi, Wendy Lawrence and Charlie Camarda will be on Discovery's middeck.

After its departure Saturday, Discovery is now about 200 miles away from the International Space Station and increasing that gap by about 9 miles each time it orbits the Earth. Onboard the Station, Commander Sergei Krikalev and NASA Station Science Officer John Phillips have returned to their normal schedule, waking up at 1 a.m. CDT Monday.

In preparation for tomorrow's 3:47 a.m. CDT landing, Commander Eileen Collins, Pilot Jim Kelly and Mission Specialist Steve Robinson activated one of three hydraulic systems on Discovery and tested all of its aerosurfaces and steering jets. The rest of the crew - Andy Thomas, Soichi Noguchi, Wendy Lawrence and Charlie Camarda - completed packing up gear and hardware. The seven-member crew took a moment early this morning to talk with CBS, CNN, Fox, NBC and ABC, discussing their mission and upcoming return to Earth.

Discovery has two opportunities to land at the Kennedy Space Center on Monday. The first begins with a 3 minute, 7 second deorbit burn of the Orbital Maneuvering System engines at 2:40 a.m., followed by landing at 3:47 a.m. CDT.

In the event weather prevents landing on that first opportunity, a second is available, with deorbit burn at 4:15 a.m. resulting in a 5:22 a.m. CDT landing. It will be the 15th night landing in Florida and 20th overall for the Space Shuttle Program.

Weather forecasters predict favorable conditions with light and variable winds and a slight chance of showers in the vicinity of the three-mile-long landing strip. The backup site at California's Edwards Air Force Base was not activated for Monday.

On the International Space Station, Commander Sergei Krikalev and NASA Science Officer John Phillips had a light-duty day as flight controllers added the fourth Control Moment Gyroscope to the Station's attitude control mix. For the first time since June 2002, the Station has use of all four 600-pound units. Noguchi and Robinson replaced one CMG and restored power to another during spacewalks.

The landing marked the sixth night landing at Edwards Air Force Base, and the 50th time overall that a Shuttle concluded its mission in the California desert.

Commander Eileen Collins and Pilot Jim Kelly, assisted by Mission Specialist Steve Robinson, began Discovery's return to earth by firing the spacecraft's orbital maneuvering system engines to slow its speed and begin its descent. Discovery's ground track took it from the firing of the 2 minute, 42-second deorbit burn at 6:06 a.m. over the western Indian Ocean, traveling in a loop around Australia, then northeast across the Pacific, across the California coast north of Los Angeles and then to Edwards.

Persistent thunderstorms at the primary landing site in Florida resulted in a wave-off of two opportunities to return to the launch site today.

The STS-114 flight of Discovery with Collins, Kelly, Robinson and Mission Specialists Soichi Noguchi of the Japanese Aerospace Exploration Agency, Andy Thomas, Wendy Lawrence and Charlie Camarda provided unprecedented information on the condition of an orbiter in space. Noguchi and Robinson did three successful spacewalks at the International Space Station and Discovery transported tons of equipment and supplies to and from the Station.

From the Station, Commander Sergei Krikalev and NASA Science Officer John Phillips sent their congratulations to Discovery's crew and the flight control team in Houston.

Discovery's crew will have a welcome home ceremony at 3 p.m. Wednesday at Houston's Ellington Field.