Parazynski Credit - www.spacefacts.de

Personal: Male, Married, two children. Born in Little Rock, Arkansas, USA. MD

Astronaut Career

Astronaut Group: NASA Group 14 - 1992. Active Entered space service: 31 March 1992. Number of Flights: 5.00. Total Time: 57.65 days. Number of EVAs: 7.00. Total EVA Time: 1.94 days.

NAME: Scott E. Parazynski (M.D.)

NASA Astronaut

PERSONAL DATA:

Born July 28, 1961, in Little Rock, Arkansas. Considers Palo Alto, California, and Evergreen, Colorado, to be his hometowns. Married to the former Gail Marie Vozzella. They have one son. He enjoys mountaineering, rock climbing, flying, scuba diving, skiing, travel, and nature photography.

EDUCATION:

Attended junior high school in Dakar, Senegal, and Beirut, Lebanon. Attended high school at the Tehran American School, Iran, and the American Community School, Athens, Greece, graduating in 1979. He received a bachelor of science degree in biology from Stanford University in 1983, continuing on to graduate with honors from Stanford Medical School in 1989. He served his medical internship at the Brigham and Women's Hospital of Harvard Medical School (1990). He then completed 22 months of a residency in emergency medicine in Denver, Colorado, when selected to the astronaut program.

ORGANIZATIONS:

Member of the Aerospace Medical Association, the American Society for Gravitational and Space Biology, the Wilderness Medical Society, the American Alpine Club, and the Association of Space Explorers.

SPECIAL HONORS:

National Institutes of Health Predoctoral Training Award in Cancer Biology (1983). Rhodes Scholarship finalist (1984). NASA Graduate Student Researcher's Award (1988). Stanford Medical Scholars Program (1988). Research Honors Award from Stanford Medical School (1989). NASA-Ames Certificate of Recognition (1990). Wilderness Medical Society Research Award (1991). NASA Space Flight Medal (1994).

While in medical school he competed on the United States Development Luge Team and was ranked in the top 10 in the nation during the 1988 Olympic Trials. He also served as an Olympic Team Coach for the Philippines during the 1988 Olympic Winter Games in Calgary, Canada.

EXPERIENCE:

While an undergraduate at Stanford University, Dr. Parazynski studied antigenic variation in African Sleeping Sickness, using sophisticated molecular biological techniques. While in medical school, he was awarded a NASA Graduate Student Fellowship and conducted research on fluid shifts that occur during human space flight. Additionally, he has been involved in the design of several exercise devices that are being developed for long-duration space flight, and has conducted research on high-altitude acclimatization. Dr. Parazynski has numerous publications in the field of space physiology, and has a particular expertise in human adaptation to stressful environments.

NASA EXPERIENCE:

Selected by NASA in March 1992, Dr. Parazynski reported to the Johnson Space Center in August 1992. He completed one year of training and evaluation, and qualified for assignment as a mission specialist on future Space Shuttle flight crews. Dr. Parazynski initially served as one of the crew representatives for extravehicular activity in the Astronaut Office Mission Development Branch. He first flew in 1994 on STS-66 and has logged over 262 hours in space. He was then assigned as a backup for the third American long-duration stay aboard Russia's Space Station Mir, and was expected to serve as a prime crew member on a subsequent mission. He spent 5 months in training at the Gargarin Cosmonaut Training Center, Star City, Russia. In October 1995, when sitting-height parameters raised concerns about his fitting safely in the Soyuz vehicle in the event of an emergency on-board the Mir station, he was deemed too tall for the mission and was withdrawn from Mir training. He presently serves as the Astronaut Office Operations Planning Branch crew representative for Space Shuttle, Space Station and Soyuz training, and is assigned to the crew of STS-86.

CURRENT ASSIGNMENT:

Dr. Parazynski will serve as Mission Specialist-2 (Flight Engineer) on STS-86, NASA's seventh scheduled Shuttle mission to rendezvous and dock with the Russian Space Station Mir. While docked, he and Russian cosmonaut Vladimir Titov will perform a 5-1/2 hour EVA to retrieve experiments first deployed on Mir during the STS-76 docking mission. Launch is scheduled for September 1997.

• 3 November 1994 Flight: STS-66. Flight Up: STS-66. Flight Back: STS-66. Flight Time: 10.94 days.

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

• 29 October 1998 Flight: STS-95. Flight Up: STS-95. Flight Back: STS-95. Flight Time: 8.91 days.

• 19 April 2001 Flight: STS-100. Flight Up: STS-100. Flight Back: STS-100. Flight Time: 11.90 days.

• 23 October 2007 Flight: STS-120. Flight Up: STS-120. Flight Back: STS-120. Flight Time: 15.10 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.

Launch was delayed briefly while flight controllers evaluated an alarm during cabin pressure checks and several more minutes while range safety officers dealt with a stray aircraft in the launch area.

Commander Curt Brown, Pilot Steve Lindsey, and Mission Specialists Steve Robinson, Scott Parazynski and Pedro Duque, along with Payload Specialists Chiaki Mukai and Glenn arrived on orbit less than nine minutes after launch, ready to begin activating Shuttle systems and experiments in the Spacehab module located in Discovery's cargo bay.

The Shuttle's payload bay doors were expected to be opened about an hour and a half after launch, prior to the astronauts receiving a "go" to begin orbital operations.

The timeline calls for the astronauts to spend most of the afternoon and evening completing the setup and activation of dozens of experiments they will conduct throughout the mission to study the effects of microgravity on the human body and materials.

Discovery's astronauts are scheduled to begin an eight-hour sleep period about 11:45 p.m. Central time tonight and are due to be awakened tomorrow about 7:45 a.m. to begin their first full day of activity in orbit.

About 45 minutes after launch, Discovery's orbital maneuvering engines fired to round out the orbit at about 350 miles. The spacecraft is orbiting Earth every 90 minutes. All of Discovery's systems are performing normally.

Commander Curt Brown, Pilot Steve Lindsey and Payload Specialist John Glenn took a few minutes break from the research work to provide a status on the mission thus far, with Glenn describing his adaptation to weightlessness and the views of Earth from Discovery. Early this afternoon, the crew released the Petite Amateur Naval Satellite, or PANSAT, which is now trailing Discovery by about 27 miles, increasing that distance by about 9 miles with each orbit. PANSAT, developed by the Naval Postgraduate School in Monterey, California, will remain in orbit and test innovative technologies to capture and transmit radio signals that normally would be lost because the original signals were too weak or contained too much interference.

Mission Specialists Steve Robinson and Scott Parazynski unstowed and checked out Discovery's 50-foot long robot arm, finding everything in good condition and ready for Sunday's scheduled deployment of the SPARTAN solar science spacecraft. Robinson and Parazynski also surveyed the exterior of Discovery, observing a small piece of loose insulation on the left rear of the spacecraft. The loose insulation poses no problems for the Shuttle. The crew also used the arm to test a new wireless camera technology that can be used with reflectors in the cargo bay to develop a system that may lead to a new alignment aid for arm operators.

The crew will begin an eight-hour sleep period at about 11:10 p.m. and awaken at 7:10 a.m. Central time on Saturday to begin day three of the mission. Discovery is orbiting at an altitude of 349 statute miles by 340 statute miles, circling the Earth once every one hour, 35 minutes and 54 seconds.

Commander Curt Brown, Pilot Steve Lindsey and Mission Specialist Scott Parazynski will release PANSAT, the Petite Amateur Naval Satellite, early this afternoon. PANSAT is a small non-retrievable satellite developed by the Naval Postgraduate School in Monterey California. Designed to enhance the education of the military officers at the school through developing and observing its operation in space, PANSAT will capture and transmit radio signals that normally would be lost because the original signals were too weak or had too much interference.

Mission Specialists Steve Robinson and Parazynski will check out Discovery's Remote Manipulator System robot arm today to verify its operation prior to Sunday's scheduled deployment of the SPARTAN spacecraft for two days of free flight. During the checkout, they will survey the payload bay and also look at a possible loose tile on the left Orbital Manuevering System (OMS) engine pod, which was reported by Brown last night.

ESA Astronaut Pedro Duque and NASDA Astronaut Chiaki Mukai will check out and prepare the Middeck Glove Box, an enclosed research facility that will support numerous investigations throughout the mission. The glove box, referred to as MGBX, is a microwave sized research facility that provides the astronauts an opportunity to perform hands-on investigations in a controlled environment. Early this afternoon, Payload Specialist-2, John Glenn, will activate the MEPS experiment. MEPS, the Microgravity Encapsulation Process, studies the formation of capsules containing two kinds of anti-tumor drugs that could be delivered directly to solid tumors and has applications in chemotherapy treatments.

In addition, regularly scheduled exercise sessions and routine housekeeping chores also will occupy the crew's first full day on orbit, which promises to be a busy one for all seven members of the STS-95 crew. Flight Day 2 began at 7:45 a.m. central time today when the crew was awakened to the sounds of Louis Armstrong's "What A Wonderful World," played for Mission Specialist -2 Scott Parazynski from his wife, Gail.

Discovery is in an orbit with a high point of 349 statute miles and a low point of 340 statute miles, circling Earth once every one hour, 35 minutes and 54 seconds.

The crew also began several of the medical studies planned for the flight that investigate how the human body changes in weightlessness and how those changes compare with those that occur as part of the natural aging process on Earth. For those studies, 77-year old Payload Specialist John Glenn began providing some of the 10 blood samples and 16 urine samples that will be taken during the mission to study the effects of space flight on his body.

The checkout of equipment that will be used for tomorrow's deploy of the Spartan included a check of the Orbiter Space Vision System by astronauts Steve Robinson and Scott Parazynski. The system uses special markings on the satellite and shuttle cargo bay to provide an alignment aid for the arm's operator derived from shuttle television images. It will be used extensively on the next Space Shuttle flight in December, STS-88, as an aid in using the arm to join together the first two International Space Station modules. Later this evening, a check of navigation equipment and aids that will be used during the Spartan release was scheduled.

Glenn and Commander Curt Brown also took time out from the experiment work to speak with students in Ohio and Virginia about the scientific activities aboard Discovery. Discovery remains in excellent condition with no equipment problems to interrupt the ongoing research.

The shuttle is orbiting the Earth every 90 minutes at an altitude of about 340 statute miles. The crew is scheduled to go to sleep tonight at 10:35 p.m. and awaken at 6:35 a.m. Central on Sunday.

Payload Specialist John Glenn, 77, will begin providing the 10 blood samples and 16 urine samples needed to look into the effects of space flight on his body. Researchers want to better understand how the removal of gravity affects balance and perception, immune system response, bone and muscle density, metabolism and blood flow, and sleep. Mission Specialist Pedro Duque, 35, also will provide blood samples, which will be taken by Mission Specialist Scott Parazynski and Payload Specialist Chiai Mukai, both trained physicians.

The blood draws are part of the Protein Turnover in Space Flight study, which will track the balance between protein building and breakdown, the two parts of protein turnover that contribute to muscle atrophy. The astronauts in the experiment take small amounts of the amino acids alanine and histidine, which contain a special tracer molecules, 12 hours before each blood draw. This research may help benefit people on Earth who suffer from weakened muscles or loss of bone mass.

The on-orbit researchers also will continue their examinations of plants., animals and other materials as they react to environmental changes related to the absence of gravity. And Canadian developers of a Space Vision System will check out on board software that will allow them to switch from camera to camera in the payload bay and provide precise positioning information for use by robot arm operators assembling the pieces of the International Space Station.

Early in the crew day, Commander Curt Brown will switch back to a tried and true method of removing iodine from the shuttle's drinking water supply. Yesterday, the crew reported a strange taste in water coming out of a system being tested for the first time. Ground researchers are trying to determine what is causing the strange taste. Iodine is used to prevent contamination of the water system tanks and lines, but must be removed before the crew drinks the water or uses it in food preparation.

At 11:35 a.m., Brown and Glenn will answer questions posed by students at the Center of Science and Industry in Columbus, Ohio; the Newseum in Arlington, Va., and John Glenn High School in New Concord, Ohio.

The crew was awakened at 7:10 a.m. Central time to the sounds of "Cachito," a song about parenthood. Duque and his wife, Consuelo, recently had a baby. The crew will go to bed at 10:35 p.m.

Work will continue today with a wide variety of science experiments on board, although at a somewhat slower pace. Payload Specialist Chiaki Mukai and Mission Specialist Scott Parazynski - both physicians - will draw blood from Glenn and Mission Specialist Pedro Duque of Spain as part of the Protein Turnover Experiment, which assesses the body's breakdown and metabolism of protein before, during and after space flight.

Mukai and Glenn, each of whom wore an electrode net on their heads, as well as other measuring devices, during last night's sleep period, will complete some cognitive performance tests as part of their participation in the sleep study. The cognitive tests will include measurements of how quickly they respond to light cues on a lap-top computer.

Glenn and Mukai will don the electrode net again before turning in this evening. The electrodes are connected to a digital sleep recorder that monitors brain waves, eye movements, muscle tension, body movements and respiration. Mukai will swallow a capsule containing either melatonin or a placebo as part of the study before going to sleep.

Parazynski will check the status of components of the Hubble Space Telescope Orbital Systems Test (HOST) payload, which provides an on-orbit test bed for hardware that will be used during the third Hubble servicing mission. Parazynski and Pilot Steve Lindsey also will set up some of the tools that will be used during Tuesday's rendezvous and subsequent capture and reberthing of the Spartan satellite. Steve Robinson will use the Shuttle's robot arm to grapple Spartan tomorrow afternoon after Discovery completes its rendezvous with the sun-watching probe.

Other science activities today will include the collection of video data from the Advanced Gradient Heating Facility (AGHF) used for directional solidification and crystal growth, and from the Microgravity Glovebox (MGBX), which is used for investigations of colloids, or systems of fine particles suspended in fluid. Parazynski also will complete the 5th feeding of the bone cell culture that is part of the OSTEO experiment, an evaluation of bone cell activity under microgravity conditions.

Commander Curt Brown will spend some time this morning working with the Electronic Nose device, which was developed to detect, identify and quantify a wide range of organic and inorganic molecules and provide a comprehensive measurement of on-board air quality.

Mukai will be busy checking on the Vestibular Function Experiment Unit (VFEU), which holds two toadfish. The fish are electronically monitored to determine the effect of gravitational changes on the balance system in the inner ear. She also will monitor the Astroculture-8 facility that is designed to provide a controlled environment in which to grow plants in the weightlessness of space.

At 9:55 a.m. Central time, Brown, Duque and Glenn will receive a congratulatory call from Esperanza Aguirre, the Education Minister of Spain. Duque, the first Spaniard to fly in space, also will take questions from school children representing 17 regions of Spain.

At 4:00 p.m. Central time, Brown and Glenn will take part in unilateral interviews with the five major U.S. television networks.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 349 statute miles with all systems operating in excellent condition.

Research continues, however, as the Spartan solar science satellite released by Discovery yesterday now trails the Shuttle by about 30 miles, performing observations of the sun and the solar wind. Discovery Commander Curt Brown and Payload Specialist John Glenn also took time out to answer questions about the mission from reporters with major broadcast television networks in the U.S. during the afternoon.

Later, Pilot Steve Lindsey and Mission Specialist Scott Parazynski set up lap top computers in Discovery's cockpit in preparation for the retrieval of the Spartan satellite on Tuesday. Spartan is planned to be recaptured by the Shuttle at 2:45 p.m. tomorrow.

The crew is scheduled to go to sleep at 9:25 p.m. Central tonight and awaken at 5:25 a.m. Tuesday. Prior to going to sleep, Brown will perform a small firing of Discovery's steering jets to maintain the distance from Spartan during the crew's night. Also, Glenn and fellow Payload Specialist Chiaki Mukai will don special instrumentation they will wear for a second night in a row that records a variety of information such as brain waves and body motions as they sleep.

Discovery remains in excellent condition with no systems problems of concern to Mission Control, orbiting Earth at an altitude of 348 by 338 statute miles.

Rendezvous activities will begin when Commander Curt Brown fires Discovery's engines to lower the shuttle, causing it to accelerate ahead of the satellite. Discovery will fly over the top of Spartan, then coast back to about 8 or 9 miles behind the satellite. Brown and Pilot Steve Lindsey then will maneuver Discovery into position as Robinson powers up Discovery's 50-foot robot arm. Discovery will approach Spartan from beneath the sun probe to a distance of 35 feet. At that point, With the assistance of Scott Parazynski, Robinson will use the remote manipulator system to grapple Spartan to complete the first phase of its scientific mission. As Discovery closes in on Spartan today, the astronauts will test a device called the Video Guidance Sensor, a component of an automated docking system being prepared for use on the International Space Station. It is a laser system that provides precise measurements of how far away the shuttle is from a target and how fast it is moving toward or away from the target. Before grappling Spartan, Discovery will back away from the satellite to test the maximum range capability of the guidance system.

Spartan will be used again tomorrow for data collection, once again being unberthed from its payload bay cradle for a few hours so that cameras can be pointed at a series of targets on the spacecraft. Those cameras will test the Space Vision System that uses remote camera views to provide a robot arm operator with the ability to view areas that cannot be seen with the naked eye.

Other crew members will continue work with several of the on-board science experiments. Japanese Space Agency Payload Specialist Chiaki Mukai and fellow Payload Specialist John Glenn, along with Parazynski and European Space Agency Mission Specialist Pedro Duque, will undergo another series of blood draws. They will then take small amounts of the amino acids alanine and histidine, which contain special tracer molecules, 12 hours before another blood draw. This research is part of the Protein Turnover Experiment that may benefit people on Earth who suffer from weakened muscles or loss of bone mass. Duque, Mukai and Glenn also will collect urine samples as part of the study.

Glenn will don electrodes and a data recorder known as a holter monitor, which will record his heart rhythm on orbit, as part of an investigation of heart rate variability during space flight. He also will be kept busy feeding bone cell cultures that are part of the OSTEO experiment, an evaluation of bone cell activity under microgravity conditions, and he will work with the Advanced Organic Separations (ADSEP) experiment, which provides the capability to separate and purify biological materials in microgravity..

Glenn and Duque will spend time with the Astroculture plant-growing experiment and with the MEPS (Microencapsulation Electrostatic Processing System) that studies the formation of anti-tumor capsules containing two kinds of drugs. Duque will collect video data and photograph samples from the Microgravity Glovebox (MGBX), which is used for investigations of colloids, or systems of fine particles suspended in fluid.

As part of the evaluation of sleep disturbances in astronauts, Mukai and Glenn will complete a questionnaire about their personal observations of the previous night's sleep. They also will take a computerized battery of tests that measure reaction time, short-term memory, hand-eye coordination and other assessments.

Mukai will continue her work with the Japanese Vestibular Function Experiment Unit (VFEU), which holds two toadfish that are electronically monitored to determine the effect of gravitational changes on the inner ear's balance system. She also will monitor the Astroculture-8 facility that is designed to provide a controlled environment in which to grow plants in the weightlessness of space.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 341 statute miles with all systems operating in excellent condition.

The rendezvous began with Commander Curt Brown firing Discovery's orbital maneuvering engines to drop Discovery's orbit, accelerating it ahead of the SPARTAN. After closing the distance, Brown and pilot Steve Lindsey maneuvered Discovery in close as Mission Specialist 1 Steve Robinson operated the 50-foot robot arm. With MS2 Scott Parazynski assisting, Robinson directed the arm to a smooth grapple of the satellite at 2:45 p.m. CST. SPARTAN was placed in its berth in Discovery's cargo bay a short time later.

During the final maneuvers, astronauts tested the Video Guidance Sensor, a component of an automated docking system being prepared for use on the International Space Station. Flight Controllers noted that the system worked as planned.

Spartan will be used again tomorrow for data collection, once again being unberthed from its payload bay cradle for a few hours so that cameras can be pointed at a series of targets on the spacecraft. Those cameras will test the Space Vision System that uses remote camera views to provide a robot arm operator with the ability to view areas that cannot be seen with the naked eye.

While SPARTAN operations captured most of the attention today, other science operations continued aboard Discovery. Payload Specialists Chiaki Mukai and John Glenn, along with Parazynski and European Space Agency Mission Specialist Pedro Duque, continued taking blood samples as part of the Protein Turnover Experiment measuring muscle changes in zero gravity.

Glenn also attached electrodes and a data recorder to himself which record his heart rhythm on orbit, as part of an investigation of heart rate variability during space flight. He also fed bone cell cultures that are part of the OSTEO experiment, an evaluation of bone cell activity under microgravity conditions, and he worked with the Advanced Organic Separations (ADSEP) experiment, which provides the capability to separate and purify biological materials in microgravity..

Glenn and Duque worked with the Astroculture plant-growing experiment and with the MEPS (Microencapsulation Electrostatic Processing System) that studies the formation of anti-tumor capsules containing two kinds of drugs. Duque collected video data and photograph samples from the Microgravity Glovebox (MGBX) which is used for investigations of colloids, or systems of fine particles suspended in fluid. Mukai continued her work with the Japanese Vestibular Function Experiment Unit (VFEU), which holds two toadfish that are electronically monitored to determine the effect of gravitational changes on the inner ear's balance system

All systems aboard Discovery continue to operate well.

This afternoon Payload Specialist Chiaki Mukai along with STS-95 commander Curt Brown and Payload Specialist-2 John Glenn took a phone call from Japanese Prime Minister Keizo Obuchi and Minister of State for Science and Technology, Yutaka Takeyama. Also today, Brown, Glenn and pilot Steve Lindsey conversed with veteran newsman Walter Cronkite and NASA Administrator Daniel Goldin during a luncheon in Houston celebrating NASA's 40th anniversary. NBC's Jay Leno of the Tonight Show also interviewed Glenn, Brown and Lindsey in a conversation that will be aired on NBC tonight.

In other activity in space today, crew members continued work with several of the on-board science experiments. Brown, Lindsey, Robinson and Glenn completed a daily back-pain questionnaire by as part of a study of how the muscle, intervertebral discs and bone marrow change after exposure to microgravity.

Glenn and Mukai continued to record their food consumption and will once again don a sleep net and special sleep suit tonight. Electrodes on the sleep net and sensors in the sleep suit monitor brain waves, eye movements, muscle tension, body movements and respiration. The electrodes and sensors are connected to a digital sleep recorder that records a variety of measurements as they sleep. Mukai also will swallow a capsule containing either melatonin or a placebo as part of the sleep study.

Glenn removed the Holter monitor electrodes and data recorder he has worn for the past 24 hours, recording his heart rhythm on orbit, as part of an investigation of heart rate variability during space flight. Blood samples were again taken from Glenn and ESA astronaut Pedro Duque as part of the experiment monitoring the changes in muscle tissue in space.

Glenn and Lindsey operated the Astroculture plant-growing experiment, while Scott Parazynski and Duque monitored the Microgravity Science Glovebox (MGBX) experiments known as Colloidal Disorder-Order Transition and Structural Studies of Colloidal Suspension. Colloids are systems of fine particles suspended in fluid. Researchers hope to learn more about how the organization of atoms changes as they form into orderly solid structures. Duque deactivated these two experiments for the remainder of the mission.

Mukai continued her work with the Japanese Vestibular Function Experiment Unit (VFEU), which holds two toadfish that are electronically monitored to determine the effect of gravitational changes on the inner ear's balance system.

All systems on board Discovery continue to operate well.

The astronauts will once again remove the Spartan solar science satellite from its berth in Discovery's payload bay for several hours of data collection. Cameras will be pointed at a series of targets on the spacecraft to test the Space Vision System, which uses remote camera views to provide a robot arm operator with the ability to see areas that are out of viewing area.

This morning Mission Specialist Steve Robinson, assisted by Mission Specialist Scott Parazynski, will again test the Orbiter Space Vision System. OSVS uses special markings on Spartan and the shuttle cargo bay to provide an alignment aid for the arm's operator using shuttle television images. It will be used extensively on the next Space Shuttle flight in December as an aid in using the arm to join together the first two modules of the International Space Station.

Robinson will use the shuttle's 50-foot robot arm to grapple Spartan, unlatch it and maneuver it into position. Following the OSVS tests, he will use the Video Guidance Sensor to assist in the reberthing processes. VGS provides precise measurements of how far away the shuttle is from Spartan and how fast it is moving toward or away from the target. VGS is a component of an automated docking system being prepared for use on the International Space Station.

Other crew members will continue work with several of the on-board science experiments. Commander Curt Brown, Lindsey, Robinson and Payload Specialist John Glenn will complete a daily back-pain questionnaire by as part of a study of how the muscle, intervertebral discs and bone marrow change after exposure to microgravity.

Glenn and Japanese Payload Specialist Chiaki Mukai will once again don a sleep net before going to sleep this evening. Each also will wear a special sleep suit. Electrodes on the sleep net and sensors in the sleep suit will monitor brain waves, eye movements, muscle tension, body movements and respiration. The electrodes and sensors are connected to a digital sleep recorder that records a variety of measurements as they sleep. Mukai also will swallow a capsule containing either melatonin or a placebo as part of the sleep study.

Parazynski and Mukai will draw more blood from ESA Mission Specialist Pedro Duque and Glenn as part of the Protein Turnover Experiment (PTO), which is examining muscle atrophy during exposure to microgravity.

Glenn will remove and stow the Holter monitor electrodes and data recorder he has worn for the past 24 hours. The Holter monitor recorded his heart rhythm on orbit, as part of an investigation of heart rate variability during space flight. He also will process blood samples as part of the PTO experiment.

Glenn and Lindsey will spend time with the Astroculture plant-growing experiment, while Parazynski and Duque will collect more video data and photograph the Microgravity Science Glovebox (MGBX) experiments known as Colloidal Disorder-Order Transition and Structural Studies of Colloidal Suspension. Colloids are systems of fine particles suspended in fluid. Researchers hope to learn more about how the organization of atoms changes as they form into orderly solid structures. Duque then will deactivate these two experiments for the remainder of the mission.

Mukai will continue her work with the Japanese Vestibular Function Experiment Unit (VFEU), which holds two toadfish that are electronically monitored to determine the effect of gravitational changes on the inner ear's balance system.

Brown, Lindsey and Glenn will take part in an interview with CBS Radio news and the Tonight Show beginning at 12:30 Central time this afternoon.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 341 statute miles with all systems operating in excellent condition.

With the Spartan solar science satellite again secured in its berth in Discovery's payload bay, the astronauts will turn their full attention to some of the more than 80 experiments on board. They also will begin shutting down some of the experiments and facilities in anticipation of their return to Earth on Saturday morning.

Mission Specialist Steve Robinson will power up the Orbiter Space Vision System (OSVS) for an image optimization test. OSVS will be used in International Space Station assembly as a key source of precision data with which the robot arm operator will perform station assembly activities. Robinson and European Space Agency Mission Specialist Pedro Duque also will power up the Extravehicular Mobility Unit (EMU) and check the unit's communications system. The EMU would be used should a spacewalk become necessary; it provides pressure, thermal and micro-meteoroid protection, oxygen, cooling water, drinking water, food, waste collection (including carbon dioxide removal), electrical power and communications.

As they have throughout the flight, Commander Curt Brown, Pilot Steve Lindsey, Mission Specialist Steve Robinson and Payload Specialist John Glenn will complete a back-pain questionnaire as part of a study of how the muscle, intervertebral discs and bone marrow change due to microgravity. Results will be compared with data provided by astronauts during previous missions.

Glenn will continue blood sample analysis and blood processing that are part of the Protein Turnover (PTO) experiment, which is studying the muscle loss that occurs during space flight. Better understanding of the mechanisms of muscle loss may help scientists combat the muscle wasting commonly seen as a result of aging and in bedridden individuals.

Deactivation of some of the experiments will begin today. After using the Electronic Nose one last time to test the shuttle's air quality, Brown will deactivate it for the duration of the mission. The Electronic Nose is a miniaturized electronic air quality monitoring system that mimics the way the human nose detects changes in the air. Duque also will do a final shutdown of the Microgravity Science Glovebox and stow equipment associated with the facility.

Mission Specialist Scott Parazynski will check on the fish in the Vestibular Function Experiment Unit (VFEU). By studying how the balance organs of oyster toadfish in the VFEU adapt to microgravity, scientists hope to gain important insights about similar functions in humans and apply this information to develop therapies for equilibrium disorders on Earth.

At 12:10 p.m. Central time, the entire crew will gather for a press conference with U.S. and Japanese reporters at the Johnson Space Center in Houston, as well as with reporters gathered at the European Space Agency's Villafranca tracking facility outside Madrid, Spain. At 2:40 p.m. Central time, the astronauts will gather again for a conversation with Vice-President Al Gore and former Mercury astronaut Scott Carpenter from the White House.

Before going to sleep Wednesday night, the entire crew will gather for the traditional crew photograph. Then Glenn and Japanese Payload Specialist Chiaki Mukai will don for the last time their sleep nets and suits to monitor brain waves, eye movements, muscle tension, body movements and respiration during sleep. Mukai also will swallow a capsule containing either melatonin or a placebo as part of the sleep study.

Lindsey and Mukai will conduct additional work with the Astroculture experiment to study the growth of plants in the weightless environment of space. Brown and Glenn will complete the eighth and ninth feedings of the bone cell cultures that are part of the Canadian OSTEO experiment.

Preliminary weather forecasts indicate generally favorable weather to support Saturday's landing at 11:10 a.m. Central time at the Kennedy Space Center. Remnants of tropical storm Mitch are expected to pass through the area and move off Florida's east coast Friday night, allowing good weather for landing on Saturday.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 341 statute miles with all systems operating in excellent condition.

Commander Curt Brown and Pilot Steve Lindsey set Discovery down on the 3-mile long landing strip at KSC at 11:04 a.m. Central time, following a flawless hour-long descent back from space. A missing drag chute compartment door, which popped off during liftoff on October 29, posed no problem for the astronauts and had no effect on the landing.

For Payload Specialist Glenn, the landing was a gentler return home than he experienced more than 36 years ago when he splashed down in the Atlantic Ocean in his Friendship 7 capsule after becoming the first American to orbit the Earth. Glenn experienced only about 3 g's of gravitational force during today's reentry, half of what he experienced during his Mercury capsule mission in 1962.

"One G and I feel fine," Glenn exclaimed from the middeck following Discovery's wheelstop on Runway 3-3 at the Kennedy Space Center. "The view is still tremendous, give yourselves a pat on the back," Glenn added, as he congratulated his crew mates on the completion of the 92nd flight in Shuttle

Brown, Lindsey, Glenn, Mission Specialists Steve Robinson, Scott Parazynski and Pedro Duque of the European Space Agency and Payload Specialist Chiaki Mukai of NASDA were scheduled to be reunited with their families later today following postflight medical exams and medical tests associated with some of the biomedical experiments performed during the mission.

The astronauts will spend the night near the Kennedy Space Center tonight before leaving Florida tomorrow morning for a heroes' welcome back at Ellington Field in Houston Sunday.

Current plans call for the astronauts to leave the Cape Canaveral Air Station Skid Strip late Sunday morning for an arrival at Ellington around 2 p.m. Central time, where a crew return ceremony will mark their homecoming at Hangar 276, led by NASA Administrator Daniel Goldin, Johnson Space Center Director George W.S. Abbey, members of Congress and Houston Mayor Lee Brown.

A parade in downtown Houston is planned for the STS-95 astronauts on Wednesday, Nov. 11, Veteran's Day, to honor the crew, the nation's veterans and NASA.

Minor issues being worked by the crew and flight control teams in Houston and Moscow are not impacting the operation and health of the complex, but are occupying time of engineers in preparing troubleshooting procedures for items on board.

The activation of the station's Ku-Band antenna is on standby until procedures are put in place for a possible software patch to account for an apparent pointing error with the dish-shaped antenna. The Ku Band system is used to transmit television, voice and high-speed data to the ground. Normal communication is being managed through the S-Band audio system. Any required TV images, in the meantime, can be accommodated through the use of the laptop computer-based digital video system. Until that problem is corrected, transmission of experiment data from the Human Research Facility experiment rack in the Destiny laboratory is on hold.

A Destiny condensate venting system is not working and while troubleshooting continues, the thermal loop temperatures have been increased so that no water currently is being condensed. As a point of verification, a contingency water container has proven to be useful in serving as a storage location for condensate, if required.

In and around maintenance tasks and routine housekeeping chores, the crew has been busy setting up additional equipment and conducting status checks on some of the payloads. A new bicycle exercise machine called CEVIS (for Cycle Ergometer with Vibration Isolation System) was setup this week, while engineers assess the work needed to repair the station's treadmill, which is showing wear in many of the slats that provide support to the unit designed to allow exercise with little or no vibration that could impact sensitive experiment work.

The Progress supply craft docked to the Zvezda module delivered 89 kilograms of oxidizer to the service module's storage tanks via remote commanding from the ground. The Progress will be undocked from the station in mid-April in preparation for the arrival of the next shuttle flight carrying the station's Canadian-built robot arm and another Italian Space Agency supplied logistics module called Raffaello.

The Progress undocking provides an open port for the relocation of the Soyuz capsule around April 16-18 which will provide clearance for the placement of Raffaello during the shuttle mission, which launches April 19.

Later this week the Expedition Two crew is scheduled to perform some maintenance work in an attempt to get the carbon-dioxide removal assembly in Destiny working. The plan calls for a test of a cable to ensure it is working before changing the pump with a spare brought up on the most recent shuttle flight. As of now, with only three people onboard, carbon dioxide removal from the cabin air is adequately conducted by Zvezda's Vozdukh system.

The crew plans to take part in its first interview opportunity on Friday with reporters from CBS and the Associated Press at 10 a.m. CST Friday. The interview will be broadcast on NASA TV, but will be audio only.

Meanwhile down at the Kennedy Space Center in Florida, the crew of shuttle mission STS-100 is conducting its traditional countdown dress rehearsal in preparation for launch to the ISS April 19. The international crew consists of Commander Kent Rominger, Pilot Jeff Ashby, Flight Engineer John Phillips, Mission Specialist Scott Parazynski, Canadian astronaut Chris Hadfield, European astronaut Umberto Guidoni and Russian Aviation and Space Agency cosmonaut Yuri Lonchakov.

The International Space Station continues to orbit the Earth in good shape at an altitude of 238 statute miles (384 km).

• Bay 1-2: Orbiter Docking System, External Airlock, 3 EMU spacesuits - 2160 kg including 360 kg for the 3 suits
• Bay 3 Starboard: Adapter Beam with DCSU switching unit - 180kg
• Bay 5: Spacelab Pallet with Canadarm-2 SSRMS (Space Station Remote Manipulator System, 1800 kg mass), LDA, and 56 kg UHF antenna - 3256 kg
• Bay 6 Port: Adapter Beam with IMAX Camera - 238 kg
• Bay 8-12: Rafaello Module (MPLM-2) with MPLM racks and 3400 kg cargo - 7500 kg
• Sill: Canadarm RMS 303 - 410 kg

On 23 April the SSRMS station manipulator was unberthed from the SLP Spacelab pallet at 1114 GMT and latched on to the PDGF fixture on the Destiny ISS module at 1416 GMT. This was followed at 1458 GMT with the MPLM-2 Raffaello module being moved from Endeavour's payload bay by the Shuttle's RMS and berthed to the nadir port on the ISS Unity module at 1600 GMT. Over the next few days, the cargo racks on the MPLM were transferred to Destiny. Raffaello was then unberthed from Unity at 2003 GMT on April 27 and reberthed in the rear of Endeavour's bay for return to earth at 2059 GMT.

Undocking of Endeavour was delayed by a series of computer problems at the Station. Failures in the Station's command and control computers left only one of the three computers operating.

They were all restarted by April 29, and the Shuttle RMS grappled the Spacelab pallet at 2044 GMT . The station's Canadarm-2 released it at 2106 GMT, and the RMS berthed the pallet back in the Shuttle cargo bay. Endeavour undocked from the Station at 1734 GMT on April 29. The weather in Florida was bad at the planned May 1 landing time, so Endeavour landed in California. The deorbit burn was at 1502 GMT on May 1, with landing at 1610:42 GMT on runway 22 at Edwards. Endeavour returned to the Kennedy Space Center atop a Boeing 747 SCA aircraft on May 9.

Commander Kent Rominger, Pilot Jeff Ashby and Mission Specialists Chris Hadfield of the Canadian Space Agency, John Phillips, Scott Parazynski, Umberto Guidoni of the European Space Agency and Yuri Lonchakov of Rosaviakosmos blasted off on time from Launch Pad 39-A at 1:41 p.m. Central time as the ISS sailed over the Indian Ocean south of India. Aboard the station, Expedition Two Commander Yury Usachev and Flight Engineers Jim Voss and Susan Helms were told of Endeavour's launch as it lifted off from the pad. Approximately 20 minutes later, the three crew members took a few minutes out from routine maintenance work and preparations for Endeavour's arrival to watch a video feed of the launch uplinked to them by ISS flight controllers in Houston through the station's KU-band communications system.

Less than nine minutes after launch, Endeavour had reached its preliminary orbit and began its pursuit of the station for a docking Saturday morning. The seven astronauts began to configure systems for on-orbit operations and opened the shuttle's cargo bay doors before the start of an eight-hour sleep period tonight at 6:41 p.m. Central time.

Aboard the ISS, all systems continue to function normally as Usachev, Voss and Helms ready the complex for their first visitors since beginning their expedition one month ago. On Monday, a Russian Progress resupply vehicle was jettisoned from the aft docking port of the Zvezda module, enabling the station crew to undock its Soyuz return capsule from the nadir port of the Zarya module yesterday and fly it to a redocking with Zvezda in a 21-minute maneuver. That cleared the Zarya docking port for the arrival of the Soyuz rotation "taxi" crew at the ISS later this month. The taxi crew will deliver a fresh Soyuz capsule for the Expedition crew members' use as an emergency return vehicle. The Soyuz vehicles need to be rotated approximately every six months.

Hadfield and Parazynski are scheduled to venture outside Endeavour Sunday for the first of two scheduled space walks to unfold the huge booms of the 57-foot-long Canadarm2 and to route power to the device, which will be mounted on the Destiny Laboratory for future station assembly work. Canadarm2 is scheduled to "walk off" its pallet and attach itself to a grapple fixture on Destiny Monday, where it will receive power, data and commanding from the Expedition crew operating at robotic workstations inside Destiny.

Housed in Endeavour's cargo bay is the Italian Space Agency-provided Raffaello cargo module, which is carrying several tons of equipment for the Expedition Two crew and racks of hardware for installation in Destiny which will be used for scientific research in the future. Raffaello, which is the second of three such logistics modules, will be berthed to the ISS Monday so its contents can be transferred to the station throughout the course of docked operations.

Endeavour is circling the Earth in excellent shape as it flies in an orbit inclined 51.6 degrees to either side of the Equator.

Endeavour is scheduled to dock with the station at 8:36 Saturday morning to deliver the Canadian built high tech robotic arm, called Canadarm2 and the Raffaello Multipurpose Logistics Module supplied to the program by the Italian Space Agency. Raffaello contains equipment and supplies for the station and its crew of Commander Yury Usachev, and Flight Engineers Jim Voss and Susan Helms. It also brings two new experiment racks for the station's U.S. laboratory Destiny.

The Endeavour crew, Commander Kent Rominger, Pilot Jeff Ashby and Mission Specialists Chris Hadfield of the Canadian Space Agency, John Phillips, Scott Parazynski, Umberto Guidoni of the European Space Agency and Yuri Lonchakov of Rosaviakosmos were awakened at 2:41 a.m. Friday by "Then the Morning Comes" by the musical group Smashmouth. It was chosen for Phillips, making his first spaceflight.

Today the shuttle crew will checkout three spacesuits and the orbiter's robotic arm while rendezvous preparations include installation of the centerline camera and extension of Endeavour's Orbital Docking System ring. Another rendezvous engine burn is scheduled shortly before the crew finishes today's activities.

Space station crewmembers also will get ready for the rendezvous. Later today they will prepare equipment for transfer to the shuttle shortly after docking.

Endeavour will bring the first visitors to the Expedition Two crew since Discovery's departure last month. Shortly after Endeavour's scheduled undocking and departure from the station on April 28, a taxi crew is to arrive with a new Soyuz spacecraft. It will replace the Soyuz, which launched the first crew toward the station on Oct. 31, 2000. The Soyuz capsule has an on-orbit life of about six months.

Hadfield and Parazynski will conduct two spacewalks on Sunday and Tuesday. The first will focus on installation of the 2-ton, 57-foot-long Canadarm2. The second is devoted to checkout of the arm that will be instrumental in future space station assembly.

Major systems aboard Endeavour and the International Space Station continue to function well.

Endeavour is scheduled to dock with the station at 8:32 a.m. Saturday although the crews will not greet each other until early Monday. In preparation for tomorrow's rendezvous and docking, Hadfield and Parazynski checked out the tools and hardware that will be used during Endeavour's approach to the station, and Commander Kent Rominger and Pilot Jeff Ashby installed a center-line camera in the orbiter docking system.

Rominger, Ashby and Flight Engineer John Phillips performed another in a series of engine firings to refine Endeavour's approach to the Station. As of 5 p.m., Endeavour was approximately 1,400 miles behind and below the station, and closing that distance at the rate of about 171 miles every orbit of the Earth. Hadfield and Parazynski also verified the operation of the spacesuits they will wear on two scheduled space walks to install and activate the new Canadarm2 robotic arm.

European Space Agency astronaut Umberto Guidoni began preparations for the transfer of hardware and material from Endeavour to the station and worked with Ashby in checking out the shuttle's robotic arm to verify its operation. Yuri Lonchakov of Rosaviakosmos worked on the middeck and filled two large water containers for later transfer to the station.

Endeavour's astronauts will go to sleep at 5:41 p.m. today, awakening at 1:41 a.m. Saturday. They will quickly begin the final stages of their chase of the International Space Station. The final intercept burn is scheduled for 6:13 a.m., with docking at 8:32 a.m., as the two spacecraft fly overhead the Southeast coast of China, northeast of Victoria, Hong Kong.

Meanwhile, on the space station, Expedition 2 Commander Yury Usachev and Flight Engineers Susan Helms and Jim Voss continued packing return items and making sure their orbiting home is ready for the crew's first visitors. Flight controllers report that the Russian segment's carbon dioxide removal system is not working at its highest rate, probably due to a clogged filter screen. The situation poses no problems for the upcoming shuttle visit, but could lead to increased use of backup lithium hydroxide removal systems after the shuttle undocks and additional crew members arrive on a Soyuz taxi flight. The station crew may be asked do some repairs on the unit on Saturday.

Otherwise, all major systems aboard Endeavour and the International Space Station continue to function well.

Rominger, Pilot Jeff Ashby and Mission Specialists John Phillips, Chris Hadfield, Umberto Guidoni, Scott Parazynski and Yuri Lonchakov, briefly opened a hatch leading from the Shuttle into Pressurized Mating Adapter-2, and retrieved a battery-powered drill for use on Sunday's space walk. They also left behind some supplies that were later retrieved by the station crew. From the station side of the hatch leading to PMA-2, flight engineer Jim Voss used a video camera to film the smiling Shuttle crew members as they transferred four water containers, computer equipment, some fresh food and film for the IMAX camera.

Though securely linked together, the two crews are not scheduled to greet one another in person until early Monday, following the first space walk to be conducted Sunday by Hadfield and Parazynski. Late in their day, Hadfield and Parazynski were joined by space walk coordinator Phillips in conducting some final checks of the suits and hardware that will be used during tomorrow's planned 6 ½ hour space walk. The full crews on both vehicles then reviewed the procedures to be followed throughout Hadfield and Parazynski's space walk.

This first space walk, scheduled to begin about 6:20 a.m., will focus on installing the station's robotic arm, called Canadarm2, and attaching an ultrahigh frequency (UHF) antenna on the station's exterior. A second space walk is scheduled for Tuesday, and will focus on establishing power connections and checking out the new 57.7 foot-long robotic arm.

Expedition Two Commander Yury Usachev and Flight Engineer Susan Helms verified the performance of the station's carbon dioxide removal system, called Vozdukh, which had been operating in a slightly degraded condition. The system started working normally overnight on its own, and their checkout confirmed that it is operating within normal parameters. Usachev, Helms and Voss also exercised and continued preparations for the next week of joint operations with the Shuttle crew.

All systems are in good shape aboard both vehicles. The Station crew will go to sleep at 5:31 p.m. today, followed 10 minutes later by the crew of Endeavour. Mission Control will awaken the shuttle crew at 1:41 a.m. Sunday and the station crew will hear its wake-up alarm tone at 2:01 a.m.

Before the undocking a week later, two space walks will have been conducted and Raffaello, the second Multipurpose Logistics Module provided by the Italian Space Agency, will have been unloaded and reloaded after berthing to the station. The pressurized cargo carrier - an orbital moving van - is bringing food, equipment and other supplies, as well as two scientific experiment racks for the U.S. laboratory Destiny.

Endeavour will approach the station from behind and below. Commander Kent Rominger and Pilot Jeff Ashby, assisted by the rest of the crew, will fly the shuttle to a point about 600 feet directly below the station. With the cargo bay pointed toward the station, they will fly a quarter circle to a point about 300 feet ahead of the station. From there they will begin a slow approach to the docking port at the forward end of Destiny. Stationkeeping will begin at a distance of about 30 feet to ensure a good alignment with the station's docking target before Rominger resumes the approach at a speed of about one foot every 10 seconds until docking.

Kenny Loggins' "Danger Zone" awakened Endeavour's crew - Rominger, Ashby and Mission Specialists Chris Hadfield, John Phillips, Scott Parazynski, Umberto Guidoni and Yuri Lonchakov - early this morning. The song from the Top Gun soundtrack was played for Rominger.

The space station's crew was awakened shortly after 2 a.m. to make final preparations for the shuttle's arrival. The Expedition Two crew of Russian Commander Yury Usachev and astronauts Jim Voss and Susan Helms has been aboard the station for more than a month since assuming duty from the Expedition One crew on March 18.

Though joined together, the two crews will not meet face-to-face until early Monday, after the first space walk by Hadfield and Parazynski. Endeavour's cabin pressure was lowered to 10.2 pounds per square inch Friday afternoon in preparation for that space walk, while the atmosphere inside the station remains a normal 14.7 psi.

The first space walk, scheduled to begin about 6:20 a.m. Sunday, will focus on installation of the station's robotic arm, called Canadarm2. The space walkers also will install a UHF antenna on the station's exterior. Their second space walk Tuesday, features routing power and checking out the stations arm, which at 57.7 feet long, is longer, more flexible and more powerful than the robotic arm used by the shuttle fleet. If necessary, a third space walk could take place Thursday.

All systems are in good shape aboard both vehicles.

Shortly after crew wakeup, Canadian Space Agency astronaut Chris Hadfield and Scott Parazynski began suiting up for the six and a half hour space walk that marks the 19th devoted to the assembly of the ISS and the 63rd in the history of the shuttle program. Hadfield will be wearing a spacesuit with red stripes around the legs, while Parazynski's suit will have no markings. John Phillips will serve as the in-cabin quarterback for the space walk as Pilot Jeff Ashby and European Space Agency astronaut Umberto Guidoni operate the shuttle's robotic arm to install the new arm on the outside of the Destiny laboratory.

Hadfield and Parazynski will connect cables to give the arm power and allow it to accept computer commands from the lab. They will unbolt the arm from the pallet, then unfold its two booms and tighten bolts to make them rigid. The space walkers also will install a UHF antenna on Destiny.

The Space station's Expedition Two crewmembers Jim Voss and Susan Helms will power up the arm from the Robotic Work Station inside Destiny, checking connections made by the space walkers.

A second space walk is scheduled for Tuesday, and will focus on establishing permanent power connections between the 57.7 foot-long arm and station and running it through a thorough checkout.

The shuttle crew was awakened earlier this morning by Canadian Stan Roger's "Take It From Day to Day" played for Hadfield in honor of the space walk - the first ever by a Canadian. The Expedition Two crew was awakened shortly after the shuttle crew.

Endeavour's cabin pressure will be increased to match that of the station during the space walk leading toward opening of the hatches between the shuttle and station Monday morning. Endeavour docked with the station at 8:59 a.m. Saturday followed soon after by entrance into the docking port on the station to retrieve some tools for use during today's space walk. The shuttle crew left behind four water containers, fresh food, computer equipment and IMAX camera film for the station crew.

Mission Control Houston recognized the importance of today's activities sending up a congratulatory message from Canadian Astronaut Steve MacLean and playing the Canadian anthem, "Oh Canada" before the two space walkers - Scott Parazynski and Chris Hadfield - floated back into Endeavour. Hadfield became the first Canadian to conduct a spacewalk today as he worked to install the Canadian built and provided Canadarm2 robotic arm.

"It really just opens the door to what all of us can be doing here internationally, beginning to explore space as a planet," said Hadfield.

Parazynski and Hadfield spent 7 hours and 10 minutes working outside the station, installing first an Ultrahigh Frequency (UHF) antenna before turning their attention to the station's new robotic arm. They floated out of Endeavour's airlock at 6:45 a.m. central time and about two hours later had installed and deployed the UHF antenna on the Destiny module of the station.

With that complete, the two astronauts turned their attention to installing the new station robotic arm. The main boom was deployed at 10 a.m. central, and a few minutes later, at 10:10 a.m. Hadfield and Parazynski began unfolding the arm as Endeavour and the station flew 238 miles over the Atlantic Ocean.

With the new arm secured in its pallet attached to the exterior of the Destiny laboratory, Hadfield and Parazynski connected cables to give the arm power and allow it to accept computer commands from inside the lab. After unfolding the arm, they used a pistol grip tool to properly secure a series of expandable fasteners that keep the booms rigidized in position. The two space walkers experienced some difficulty ensuring an appropriate torque level had been placed on the fasteners. By taking the pistol grip tool from automatic to manual mode, Hadfield and Parazynski securely tightened the bolts in place, completing their activities for the day and beginning to clean up the payload bay before returning to Endeavour.

Today's spacewalk, which concluded at 1:55 p.m., was the 19th conducted to assemble the International Space Station. A second spacewalk scheduled for Tuesday will focus on establishing permanent power connections between the arm and station and performing a thorough checkout.

At 1:53 p.m., Flight Engineers Susan Helms and Jim Voss, on board the station, commanded the first motion of the new station robotic arm as they flew 242 miles over the Indian Ocean crossing the eastern coast of Africa. All indications are that the arm operated perfectly in this initial commanding.

Tomorrow, just before 5:30 a.m., Helms and Voss will "walk" the arm off the pallet and attach it to a grapple fixture on the Destiny module. On Wednesday morning, they will use the station arm to hand the pallet to the shuttle arm. In a procedure that will take about 3 ½ hours from start-to-finish, the pallet will be transferred from one arm to the other and berthed back in Endeavour's payload bay for return to Earth

Endeavour's 50 foot-long robotic arm will be pressed into service once again Monday morning as Pilot Jeff Ashby grapples the Italian Space Agency-provided "Raffaello" logistics module and docks it to the Unity module. Early Tuesday morning, the Expedition Two crew - Voss, Helms and Commander Yury Usachev - will enter Raffaello and begin transferring the supplies, equipment and experiment racks loaded inside.

After a busy day on orbit for both crews, the station crew will go to sleep at 5:31 p.m., followed 10 minutes later by Endeavour's crew. Mission Control will wake up Commander Kent Rominger, Ashby, Mission Specialists John Phillips, Yuri Lonchakov, Umberto Guidoni, Hadfield and Parazynski at 1:41 a.m. Monday. The station crew is scheduled to wake up at 2:01 a.m.

Hatch opening was set for 4 a.m. following a wakeup call from Mission Control earlier this morning. Judy Collins' "Both Sides Now" for Pilot Jeff Ashby started the shuttle crews' day.

After transfer of equipment and supplies, the hatches will be closed again a little after 2 p.m. so that the Shuttle cabin pressure can once again be lowered to prepare for Tuesday's second spacewalk. That spacewalk will focus on permanently powering the station arm and doing further checkouts.

The 57.7-foot arm was installed and unfolded Sunday during a 7 hour, 10 minute spacewalk by Scott Parazynski and Chris Hadfield. They also installed a UHF antenna on the station's U.S. laboratory Destiny. It was the 19th spacewalk devoted to ISS assembly and the 63rd in the history of the shuttle program.

After additional checkouts by Helms and Voss this morning, the arm will "walk" off the Spacelab Pallet on which it was launched. Its free end will be attached to a Power and Data Grapple Fixture on Destiny, becoming the arm's base. That first step, beginning a little after 5 a.m., will cover just over 24 feet. Wednesday morning, the station arm will hand the pallet to the shuttle arm, to be berthed in Endeavour's cargo bay for return to Earth.

Endeavour's own 50-foot robotic arm, operated by Ashby, will grapple the Raffaello logistics module in the cargo bay and dock it to the Unity module. Its installation there should be complete about 10 a.m. today. Early Tuesday, the Expedition Two crew will begin transferring the food, supplies, equipment and two experiment racks for installation in Destiny from Raffaello to the station.

Both crews are scheduled to end their day about 6:30 p.m. today. Both spacecraft are in excellent shape orbiting Earth every 92 minutes at an altitude of 240 statute miles.

The new 57-foot long Canadian-built Canadarm2 robot arm took its first step this morning, "walking off" a pallet mounted at the top of the Destiny Laboratory to grab onto an electrical grapple fixture on Destiny capable of providing data, power and telemetry to the dexterous appendage.

With Expedition Two Flight Engineer Susan Helms sending commands from a workstation inside Destiny, the arm began to move off the pallet at 6:13 a.m. Central time. Three hours later, after an extensive checkout of all of its new joints, the arm affixed itself to the Destiny grapple point where it will remain overnight in preparation for its first active grappling of a payload --- the pallet on which it was launched --- on Tuesday.

As Canadarm2 was completing its work for the day, Mission Specialist Scott Parazynski used Endeavour's slightly smaller robot arm to latch onto the Italian-built Raffaello cargo module in the Shuttle's payload bay. Raffaello was lifted out of the bay and was attached to a docking port on the Station's Unity module at 11:00 a.m., setting the stage for Expedition Commander Yury Usachev, and Flight Engineers Jim Voss and Helms to begin unloading three tons of supplies beginning tomorrow. Parazynski was assisted by European Space Agency astronaut Umberto Guidoni, who will take the lead in assisting the Station crewmembers in the unloading of Raffaello and the repacking of discarded items in the module later this week.

Parazynski and Canadian Space Agency astronaut Chris Hadfield prepared for their second spacewalk of the mission tomorrow by checking out their tools and spacesuits. They are scheduled to emerge from Endeavour's airlock around 8 a.m. Tuesday for a planned 6 ½ hour excursion to rewire the base of the newly installed Canadarm2 so it can operate from its new home on the Destiny Laboratory, to remove a communications antenna from Unity which is no longer needed and to mount a spare electrical converter unit on a stowage platform on Destiny for future Station use.

Earlier today, Commander Kent Rominger, Pilot Jeff Ashby and Mission Specialists John Phillips and Yuri Lonchakov of the Russian Aviation and Space Agency led the way as hatches swung open between Endeavour and the ISS at 4:25 a.m., allowing the ten crewmembers to greet one another for the first time. Some supplies carried to the Station aboard Endeavour were transferred throughout the day until the hatches once again were closed at 2:26 p.m. after 10 hours of joint operations. The hatch closure enabled the Shuttle's cabin pressure to be lowered to support tomorrow's spacewalk.

Near the end of the day, Rominger and Ashby supervised a one-hour firing of Endeavour's jets to gently raise the orbit of the ISS about 2 ½ statute miles, from 237.8 statute miles to 240.3 statute miles. Two more reboosts are planned on Wednesday and Thursday to leave the Station at the correct altitude for the arrival of a Russian-commanded "taxi" crew next week delivering a fresh Soyuz return vehicle to the complex.

Both crews are scheduled to end their day just after 6:30 p.m. and will be awakened early Tuesday morning. Both spacecraft are in excellent shape orbiting the Earth every 92 minutes.

The Raffaello logistics module, now open for business following yesterday's berthing to the side of the station's Unity module, will be unloaded over the course of the next five days and then reloaded with unneeded cargo from the station for return to Earth.

While the Expedition Two crew of Commander Yury Usachev and Flight Engineers Jim Voss and Susan Helms begin to transfer goods from Raffaello, on the other side of the hatch aboard Endeavour, Scott Parazynski and Chris Hadfield planned to conduct the second Extravehicular Activity beginning about 8 a.m.

The first order of business for the veteran spacewalkers will be to connect power, computer and video cables to the Power and Data Grapple Fixture on the side of the station's Destiny laboratory. An antenna on Unity will be removed, as it is no longer needed. Cables on the pallet that carried the new robot arm to the station will be disconnected. Once those cables are removed, the Canadian-built Canadarm2 will be receiving power and communicating with the station's Robotics Work Station inside Destiny.

Near the end of the planned 6-½ hour spacewalk, Helms will command the station's new robotic arm to pick up the 3,000-pound pallet that delivered it to space. She then will maneuver the pallet through various positions to test the arm with a load. Helms will finish today's tests by maneuvering the pallet over Endeavour's payload bay where it will remain parked overnight, still attached to the high-tech robotic arm.

The day began for the astronauts and cosmonauts with the dulcet tones of Louis Armstrong singing "What A Wonderful World." The song was played for Parazynski in honor of today's spacewalk.

Included in the nearly two tons of equipment being off-loaded from the Italian-built Raffaello are two new experiment racks that soon will be filled with science experiments currently in Endeavour's middeck, and other experiments that will be brought to the station on future shuttle missions. Once the hatches are open late this afternoon after the spacewalk, European Space Agency astronaut Umberto Guidoni will take the lead in assisting the station crewmembers in the unloading of Raffaello and the repacking of discarded items in the module for return to Earth.

Both spacecraft are in excellent shape orbiting the Earth every 92 minutes at an altitude of 237 statute miles.

Expedition 2 Flight Engineers Jim Voss and Susan Helms steered Canadarm2 as it lifted its first payload in space, a 3,000-pound pallet that the 57-foot-long arm had been nestled in for launch in the shuttle's cargo bay.

Today's 7 hour, 40 minute spacewalk began at 7:34 a.m. Central time, as Hadfield and Parazynski worked to complete all of the primary goals of the mission, including the connection of the Power and Data Grapple Fixture circuits for the new arm on Destiny, the removal of an early communications antenna and the transfer of a spare Direct Current Switching Unit from the shuttle's payload bay to an equipment storage rack on the outside of Destiny.

As the pair rewired power and data connections for Canadarm2, the backup power circuit failed to respond to commanding from Helms, who was operating from a workstation inside Destiny. Hadfield and Parazynski opened a panel to gain access to another connector at the base of the arm and after disconnecting and reconnecting cables, were able to complete the redundant power path to the arm to the cheers of flight controllers in Houston.

During the removal of the early communications antenna, an electrical connector cover got away from Hadfield and nestled behind a thermal cover in the docking port to which the airlock will be mated in June. After two unsuccessful attempts to locate the errant piece of metal - which required extensive coordination between the shuttle and station flight control teams on the ground -- Hadfield was instructed to stop searching and to move on to other work. The errant component is not expected to have any impact on future operations. With all of their work successfully completed, Hadfield and Parazynski completed their space walk at 3:15 p.m., bringing the total spacewalk time on STS-100 to 14 hours, 50 minutes. A potential third spacewalk on Thursday likely will not be needed.

Expedition Two Commander Yury Usachev and Station crewmates Voss and Helms started their workday transferring supplies, equipment and experiment racks from the Raffaello cargo module, which is berthed to the Unity connecting node.

After the spacewalk was completed, the two crews turned their attention to reopening the hatches between the station and shuttle. Commander Kent Rominger reported that Endeavour's crew had returned to the ISS at 5:15 p.m. to set the stage for the resumption of transfer activities on Wednesday. The two crews will begin their sleep periods shortly after 6:30 p.m.

Both spacecraft are in excellent shape orbiting the Earth every 92 minutes at an altitude of 237 statute miles.

Shortly after the ISS crew went to bed last night, the ISS flight controllers reported a loss of Command and Control Computer number one (C&C 1), one of three systems management computers on board. Overnight, flight controllers inititiated a procedure to re-string those functions through one of the two remaining backup computers that route data for systems management. This morning when Expedition Two Flight Engineer Susan Helms sent commands to transfer data files from the mass storage device, which houses the files for station systems management for the operation of the robotic work stations, the command was rejected.

After initial troubleshooting efforts failed to resolve the problem, flight controllers once again worked a procedure to re-string data management functions to the third computer, but the computer problem continued and flight control teams continued to evaluate the situation throughout the day.

Following a power cycle of command and control computer 1, the first of a series of diagnostic commands - this to turn on and off a light on board the Destiny laboratory - was successfully transmitted from the ground to the space station shortly before 7:30 p.m. Overnight the space station flight control team will attempt to reset the computers by commanding them from the "primary" to "standby" mode in an effort to clear any software interaction that might be causing the problems. If successful, this would allow the Expedition Crew and ground controllers to again interface with the command and control computers. The diagnostic troubleshooting will continue through the night.

The primary result of today's computer problem was a loss of communication and data transfer between the Space Station Flight Control Room and the station. Communication capability was routed through Endeavour enabling the crew and flight controllers to talk to one another.

Despite the difficulties encountered with the computer system today, all systems on board the spacecraft continued to function properly.

Several of the activities planned for today, including the handoff of a 3,000 pound pallete from the station's new robotic arm, back to the shuttle's arm, were postponed until Thursday, pending resolution of the computer issue. A reboost of the complex, using Endeavour's small thrusters, also was delayed. The crew members instead turned their attention to offloading experiment racks and equipment from the Raffaello logistics module, and transferring the experiments and hardware to the station.

Once the computer difficulties are resolved, Helms and crew mate Jim Voss will command the station's new Canadarm2 to maneuver the pallet within reach of Endeavour's robotic arm under control of mission specialists Chris Hadfield and Scott Parazynski.

Shortly before 7 p.m. Central, Mission Control said goodnight to both crews following a busy day on orbit. Expedition Two Commander Yury Usachev, Voss and Helms are slated to wake up about 2:30 a.m. Thursday; the seven astronauts on board Endeavour will receive a wake-up call from Mission Control about 10 minutes later.

While robotic arm operations are underway by Expedition Two crewmembers Susan Helms and Jim Voss aboard the station, and shuttle crewmembers Chris Hadfield and Scott Parazynski, the remaining shuttle and station astronauts and cosmonauts continue the task of unpacking the Raffaello high-tech moving van. European Space Agency astronaut Umberto Guidoni is overseeing the unloading of the Italian-built logistics module.

Today's wakeup call to the crew was "Con te Partiro" ("With You I Will Go"), sung by Italian opera singer Andrea Bocelli. It was played for Guidoni who is from Italy.

Working at the Robotics Work Station in the Destiny Laboratory, Helms and Voss will use the new Canadarm2 to maneuver the pallet within reach of Endeavour's robotic arm under control of Hadfield and Parazynski. In a reverse passing of the torch, the new arm will pass the pallet to its older cousin officially beginning the station arm's own career in space.

Hadfield and Parazynksi completed connections on the station's new robotic arm during the second of two planned spacewalks yesterday. The 7 hour, 40 minute Extravehicular Activity included the connection of power, data and television cables, which allow the robot arm to operate from a base on the outside of the Destiny science laboratory.

At about 2:30 today, Endeavour's Commander Kent Rominger and Pilot Jeff Ashby will boost the station's altitude another 2 ½ miles by firing thruster jets in a precise sequence for about one hour. With one reboost maneuver completed several days ago, a third and final identical firing of the reaction control system jets is planned Thursday.

Both spacecraft are in excellent shape orbiting the Earth every 92 minutes at an altitude of 243 statute miles.

Mission Specialist Scott Parazynski, at the controls of the shuttle's robotic arm and assisted by European Space Agency Astronaut Umberto Guidoni, grappled the 14,700 pound "moving van," undocking it from the Destiny laboratory and carefully maneuvering it into position before securing it in the payload bay. Over the course of the past week, the astronauts and cosmonauts on board the station transferred 6,000 pounds of equipment from Raffaello to the station, and then stowed unneeded equipment and hardware on board for return.

The unberthing of Raffaello followed last night's work by ground controllers to successfully synchronize timers on all the on-board computers, including the one operational Control and Command (C&C) computer in Destiny. With the one operational C&C computer, and Susan Helms at the ready with a back-up laptop computer in Unity, the crew was given a "go" to begin the undocking procedure about 2:20 p.m. today.

Work to recover the command and control computers continued throughout the day today, with good progress reported, and a reload of software currently under way to restore C&C computer number three to full performance. C&C computer number one was determined to have a failed hard drive. That C& C computer will be replaced on orbit with a backup payload computer, called Payload Computer Two, so that the failed C&C computer can be returned to Earth for inspection and analysis. Overnight, flight controllers will reload software on C&C number one in the hopes of bringing it back on line as well.

The plan for the crew tomorrow, assuming a minimum of two C&C computers are up and functioning, would see Helms and crew mate Jim Voss operating the station's robotic arm to hand off its cradle to the shuttle's robot arm, being commanded by Mission Specialists Scott Parazynski and Chris Hadfield on board Endeavour. Most of the activities planned for a "dress rehearsal" of the maneuvers the arm will perform during the next station assembly mission to install an airlock have been deleted from the timeline. Only the portions of the rehearsal related to shuttle robotic arm camera views will be performed.

Earlier today, NASA and the Russian Aviation and Space Agency, Rosaviakosmos, reached a decision on the launch of the Soyuz replacement vehicle, for 2:37 a.m. central time Saturday. Rosaviakosmos has agreed to delay the Soyuz docking to the station if additional time is required to resolve command and control problems aboard the station.

Mission managers will assess the need for that additional docked day of operations based on specific criteria, including a minimum of two fully functioning command and control computers, securing the Canadarm2 cradle pallet back in Endeavour's payload bay, successfully reloading software in Command and Control computer Three, and completing final transfer activities between the station and shuttle.

With another busy day behind them, the two crews were bid goodnight by Mission Control and will be awakened at 2:41 a.m. Saturday. Both spacecraft are in good condition, orbiting the Earth every 92 minutes.

As Pilot Jeff Ashby slowly backed Endeavour away, Commander Kent Rominger and Expedition Two flight engineer Susan Helms exchanged final wishes for Endeavour's planned return to Earth, and a continued safe journey for the station crew. Once Endeavour was at a distance of 450 feet from the station, Ashby initiated a three-quarter circle flyaround of the station as Mission Specialist Yuri Lonchakov activated a large-format IMAX camera in Endeavour's payload bay to photograph the station.

At 1:28 p.m., with the flyaround complete, Ashby fired a separation burn, initiating Endeavour's final departure from the orbiting complex, now equipped with a new Canadian-built robotic arm and communications antenna, installed by Mission Specialists Scott Parazynski and Chris Hadfield during two space walks. During eight days of joint operations, the two crews also transferred more than three tons of supplies, equipment and scientific experiments to the station.

On board the station, the Expedition Two crew - Commander Yury Usachev and Flight Engineers Jim Voss and Helms - will enjoy some time off this afternoon following a busy week on orbit. Early Monday morning, they will support the docking of a replacement Soyuz spacecraft that will serve as the station's "lifeboat." The Soyuz and its crew of three - Commander Talgat Musabayev, Flight Engineer Yuri Baturin and American businessman Dennis Tito -- is scheduled to dock at 2:52 a.m. Monday.

Endeavour's crew will go to sleep shortly after 4:30 p.m. today, awakening at 1:41 a.m. Monday to begin what should be their final full day on orbit. Endeavour is scheduled to return to the Kennedy Space Center, weather permitting, at 8:03 a.m. Tuesday. The primary activity for the crew on Monday will center on Endeavour's return to Earth, with Rominger, Ashby and Flight Engineer John Phillips verifying the performance of Endeavour's flight control surfaces and steering jets. Hadfield, Parazynski, Lonchakov and Umberto Guidoni will begin stowing away much of the equipment the crew has used over the past 11 days on orbit. All seven crew members are scheduled to participate in a press conference, talking with media in the U.S., Canada and Italy, at 10:01 a.m. Monday.

The Soyuz has a lifetime on orbit of about six months. The crew of the Soyuz which docked today, commander Talgat Musabayev, Flight Engineer Yuri Baturin and American businessman Dennis Tito, will return to Earth aboard the Soyuz capsule that launched the Expedition One crew to the station last Oct. 31. That Soyuz has been at the station since it docked there Nov. 2.

When this morning's docking occurred, the shuttle Endeavour was about 78 statute miles ahead of the space station. Its seven crewmembers will spend today preparing for its return to Earth. Landing is scheduled for 8:04 a.m. CDT Tuesday at Kennedy Space Center in Florida. Endeavour crewmembers were awakened at 12:41 a.m. by music from the soundtrack of the movie Gladiator.

Today, shuttle Commander Kent Rominger, Pilot Jeff Ashby and Flight Engineer John Phillips will test Endeavour's flight control surfaces and steering jets. Canadian astronaut Chris Hadfield, mission specialist Scott Parazynski, cosmonaut Yuri Lonchakov and European Space Agency astronaut Umberto Guidoni will stow away much of the equipment the crew has used over the past 11 days in space. All seven crewmembers are also scheduled to participate in a press conference with media in the U.S., Canada and Italy at 10:01 a.m.

Endeavour accomplished all of its major mission goals during the eight days it was docked to the space station. Parazynski and Hadfield installed and helped test a new Canadian-built robotic arm on the space station during two spacewalks that lasted a total of 14 hours and 50 minutes. Hadfield made history on that first space walk by becoming the first Canadian astronaut to ever walk in space. Working with the station's Expedition Two crew, Russian Commander Yury Usachev and astronauts Jim Voss and Susan Helms, they transferred more than three tons of supplies, equipment and scientific experiments to the station, then repacked 1,600 pounds of equipment that was no longer needed aboard the station.

Space station flight controllers were successful overnight in reformatting the hard drive on new Command and Control (C&C) Computer One, which was originally a payload computer. Controllers then copied all the software from the prime C&C 2, to the C&C 1 hard drive. After more testing later today, the station's three C&Cs will have two hard drives that contain all the necessary software to run the station's systems.

Mission Specialists Chris Hadfield, Scott Parazynski, Yuri Lonchakov and Umberto Guidoni stowed away much of the equipment the crew has used over the past 11 days in space. All seven crew members also were scheduled for some time off today to relax. Preliminary forecasts at the three-mile long Shuttle Landing Facility in Florida are not promising for tomorrow's opportunities, with the possibility of rain and high winds in the area. The back-up landing site at Edwards Air Force Base in California has been called up to provide Entry Flight Director LeRoy Cain and his team of flight controllers with additional options in returning Endeavour to Earth. There are two opportunities for Endeavour to return to the Kennedy Space Center tomorrow. The first would see a deorbit burn to slow Endeavour down and drop it out of orbit, occuring at 6:55 a.m., with landing to follow at 8:04 a.m. Central time. There is a second opportunity one orbit later with a deorbit burn at 8:31 a.m. resulting in a 9:39 a.m. landing. There are also two opportunities to land at Edwards Air Force Base tomorrow, at 11:11 a.m. and 12:47 p.m. respectively. Throughout the night, flight controllers will continue to look at weather conditions at both landing sites formulating plans to bring Endeavour home. Endeavour's crew is scheduled to be awakened at 11:41 p.m. today and will begin preparations for their possible return trip home shortly after 3 a.m. tomorrow. In the meantime, with the arrival of the three-member Soyuz taxi crew, the first activity on board the International Space Station today was an extensive safety briefing conducted by Expedition Two Commander Yury Usachev. The briefing included familiarizing the crew with station systems and evacuation routes. Crew members then swapped their custom-fitted Soyuz seatliners from one vehicle to another, and transferred some cargo from Soyuz to the station, setting up a plasma crystal experiment.

With continuing cloud cover, rain showers and gusty winds at the Kennedy Space Center, Entry Flight Director LeRoy Cain waved off landing opportunities there and elected to return to the West Coast where weather conditions were perfect for today's landing. Today's landing was the 48th at Edwards Air Force Base in shuttle program history.

Endeavour's crew - Commander Kent Rominger, Pilot Jeff Ashby and Mission Specialists Scott Parazynski, Chris Hadfield, John Phillips, Yuri Lonchakov and Umberto Guidoni - is expected to remain overnight in California, returning to Houston Wednesday afternoon.

During 11 days on orbit, eight of which were spent in joint operations with the International Space Station crew, Endeavour's crew installed a new robotic arm called Canadarm2, and transferred more than 6,000 pounds of equipment, experiments and supplies between vehicles.

A public welcome home ceremony for the crew is slated for 4 p.m. at Hangar 990 at NASA's Ellington Field.

Two opportunities to land at Edwards are available today. For the first, the deorbit burn would occur at 10:03 a.m. central time with landing at 11:11 a.m. The second would see a deorbit burn at 11:39 a.m. and touchdown at 12:47 p.m. Forecasters said weather at Edwards is ideal. Endeavour, which was launched April 19, brought an advanced and more powerful robotic arm, Canadarm2, to the International Space Station. The shuttle also delivered to the station more than 6,000 pounds of equipment and supplies, much of it transported in the Italian-built Multipurpose Logistics Module named Raffaello. Among equipment aboard Raffaello were two new scientific experiment racks for the space station's U.S. laboratory Destiny. Endeavour's crew, Commander Kent Rominger, Pilot Jeff Ashby and Mission Specialists Chris Hadfield of the Canadian Space Agency, John Phillips, Scott Parazynski, Umberto Guidoni of the European Space Agency and Cosmonaut Yuri Lonchakov, were awakened at 11:48 p.m. by "Truth," performed by Spandau Ballet. The wakeup music was for Rominger, requested by his family.

The first opportunity of the day to land Endeavour at the Florida spaceport has already been passed up and flight controllers continue to plan for a landing on the second and final opportunity at Kennedy today. But spacecraft communicators told Endeavour's crewmembers that if a second Florida waveoff occurs, they likely would land at Edwards later today. Two opportunities to land at Edwards are available today. For the first, the deorbit burn would occur at 10:03 a.m. central time with landing at 11:11 a.m. The second would see a deorbit burn at 11:39 a.m. and touchdown at 12:47 p.m. Forecasters said weather at Edwards is ideal. Endeavour, which was launched April 19, brought an advanced and more powerful robotic arm, Canadarm2, to the International Space Station. The shuttle also delivered to the station more than 6,000 pounds of equipment and supplies, much of it transported in the Italian-built Multi-Purpose Logistics Module named Raffaello. Among equipment aboard Raffaello were two new scientific experiment racks for the space station's U.S. laboratory Destiny. Endeavour's crew, Commander Kent Rominger, Pilot Jeff Ashby and Mission Specialists Chris Hadfield of the Canadian Space Agency, John Phillips, Scott Parazynski, Umberto Guidoni of the European Space Agency and Cosmonaut Yuri Lonchakov, were awakened at 11:48 p.m. by "Truth," performed by Spandau Ballet. The wakeup music was for Rominger, requested by his family.

• Orbiter Docking System - Bay 1-2 - 1800 kg
• Spacesuit EMU 3004 - 130 kg
• Spacesuit EMU 3003 - 130 kg
• Station Power Distribution Unit SPDU - Bay 3P - 100 kg
• Fixture for return of S-band Antenna - SASA FSE - Bay 3P - 4S - 100 kg
• Power/Data Grapple Fixture for Node-2 - PDGF - Bay 5P - 50 kg
• Main Bus Switching Unit - MBSU - Bay 6S - 238 kg
• MBSU adapter - Bay 6S - 122 kg
• Station Power Distribution Unit - SPDU - Bay 6S - 7P - 100 kg
• Node-2 Harmony module - Bays 8-12 - 14,300 kg
• OBSS 203 - Sill 450 kg
• RMS 301 - Sill 410 kg

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