Cockrell Credit - www.spacefacts.de

Personal: Male, Married, Two children. Born in Austin, Texas, USA.

Astronaut Career

Astronaut Group: NASA Group 13 - 1990. Active Entered space service: 17 January 1990. Number of Flights: 5.00. Total Time: 64.52 days.

NAME: Kenneth D. Cockrell (Mr.)

NASA Astronaut

PERSONAL DATA:

Born April 9, 1950, in Austin, Texas. Married to the former Joan Denice Raines of Houston, Texas. Two children. He enjoys sport flying, snow skiing, water skiing, tennis. His parents, Dale and Jewell Cockrell, reside in Westminster, South Carolina. Her parents, Leon and Rosemary Raines, reside in Houston.

EDUCATION:

Graduated from Rockdale High School, Rockdale, Texas, in 1968; received a bachelor of science degree in mechanical engineering from University of Texas in 1972, and a master of science degree in aeronautical systems from the University of West Florida in 1974.

ORGANIZATIONS:

Member, Society of Experimental Test Pilots (SETP), and Association of Space Explorers (ASE).

SPECIAL HONORS:

Awarded the Armed Forces Meritorious Service Medal, the Navy Commendation Medal, the Armed Forces Expeditionary Medal, and the Humanitarian Service Medal. Received the Alcoa Foundation Scholarship upon graduating from high school.

EXPERIENCE:

Cockrell received his commission through the Naval Aviation Reserve Officer Candidate Program at Naval Air Station Pensacola, Florida, in December 1972. He was designated a naval aviator in August 1974 at Naval Air Station Pensacola. Following type training in the A-7 aircraft, he flew the Corsair II from 1975 to 1978 aboard the USS Midway in the Western Pacific and Indian Oceans. In 1978 he reported to the United States Naval Test Pilot School at Patuxent River, Maryland. After graduation in 1979, he remained at the Naval Air Test Center conducting a variety of flight tests on the A-4, A-7, F-4, and F/A-18 aircraft through mid-1982. He then reported to Naval Station, San Diego, for duty as a staff officer for the Commander of the USS Ranger and subsequently the USS Kitty Hawk Battle Groups. Cockrell was then assigned as a pilot in an operational F/A-18 squadron and made two cruises on the USS Constellation in 1985 and 1987. He resigned his commission in 1987 and accepted a position at the Aircraft Operations Division of the Johnson Space Center. Cockrell is a captain in the United States Naval Reserve. He has logged over 6,300 flying hours and 650 carrier landings.

NASA EXPERIENCE:

From November 1987 to July 1990, Cockrell worked as an aerospace engineer and research pilot at Ellington Field, Houston. He was an instructor pilot and functional check pilot in NASA T-38 aircraft. He conducted air sampling and other high altitude research while piloting the WB-57 and was an aircraft commander in the Gulfstream I administrative transport aircraft.

Selected by NASA in January 1990, Cockrell became an astronaut in July 1991. He is qualified for assignment as a pilot on future Space Shuttle flight crews. His technical assignments to date include: duties in the Astronaut Office Operations Development Branch, working on landing, rollout, tires and brakes issues; CAPCOM in Mission Control for ascent and entry; Astronaut Office representative for Flight Data File, the numerous books of procedures carried aboard Shuttle flights. He served as Assistant to the Chief of the Astronaut Office for Shuttle operations and hardware, and has served as Chief of the Astronaut Office Operations Development Branch. A veteran of three space flights, he has logged over 906 hours in space. He flew on STS-56 in 1993, STS-69 in 1995, and STS-80 in 1996. Cockrell is currently acting Deputy Chief of the Astronaut Office.

Cockrell flew as a mission specialist on the crew of STS-56, carrying ATLAS-2. During the nine-day mission the crew of Discovery conducted atmospheric and solar studies in order to better understand the effect of solar activity on the Earth's climate and environment. STS-56 launched April 8, 1993, and landed April 17, 1993. Mission duration was 9 days, 6 hours, 9 minutes, 21 seconds.

Cockrell next served as pilot on STS-69, September 7-18, 1995. The primary objective of the mission was the successful deployment and retrieval of a SPARTAN satellite and the Wake Shield Facility (WSF). The WSF is designed to evaluate the effectiveness of using this free-flying experiment to grow semiconductors, high temperature superconductors and other materials using the ultra-high vacuum created behind the spacecraft near the experiment package. Mission duration was 10 days, 20 hours, 28 minutes.

Most recently, Cockrell commanded the STS-80 mission (November 19 to December 7, 1996) aboard Columbia. During the flight the crew deployed and retrieved the Wake Shield Facility (WSF) and the Orbiting Retrievable Far and Extreme Ultraviolet Spectrometer (ORFEUS) satellites. The WSF is designed to fly free of the Shuttle, creating a super vacuum in its wake in which to grow thin film wafers for use in semiconductors and other high-tech electrical components. The ORFEUS instruments, mounted on the reusable Shuttle Pallet Satellite, will study the origin and makeup of stars. Mission duration was a record breaking 17 days, 15 hours, 53 minutes.

• 8 April 1993 Flight: STS-56. Flight Up: STS-56. Flight Back: STS-56. Flight Time: 9.26 days.

• 7 September 1995 Flight: STS-69. Flight Up: STS-69. Flight Back: STS-69. Flight Time: 10.85 days.

• 19 November 1996 Flight: STS-80. Flight Up: STS-80. Flight Back: STS-80. Flight Time: 17.66 days.

• 7 February 2001 Flight: STS-98. Flight Up: STS-98. Flight Back: STS-98. Flight Time: 12.89 days.

• 5 June 2002 Flight: STS-111. Flight Up: STS-111. Flight Back: STS-111. Flight Time: 13.86 days.

17 January 1990 - NASA Astronaut Training Group 13 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.. Reported to the Johnson Space Center in late July 1990 to begin their year long training. Chosen from 1945 qualified applicants, then 106 finalists screened between September and November 1989.

Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev conducted biomedical and engineering experiments, Station systems maintenance and exercise this week, reporting that everything is proceeding smoothly more than halfway through their stay aboard the ISS.

The only technical issue being addressed by Russian flight controllers involves a minor problem with battery three in the Zvezda Service Module, which was temporarily taken offline to enable Krikalev to check connector pins from the battery itself to a current converter unit behind one of the panels in the Station's living quarters. The battery experienced a small drop in current flow, but has no impact on Station operations. All other batteries in Zvezda and the Zarya module are functioning normally as they draw power from the U.S. P6 solar arrays mounted on top of the Station's Unity module. The huge U.S. solar arrays are providing more than ample power for all Station systems.

Because the sun is shining obliquely to the Russian module solar arrays this week due to its angle relative to the Earth, Russian controllers decided to reduce the power output of the Elektron oxygen generation system in Zvezda to conserve electricity. One or two solid fuel oxygen generation canisters will be activated today and tomorrow to augment the output of oxygen on board the ISS until the Elektron is returned to full power Friday when the sun is in a more favorable angle to the solar arrays of both Zvezda and Zarya. All environmental systems on the ISS are functioning normally.

Later this week, Shepherd, Gidzenko and Krikalev will review flight plans for the upcoming mission of Atlantis to the ISS to deliver the U.S. Laboratory Destiny, the cornerstone of scientific research for years to come on the Station. Today, Atlantis was transported to Launch Pad 39-A at the Kennedy Space Center for final prelaunch preparations leading to liftoff in about three weeks on the first Shuttle mission of 2001.

Atlantis' five astronauts, Commander Ken Cockrell, Pilot Mark Polansky and Mission Specialists Bob Curbeam, Marsha Ivins and Tom Jones will conduct a variety of countdown dress rehearsal procedures later this week at the Cape, culminating in a simulated launch countdown Saturday morning with the crew on board the Shuttle.

Launch of Atlantis to bring Destiny to the ISS is targeted for no earlier than January 19. Next week, NASA Shuttle and ISS managers will hold their traditional Flight Readiness Review to set a firm launch date for Atlantis' mission to the Station.

The International Space Station continues to operate in excellent shape as it orbits the Earth every 90 minutes at an altitude of 230 statute miles.

Shuttle and station managers selected the target launch date following Wednesday's traditional Flight Readiness Review to assess the readiness of the shuttle, station, crew, payloads and flight control teams. Based on a Friday early morning launch, Atlantis is scheduled to dock to the ISS just before 9 p.m. Eastern on January 20.

In preparation for the shuttle's arrival, Expedition One Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev conducted a thorough inventory of items onboard and began stowing equipment and supplies to clear passageways that will be used by the two crews throughout the seven days of joint operations.

Remaining work for the Expedition One crew in preparing for Atlantis' arrival includes reviewing documentation for the laboratory's activation, conferences with various technical specialists and the STS-98 crew, and a mid-tour debrief with flight controllers.

Destiny's attachment and activation is the highlight of the 11-day mission along with the relocation of a shuttle docking port and three spacewalks designed to complete final connections between the laboratory, docking port and the station. The third spacewalk will mark the 100th in U.S. spacewalk history and the 60th based out of the shuttle.

In preparation for the relocation of the shuttle docking port, known as Pressurized Mating Adapter 2, flight controllers in Houston attempted to cycle four latches on the Common Berthing Mechanism to which the PMA currently is attached. The first latch cycled properly, but the second apparently was obstructed by a piece of the air ducting used to circulate air throughout the station while a shuttle is docked. Shepherd visibly detected the obstruction and a plan is in place to pressurize the volume of the PMA so that he can float in, move the vent and watch as flight controllers cycle the latch once again. This procedure sets the stage for the removal of the PMA to free the location for Destiny's installation.

The only technical issue on the station at present is an apparent faulty current converter unit on one of eight batteries inside the Zvezda module. It has no impact on the station's electrical generation capability, especially in light of the ample power available from the solar arrays installed on the STS-97 mission of Discovery in December. All station life support systems are working fine.

Atlantis' five astronauts, Commander Ken Cockrell, Pilot Mark Polansky and Mission Specialists Bob Curbeam, Marsha Ivins and Tom Jones conducted a countdown dress rehearsal last weekend as technicians were installing the Destiny lab in its payload bay at Launch Complex 39B.

The International Space Station continues to operate in excellent shape as it orbits the Earth every 90 minutes at an altitude of 230 statute miles.

Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev spent the last week reinstating the use of all eight batteries inside the Zvezda module by replacing a faulty current converter unit.

Meanwhile the crew pressurized and entered the shuttle docking port that will be repositioned on the next mission and moved an air duct that was obstructing the full motion of one of four berthing latches. Once the duct was moved, the latch was cycled without problem and is ready for the removal of the docking port in preparation for the installation of Destiny. The docking port then will be relocated to the opposite end of the laboratory.

For the next week, the Expedition One crew will continue to conduct a thorough inventory of items onboard and stow equipment and supplies. The three crew members also will review documentation for the laboratory's activation, practice for an emergency departure similar to building fire drills, and take part in conferences with various technical specialists.

Shuttle managers ordered the rollback of Atlantis off the launch pad so that inspections can be made to cables inside a tray on the Solid Rocket Boosters. Destiny was removed from the payload bay today and will remain in a protective room on the launch pad until Atlantis returns next week.

Launch of Atlantis on the 102nd shuttle flight now is scheduled for no earlier than Feb. 6. Liftoff is tentatively set for 5:37 p.m. CST (2337 GMT). Docking to the station will occur just after Noon on Feb. 8.

Destiny will provide the orbiting outpost with its first science facility. Its attachment and activation is the highlight of the 11-day mission along with the relocation of the shuttle docking port. Three space walks will complete final connections between the laboratory, docking port and the station. The third space walk marks the 100th in U.S. Space walk history and the 60th based out of the shuttle.

Atlantis' five astronauts, Commander Ken Cockrell, Pilot Mark Polansky and Mission Specialists Bob Curbeam, Marsha Ivins and Tom Jones will spend the next two weeks reviewing their official Flight Data File before flying to the Kennedy Space Center for the final days of the countdown.

International Space Station systems are in excellent shape orbiting the Earth every 90 minutes at an altitude of approximately 230 statute miles.

Following the shuttle's return to the launch pad, the U.S. Laboratory Destiny was installed in the payload bay Tuesday and the doors closed for flight last night. Atlantis' launch remains scheduled for 6:11 p.m. EST, Feb. 7. The STS-98 flight crew of Commander Ken Cockrell, Pilot Mark Polansky and Mission Specialists Tom Jones, Marsha Ivins and Bob Curbeam are scheduled to fly to the Kennedy Space Center Sunday afternoon with the countdown scheduled to begin at 10 p.m. EST.

Meanwhile aboard the station, the Expedition One crew of Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev continue the task of preparing for the shuttle's arrival while continuing their daily routine of exercise and housekeeping chores.

Troubleshooting efforts on a vibration measuring experiment paid off late last week when Expedition One Commander Bill Shepherd recovered the operation of the Middeck Active Control Experiment (MACE). The experiment appears to be working fine and timeliners are busily searching for openings in the crew's long-range plan to accommodate further operations with this experiment that originally flew as a shuttle payload to measure tiny amounts of vibration in an effort to identify how normal activity onboard may affect sensitive experiments.

Flight controllers plan to conduct an experiment to measure the electrical charging on the outside of the station by strategically positioning the large U.S. solar arrays as the station circles the Earth. The hopes are to correlate the array position with the amount of arcing that may be generated. Plasma Contactor Units on the station are designed to eliminating the arcing, if present. This Detailed Test Objective is designed to gather additional information that will help verify engineering models and/or refine future planning that may be required.

Additionally, the crew and flight controllers are planning to conduct a dry-run of the procedures for the shuttle docking to the ISS planned for two days after launch.

Plans for the crew and flight controllers may include a test of station procedures that will be used for the docking of the Space Shuttle Atlantis.

Orbiting the Earth at an average altitude of 230 statute miles, the International Space Station is operating in excellent condition.

Commander Ken Cockrell, Pilot Mark Polansky and Mission Specialists Bob Curbeam, Marsha Ivins and Tom Jones rocketed away from Launch Pad 39-A at 5:13p.m. Central time, lighting up the central Florida skies as they began their pursuit of the international complex. The launch was delayed by about two minutes while ground controllers resolved a false reading from a sensor in a data relay unit on the Shuttle. Atlantis' flight is the 102nd Space Shuttle mission.

At the time of launch, the three Expedition One crewmembers aboard the ISS were passing over the north Atlantic due east of St. John's, Newfoundland, about 1,500 statute miles ahead of Atlantis. They were notified of the launch minutes after Atlantis reached orbit by Spacecraft Communicator Dan Burbank in Mission Control, and a video of the launch was transmitted to the crew. Expedition Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev will be awakened shortly after 4 a.m. Central time Thursday, their 100th day in space, a little over an hour before an unmanned Progress resupply vehicle is scheduled to be undocked from the ISS at around 5:25 a.m. The Progress undocking will clear the way for Atlantis to link up to the station on Friday. The Progress will be commanded into a destructive deorbit several hours after undocking.

Less than nine minutes after liftoff, Atlantis' astronauts went to work to prepare the Shuttle's systems for their planned 11-day mission. The first major task on the flight plan was to open Atlantis' cargo bay doors prior to receiving a "go" for orbital operations from Ascent Flight Director LeRoy Cain. The astronauts are expected to set up computers and flight deck gear before beginning an eight-hour sleep period at 10:11 p.m. Central time. The Shuttle crew will be awakened at 6:11 a.m. Friday to begin its first full day in space.

With this evening's successful launch behind them, Atlantis' astronauts will turn their attention to their chase of the International Space Station, performing several firings of the ship's jet thrusters over the next two days to set up a docking with the outpost on Friday just before 11 a.m. Over the ensuing week, the crew will perform three space walks as they help to install and hook up the 16-ton Destiny research lab.

More than two thousand miles ahead, the three-member space station crew -- passing their 100th day in space - watched early this morning as ground controllers commanded a Progress cargo craft to undock from the outpost, clearing the way for Atlantis' arrival. A few hours after the undocking, the Progress craft, filled with trash, descended into the atmosphere and was destroyed. Atlantis is planned to dock with the station at about 10:50 a.m. Central Friday.

Aboard Atlantis, astronauts Tom Jones and Bob Curbeam checked out the spacesuits they will wear for three spacewalks during the next week to finalize connections between the new laboratory and the station. The crew found the suits in good shape, but noted a preliminary indication of a possible oxygen tank leak in a third, spare spacesuit aboard the shuttle. Later, more precise checks of the spare suit showed that the preliminary finding was likely false. The spare suit is usable as well if needed. As suit checks were conducted on the lower deck of Atlantis, on the upper deck Astronaut Marsha Ivins powered up the shuttle's robotic arm and surveyed the cargo bay, finding everything in good shape. The arm will be used to lift the Destiny lab out of the shuttle bay on Saturday and maneuver it into position to attach to the station. Ivins also checked alignment aids and cameras that she will use to precisely maneuver the 28-foot long module.

Periodically, Commander Ken Cockrell and Polansky fired Atlantis' thrusters to adjust the rate at which the shuttle is closing in on the International Space Station, maintaining a course toward Friday's docking. At present, Atlantis is about 950 statute miles behind the station, moving about 110 miles closer with each orbit of Earth. Atlantis is in a 227 by 192 statute mile orbit. The International Space Station is in a 229 by 214 statute mile orbit. Atlantis and the station crew will go to sleep at 8:13 p.m. Central today. Atlantis' crew will awaken at 4:13 a.m. Friday, and the station crew will awaken at 4:43 a.m.

Both spacecraft are in excellent condition, ready for tomorrow's combined activities. The final phase of the rendezvous will begin with a terminal intercept engine firing by Atlantis at 8:24 a.m. Central, when the shuttle is about nine statute miles behind the station. Cockrell will take manual control of Atlantis' approach to the station at about 9:45 a.m., about a half-mile from the complex. After the 10:50 a.m. docking, the two crews will perform leak checks and open hatches between the spacecraft at 12:43 p.m.

The first full day in orbit for Astronauts Ken Cockrell, Polansky, Marsha Ivins, Tom Jones and Bob Curbeam will focus on preparations for the unberthing and installation of the Destiny laboratory to the International Space Station. Ivins and Cockrell will check out the 50-foot long robotic arm, and conduct a camera survey of the payload bay with the 16-ton Destiny laboratory housed inside. Curbeam and Jones, with assistance from Polansky, will test the space suits they will wear during three scheduled space walks, the first of which is planned for Saturday as Ivins uses the ship's robot arm to install Destiny onto the Unity module of the Station.

Cockrell and Polansky will command a series of engine firings to refine Atlantis' approach to the station, positioning themselves for a Friday morning docking, just before 11 a.m. Central time.

On board the station, the Expedition One crew - Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev - awoke just after 4 a.m. to mark its 100th day in orbit. From on board they kept tabs as an unmanned Progress resupply spacecraft, loaded with trash, undocked from the station at 5:26 a.m. Central time as the Station flew high over Asia. A series of engine firings on the Progress slowly increased the distance between the two vehicles. Just before 11 a.m., the Progress will be commanded to deorbit, causing it to burn up as it reenters the Earth's atmosphere.

Today the Expedition One crew will review its plans for joint operations with Atlantis' crew following docking Friday morning, perform some basic housekeeping tasks, and enjoy a regularly-scheduled exercise session.

Atlantis' crew will conduct a series of interviews with media representatives just after 4 p.m. this afternoon. The first Mission Status Briefing of the flight is planned for 5:30 p.m. on NASA Television.

With the U.S. Laboratory Destiny operating in excellent shape as the newest addition to the International Space Station, Commander Ken Cockrell, Pilot Mark Polansky and Mission Specialists Bob Curbeam, Marsha Ivins and Tom Jones began to perform a series of procedures which will lead to the firing of the Shuttle's braking rockets late this morning to begin their hour-long reentry back to Earth.

There are two landing opportunities available today for Atlantis' return to Florida. The first begins with a deorbit firing of the Shuttle's orbital maneuvering system engines on Orbit 169 at 10:47 a.m. Central time, culminating in a landing at 11:53 a.m. Central time on Runway 33 at the Kennedy Space Center. A backup opportunity one orbit later starts with a deorbit burn at 12:22 p.m., resulting in a 1:28 p.m. Central time landing. Weather forecasts for today are generally favorable with flight controllers watching the possibility of gusty winds in the vicinity of the Shuttle Landing Facility at the Cape. The backup landing site at Edwards Air Force Base, California was not called up for landing support today, but likely would be activated for backup landing support Monday if Atlantis' landing is blocked by the weather.

A landing on the first opportunity of the day would wrap up a journey of 4.4 million miles for the astronauts and the first Shuttle mission of the year.

Atlantis' astronauts begin their deorbit preparations at 6:50 a.m. today, configuring computers for reentry, deactivating the galley and installing seats on the flight deck and middeck. The payload bay doors should be closed at 8:07 a.m., and a final "go-no go" decision for the deorbit burn from Entry Flight Director Leroy Cain is expected about 10:30 a.m.

When Atlantis' astronauts were awakened at 3:43 a.m. today, they were approximately 408 statute miles in front of the International Space Station. On board the Station, Expedition One Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev will relax today as they enjoy another day of light activities. The Expedition One crew began its day at Midnight this morning and will go to sleep about 3:30 p.m. This is the 110th day in space for the Expedition One crew and its 108th day aboard the orbiting outpost.

Atlantis continues to orbit the Earth in excellent shape at an altitude of 237 statute miles as its astronauts gear up for landing.

Commander Ken Cockrell, Pilot Mark Polansky and Mission Specialists Bob Curbeam, Marsha Ivins and Tom Jones were ordered to stay in orbit for an extra day after Entry Flight Director LeRoy Cain concluded that crosswinds at the 3-mile long Shuttle Landing Facility were out of limits despite crystal clear skies. Atlantis' crew had only two opportunities today in which to return to Earth.

The astronauts closed the Shuttle's cargo bay doors just after 8 a.m. Central time this morning as Cain and his team of flight controllers closely monitored the winds in Florida. Chief Astronaut Charlie Precourt provided real-time observations as he flew the Shuttle Training Aircraft over the landing strip, a Gulfstream jet modified to mimic the landing characteristics of Atlantis.

Throughout the morning, winds were observed to be gusting in excess of the 15 knot crosswind limit for a daytime landing, and at 11:47 a.m. Central time, Cain called off today's landing efforts. Word of the waveoff was radioed up to Cockrell by Spacecraft Communicator Scott Altman in Mission Control.

Atlantis will have two opportunities again tomorrow in which to land at the Kennedy Space Center. The first, on orbit 185, calls for a firing of Atlantis' braking rockets at 11:21 a.m. Central time with a landing on KSC's Shuttle runway at 12:27 p.m. Central time. Atlantis' cargo bay doors would be closed at around 8:40 a.m. Monday in preparation for that first landing opportunity. A backup opportunity is also available on the following orbit, with a deorbit firing of the orbital maneuvering system engines at 12:57 p.m. Central time and a landing at 2:03 p.m. Central time. The weather forecast for the Cape tomorrow is promising, with only scattered clouds, a possibility of one deck of broken clouds, and somewhat lighter winds which are predicted to be acceptable for landing.

The backup landing site at California's Edwards Air Force Base is forecast to have unacceptable weather, with broken clouds, high winds and a chance of showers.

Shortly after today's landing attempts were called off, Atlantis' astronauts reopened the Shuttle's payload bay doors and removed their launch and entry suits to begin their bonus day in space. The astronauts will begin an eight-hour sleep period at 7:43 p.m. Central time tonight and will be awakened at 3:43 a.m. Monday to begin their pre-landing preparations.

Atlantis continues to orbit the Earth in excellent shape, completing an orbit of the Earth every 90 minutes at an altitude of 237 statute miles.

Aboard the International Space Station, Expedition One Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev spent a relaxing day off aboard the orbital outpost and will enjoy an off-duty day again on Monday.

As was the case on Sunday, flight controllers tried to bring Commander Ken Cockrell, Pilot Mark Polansky and Mission Specialists Bob Curbeam, Marsha Ivins and Tom Jones home during two landing opportunities which were available at the Florida spaceport, but winds continued to gust out of limits, higher than the 15- knot crosswind limit permissible for a Shuttle landing. Weather at the backup landing site at Edwards Air Force Base, California was also unacceptable with high winds and rainshowers in the area of the Mojave Desert.

Finally, at 12:13 p.m. Central time, Entry Flight Director LeRoy Cain called off today's landing attempts and directed his team to try to bring Atlantis home on Tuesday to KSC when the forecast calls for slightly improved weather and lighter winds. There are two landing opportunities at the Kennedy Space Center on Tuesday with the first opportunity calling for the firing of Atlantis' braking rockets on orbit 200 at 10:20 a.m. Central time, resulting in a landing at the Cape at 11:27 a.m. Central time. The second opportunity would begin with the deorbit burn maneuver on orbit 201 at 11:56 a.m. Central time and a landing at the Kennedy Space Center at 1:02 p.m. Central time.

Two landing opportunities also are available on the next two orbits at Edwards. The first of the Edwards' opportunities would call for the deorbit burn at 1:27 p.m. Central time and a landing at 2:33 p.m. Central time. The final opportunity of the day on Tuesday for Edwards would involve a deorbit burn at 3:04 p.m. Central time and a landing at 4:09 p.m. Central time. The weather at Edwards is also expected to be better, with a chance of broken cloud decks and lighter winds than were observed today.

Landing support will also be called up for the White Sands Space Harbor at Northrup Strip in New Mexico, which has three landing opportunities available, although all efforts will be made to try to bring Atlantis home in either Florida or California. After reopening Atlantis' cargo bay doors, the astronauts removed their launch and entry suits and will spend the rest of the day relaxing. They are scheduled to begin an eight-hour sleep period at 7:13 p.m. Central time tonight and will be awakened at 3:13 a.m. Tuesday to resume landing preparations.

Aboard the International Space Station, Expedition One Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev wrapped up an extended weekend in which they relaxed in preparation for a busy week of work which begins Tuesday with the continuing activation of systems in the newly installed Destiny laboratory. The crew will also prepare for the undocking and redocking of its Soyuz vehicle Saturday from the aft end of the Zvezda module to the nadir port of the Zarya module, in anticipation of the arrival of an unmanned Progress resupply ship at the Station at the end of the month.

Atlantis is orbiting the Earth in excellent shape at an altitude of 237 statute miles.

Atlantis has two opportunities today for a landing at the Kennedy Space Center. The first, on orbit 185, calls for a firing of Atlantis' braking rockets at 11:21 a.m. Central time with a landing on KSC's Shuttle runway 3-3 at 12:27 p.m. Central time. Atlantis' cargo bay doors would be closed at around 8:40 a.m. this morning in preparation for that first landing opportunity. A backup opportunity is also available on the following orbit, with a deorbit firing of the orbital maneuvering system engines at 12:57 p.m. Central time and a landing at 2:03 p.m. Central time. There are also two landing opportunities on the following orbits at the backup landing site for Atlantis at California's Edwards Air Force Base, which was activated for landing support. But gusty winds, low clouds and the chance of rain showers both today and tomorrow make Edwards a highly unlikely possibility for flight controllers to consider.

Entry Flight Director LeRoy Cain will receive weather updates throughout the day from the Spaceflight Meteorology Group here at the Johnson Space Center and Chief Astronaut Charlie Precourt, who will be flying weather reconnaissance at the landing strip in a training jet modified to mimic the Shuttle's landing characteristics. A final "go-no go" decision for the deorbit burn for the first landing opportunity is expected around 11 a.m. Central time.

Commander Ken Cockrell, Pilot Mark Polansky and Mission Specialists Bob Curbeam, Marsha Ivins and Tom Jones were awakened just after 4 a.m. Central time today to prepare once again for landing.

At the time of crew wakeup on board Atlantis, the Shuttle was about 750 statute miles in front of the International Space Station. The Expedition One crewmembers, Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev, are enjoying a final day of light duty in their extended weekend before beginning their work week on Tuesday. That work will include preparations for the undocking, flyaround and redocking of their Soyuz capsule from the aft docking port of the Zvezda module to the nadir docking port of the Zarya module, clearing the way for the arrival of an unmanned Russian Progress resupply ship at the end of the month. The Soyuz relocation procedure is planned for early Saturday morning, U.S. time.

Atlantis continues to orbit the Earth in flawless fashion at an altitude of 235 statute miles.

With Commander Ken Cockrell at the controls, Atlantis darted through high clouds over the Mojave Desert test center touch down at 2:33 p.m. Central time on concrete runway 2-2. The landing was the 47th at Edwards to bring the 102nd flight in program history to a close.

Atlantis was diverted to California after broken clouds and precipitation formed over the landing strip at the Kennedy Space Center, preventing Atlantis from returning to the Florida spaceport in the two opportunities which were available today.

Instead, Entry Flight Director LeRoy Cain ordered Atlantis to land 3000 miles to the West at Edwards, where the weather was deemed acceptable for landing. Cockrell, Pilot Mark Polansky and Mission Specialists Bob Curbeam, Marsha Ivins and Tom Jones were greeted by high, thin clouds at Edwards, but they posed no problem for Cockrell as he took over manual control of Atlantis a few minutes prior to landing.

The astronauts were scheduled to leave the orbiter about an hour after landing and will spend the night at Edwards before returning to Houston Wednesday afternoon.

After high winds thwarted Atlantis' homecoming Sunday and Monday, Cockrell and Polansky finally fired the ship's braking rockets at 1:27 p.m. Central time for the start of the Shuttle's hour-long descent back to Earth. Thirty-four minutes later, Atlantis and its astronauts reached the fringes of Earth's atmosphere and the first tug of gravity at an altitude of 400,000 feet.

Atlantis soared over the Pacific Ocean and the southern California coast north of Los Angeles, its computers honing in on the desert runway at Edwards. About four minutes before landing, Atlantis heralded its arrival at the landing site with a pair of double sonic booms as it went subsonic. Atlantis kicked up a small cloud of dust as its main gear met the runway and rolled out to a smooth stop as more clouds gathered around the Edwards complex.

Meanwhile, aboard the International Space Station, Expedition One Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev spent the day activating additional systems in the recently delivered Destiny Laboratory and began preparations for Saturday's undocking and redocking of their Soyuz capsule from the aft docking port of the Zvezda module to the Earthward facing docking port of the Zarya module.

That relocation maneuver, which is scheduled to begin just after 4 a.m. Central time Saturday, will clear the Zvezda docking port for the arrival of an unmanned Progress resupply craft next week, delivering supplies for the next Expedition crew which will be launched on the Shuttle Discovery on March 8 on the STS-102 mission.

Atlantis' astronauts are scheduled to return to Houston Wednesday afternoon for a welcome home ceremony at Hangar 990 at Ellington Field near the Johnson Space Center at around 3:30 p.m. Central time.

The Kennedy Space Center remains the primary target for today's landing, with two opportunities to bring Atlantis and its crew home. The initial forecast for today shows generally acceptable conditions for landing, with a slight concern for some clouds produced by offshore sea breeze and possible crosswinds at the three-mile long landing strip. The first opportunity for the day would call for a deorbit burn at 10:21 a.m. Central time, resulting in a landing at 11:27 a.m. Central time. The second opportunity would begin with a deorbit burn at 11:56 a.m. Central time with a landing at 1:02 p.m.

Landing opportunities are also available on the following two orbits at the backup landing site at Edwards Air Force Base in California. Weather conditions on the West Coast are marginal, however, with the possibility of rain within 30 miles of the landing site. The first of the Edwards' opportunities would call for the deorbit burn at 1:27 p.m. Central time and a landing at 2:33 p.m. The final opportunity of the day to Edwards would involve a deorbit burn at 3:04 p.m. and a landing at 4:09 p.m.

The White Sands Space Harbor at Northrup Strip in New Mexico has three landing opportunities available as well, and may be considered as a possible landing site, although all efforts will focus on returning Atlantis either to Florida or California. Entry Flight Director LeRoy Cain intends to employ the three best opportunities of the day in an effort to bring the two-week flight to a close.

Atlantis has enough propellent and consumables to stay aloft until at least Wednesday, if necessary.

The STS-98 astronauts - Ken Cockrell, Mark Polansky, Bob Curbeam, Marsha Ivins and Tom Jones - were awakened at 3:13 a.m. to the sounds of "Should I Stay or Should I Go" by the Clash, as they prepared for their return trip to Earth.

Aboard the International Space Station, now about 1,100 miles behind Atlantis, Expedition One Commander Bill Shepherd, Pilot Yuri Gidzenko and Flight Engineer Sergei Krikalev started a busy work week today preparing for Saturday's relocation of their Soyuz vehicle. The crewmembers will deactivate key ISS systems early Saturday morning, then climb into their pressure suits to board the Soyuz capsule for a 40-minute maneuver in which the Soyuz will be undocked from its current location on the aft end of the Zvezda module and redocked to the nadir port of the Zarya module. That will make room for a Progress resupply vehicle due to arrive later this month.

All systems on board Atlantis are performing well and ready to support today's landing efforts as the orbiter continues to circle the Earth at an altitude of 237 statute miles.

Expedition 4 Commander Yury Onufrienko and astronauts Carl Walz and Dan Bursch were launched last Dec. 5 aboard Endeavour's STS-108 mission, and have been on the ISS since Dec. 7.

Endeavour is scheduled for launch on May 30. That would result in a docking with the station on June 1. Endeavour Commander Ken Cockrell, Pilot Paul Lockhart, and mission specialists Chang-Diaz and Perrin are bringing the Expedition 5 crew to the station. That crew is commanded by Valery Korzun and includes astronaut Peggy Whitson and cosmonaut Sergei Treschev.

The first two of the three spacewalks by Chang-Diaz and Perrin will focus on installation of a new Mobile Base System for the station's robotic arm, Canadarm2. It will allow the arm to move along the railroad-like tracks of station's main truss, eventually to reach a length of more than 350 feet. The third spacewalk is to change out the wrist roll joint of Canadarm2.

On Friday, Dan Bursch worked with the Biomass Production System, a plant growth experiment using wheat and a plant related to cabbage and radishes. Each crewmember was scheduled for an hour to pack personal possessions, as they have been for much of this week. On Thursday Walz and Bursch completed their final session with the PuFF (pulmonary function in flight) experiment, which looks at effects of microgravity on lung function.

Several experiments have been deactivated, including the Physics of Colloids in Space, which was shut down Tuesday and which will be returned to Earth on Endeavour. It is a study of fine particles suspended in a fluid. An example of such fluids is paint.

Major systems aboard the station continue to function well as the ISS orbits at an average altitude of about 243 statute miles.

• Bay 1-2: Orbiter Docking System - 1800 kg + 2 EMU spacesuits - 240 kg
• Bay 4: Mobile Base System (MBS) - 1600 kg. The Mobile Base System was made by MD Robotics of Brampton, Ontario. It was to be attached to the Mobile Transporter and used to mount the SSRMS Canadarm-2 arm and heavy payloads.
• Bay 6P: Adapter Beam / Wrist Roll Joint - 150 kg. The WRJ (Wrist Roll Joint) would be swapped with the broken one on the SSRMS arm.
• Bay 7-12: MPLM FM1 "Leonardo" - 10557 kg. The Leonardo module carried 8 Resupply Stowage Racks and 4 Resupply Stowage Plaftorms, with equipment to be transferred to the station. It also carried two science racks: the MSG (Microgravity Science Glovebox) and Express-3, which would be installed on Destiny. Leonardo, built by Alenia Spazio in Torino, also flew on STS-102 and STS-105.
• Bay 13P: ICAPC Beam / PGDF - 75 kg. The PGDF (Power-Data Grapple Fixture) would be installed on the P6 truss.
• Bay 13S: Adapter Beam / SMDP - 200 kg. The Service Module Debris Panels (SMDP) package contained 6 panels which would be stowed on PMA-1 until a later spacewalk attached them to the Zvezda module to protect it from space debris hits.
• Total: 14622 kg

Aboard Endeavour are Commander Ken Cockrell, Pilot Paul Lockhart, Mission Specialists Franklin Chang-Díaz and Philippe Perrin of the French Space Agency, CNES, along with Expedition 5 Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev. As Endeavour launched from Florida, the space station orbited 240 statute miles over the southern Indian Ocean west of Perth, Australia.

Aboard the ISS, Expedition 4 Commander Yury Onufrienko and Flight Engineers Carl Walz and Dan Bursch are wrapping up their 182nd day in space, their 180th day on the station. Walz and Bursch will break the U.S. record for the longest single space flight - 188 days - set by astronaut Shannon Lucid in 1996. Another record was equaled today as Chang-Díaz became only the second human to fly in space seven times, tying a mark set in April by Jerry Ross on the STS-110 mission.

Less than nine minutes after launch, Endeavour and its crewmembers settled into orbit and work began to prepare the shuttle for its planned 12-day mission.

Endeavour is scheduled to dock to the station Friday afternoon, setting the stage for the handover between the Expedition 4 and Expedition 5 station crews. Three spacewalks are scheduled during the mission by Chang-Díaz and Perrin. The first two will help install and activate the Mobile Base System, a platform that will be mated to the Mobile Transporter on the S-Zero (S0) Truss. The new platform will allow the station's Canadarm2 robotic arm to "walk off" the Destiny Laboratory onto the Mobile Base System so it can be transported up and down the length of the ISS for future assembly tasks. On the third spacewalk, Chang-Díaz and Perrin will replace a faulty wrist roll joint on the station's robotic arm that has experienced an electrical problem in one of its two data and power channels.

The shuttle crew will go to sleep at 10:23 p.m., and will be awakened at 6:23 a.m. Thursday to begin its first full day in orbit.

Aboard Endeavour, Commander Ken Cockrell, Pilot Paul Lockhart, Mission Specialists Philippe Perrin and Franklin Chang-Díaz and Expedition Five Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev, were awakened at 6:23 a.m. Central time by the song "Gettin' Jiggy Wit It," by Will Smith. The song was played for Korzun, who will soon take command of the space station.

The Expedition Four crewmembers - Commander Yury Onufrienko and Flight Engineers Carl Walz and Dan Bursch - are in their 183rd day in space, their 181st day aboard the ISS. They will return to Earth aboard Endeavour after six months in orbit on June 17.

In preparation for docking Friday, Perrin and Chang-Díaz will set up a centerline camera to help Cockrell with views of the station's docking mechanism during Endeavour's final approach tomorrow and will test the orbiter docking system ring. Cockrell and Lockhart will fire the shuttle's jets to raise the altitude of Endeavour and draw it closer to the station. The maneuvers will bring the shuttle about 46 statute miles behind the station by Friday morning.

Cockrell and Perrin will also activate the shuttle's robotic arm and use its cameras to survey the contents of the payload bay, including the Leonardo Multi-Purpose Logistics cargo module, the Mobile Base System and the replacement wrist roll joint for the station's robotic arm, Canadarm2, as well as debris shields for the Zvezda Service Module. Chang-Díaz and Perrin will install these components during three spacewalks scheduled for the mission. Today, they will prepare their spacesuits for use out of the Quest Airlock on the station next week.

Later this morning, Cockrell and Chang-Díaz will participate in a live conversation with Costa Rican President Abel Pacheco and reporters from two Hispanic television networks. Costa Rican-born Chang-Díaz tied the human spaceflight record yesterday when he launched on his seventh mission. Astronaut Jerry Ross set the record in April during the STS-110 mission.

With docking scheduled at 11:17 a.m. CDT tomorrow, STS-111 Commander Ken Cockrell, Pilot Paul Lockhart and Mission Specialists Philippe Perrin and Franklin Chang-Díaz today verified all of Endeavour's equipment is ready. Perrin and Chang-Díaz set up a centerline camera Cockrell will use during Friday's final approach to align Endeavour with the station's docking port. They also successfully tested the shuttle docking system and extended it to a position ready for contact with the station.

Cockrell and Perrin activated the shuttle robotic arm and used its cameras to survey the contents of the payload bay. Perrin and Chang-Díaz, who will conduct the three spacewalks scheduled for the mission, successfully checked out the spacesuits they will use during their scheduled spacewalks. During the first two spacewalks, the duo will help install a new aluminum platform, the Mobile Remote Servicer Base System or MBS, atop the station's railcar, the Mobile Transporter. Once installed, the MBS will allow the station's robotic arm, Canadarm2, to travel along the station railway, moving up and down an eventual 300-foot truss for maintenance and assembly work.

Cockrell and Lockhart fired Endeavour's jets three times today to adjust the speed at which the shuttle is closing in on the station. A final Terminal Phase Initiation burn will be conducted Friday morning to begin the final phase of the rendezvous.

The Expedition Four crewmembers - Commander Yury Onufrienko and Flight Engineers Carl Walz and Dan Bursch - tidied up their orbital home and completed routine maintenance on the eve of the arrival of the STS-111 crew.

Cockrell and Chang-Díaz took time out today to participate in a live conversation with Costa Rican President Abel Pacheco, U.S. Ambassador to Costa Rica John Danilovich and reporters from Univision and Telemundo. Costa Rican-born Chang-Díaz tied the human spaceflight record yesterday when he launched on his seventh mission.

At 2:08 p.m. central time, hatches between Endeavour and the station swung open, and the station's Expedition Four crewmembers-Commander Yury Onufrienko and Flight Engineers Dan Bursch and Carl Walz-greeted their visitors-Cockrell, Lockhart, Mission Specialists Franklin Chang-Díaz and Philippe Perrin and oncoming Expedition Five Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev.

The 10 astronauts and cosmonauts immediately set to work transferring priority equipment, supplies and experiments between the two vehicles. Items moving to the station included two Extravehicular Activity spacesuits and EVA tools to be used during the mission's three scheduled spacewalks. The Expedition Five crewmembers' custom-made Soyuz return craft seat liners and their Russian entry suits were transferred from Endeavour to the station at 5:55 p.m. central time, marking the official start of the Expedition Five Increment. With that transfer complete, Onufrienko, Bursch and Walz formally concluded their 182-day stay as space station residents. Korzun, Whitson and Treschev now begin their tenure as the fifth resident crew to live and work on board the International Space Station.

Communications checks between the station's Quest Airlock and the EVA suits Perrin and Chang-Díaz will use also were completed today. The spacewalks will see installation of a new platform, the Mobile Remote Servicer Base System, on the station's railcar, the Mobile Transporter, and replacement of the wrist roll joint on the station's arm.

Late in the day, the Flash Evaporator System Primary B controller failed for an as-yet unknown reason. The system has three redundant controllers, Primary A, Primary B and Secondary, and the failure of one controller will have no effect on mission operations.

The Flash Evaporator System sprays excess supply water into the inside of a trash-can shaped vessel that is wrapped by Freon coils. The heat being carried in these coils causes the water to flash into vapor and be vented overboard, disposing of excess heat and excess supply water.

Commander Ken Cockrell, Pilot Paul Lockhart and Mission Specialists Philippe Perrin and Franklin Chang-Díaz, and Expedition Five Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev, were awakened just after 4:30 Central time this morning by "American Woman," by Lenny Kravitz, a song selected for Whitson.

At the time of the crew's wakeup call, Endeavour had closed to within 900 statute miles of the ISS, aiming for a linkup to the docking port at the forward end of the Destiny Laboratory at 11:17 a.m. Central time as the two vehicles fly off the northeast coast of Australia, south of New Guinea. On board the station, the Expedition Four crew, Commander Yury Onufrienko and Flight Engineers Carl Walz and Dan Bursch, are spending the morning preparing for the arrival of Endeavour's astronauts and their Expedition Five replacements. Onufrienko, Walz and Bursch are in their 184th day in space, their 182nd day aboard the ISS.

A little less than two hours after Endeavour docks to the station, the hatches between the two spacecraft will open and Onufrienko, Bursch and Walz will greet their counterparts and conduct a safety briefing. Then, the ten astronauts and cosmonauts will begin transferring equipment, supplies and experiments between the two vehicles. The two Expedition crews will exchange their custom-made Soyuz return craft seat liners for the rescue vehicle currently docked to the station. Once the new Expedition Five crew conducts checks of their Russian entry suits, they will officially take over command of station operations, and Onufrienko, Walz and Bursch will become shuttle crewmembers.

All systems aboard Endeavour and the ISS continue to function in excellent shape.

The newly arrived crewmembers of Expedition Five aboard the International Space Station - Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev - will continue settling into their new home today as they work with Endeavour's astronauts to move the Leonardo Multi-Purpose Logistics Module from the shuttle's cargo bay to the Unity module of the complex in advance of the start of the transfer of almost 3 tons of equipment and supplies.

Commander Ken Cockrell, Pilot Paul Lockhart and Mission Specialists Philippe Perrin and Franklin Chang-Díaz, and the newest shuttle crewmembers - former Expedition Four Commander Yury Onufrienko and Flight Engineers Carl Walz and Dan Bursch, were awakened at 4:23 Central time this morning by "I Have a Dream," by ABBA, a song selected for Treschev.

Using the shuttle's robotic arm, Cockrell and Perrin will reach into Endeavour's payload bay and latch onto Leonardo at mid-morning. The pressurized cargo module will be attached to the nadir berthing port on Unity. After Walz and Whitson perform pressure checks, the hatch to the cargo carrier will be opened. Leonardo contains equipment, supplies and experiments necessary for the fifth resident crew's 4 ½-month stay in orbit.

The six Expedition crewmembers will continue their handover conferences and the 10 cosmonauts and astronauts will review procedures for the first spacewalk of the flight tomorrow. Perrin and Chang-Díaz will step out of the Quest Airlock Sunday to begin installing the Mobile Base System, a new platform which will enable the station's robotic arm, Canadarm2, to ride a railway the length of the station for future assembly tasks. Two more spacewalks are scheduled for Tuesday and Thursday to complete the Mobile Base system installation and to replace an ailing wrist roll joint on the station's robotic arm.

The Expedition Five crew officially assumed command of station operations yesterday at 5:55 p.m. Central time, marking the end of the Expedition Four increment at 181 days. Onufrienko, Walz and Bursch are now considered part of Endeavour's crew, aiming for a homecoming on June 17.

Systems on Endeavour and the ISS are functioning normally as the two vehicles orbit the Earth every 90 minutes at an altitude of 240 statute miles.

The Leonardo Multi-Purpose Logistics Module (MPLM) was unberthed from the payload bay early this morning by Commander Ken Cockrell operating the shuttle's robotic arm to move the module to the station's Unity module. Leonardo's installation proceeded perfectly with completion at 9:28 a.m. Central time. About 4:30 p.m. Central time, the MPLM's hatch was opened. Dan Bursch of Expedition Four called down at 4:52 pm that all crew members had entered the logistics module and were working to get the transfers rolling. The crew got a good start on the movement of more than 5,600 pounds of cargo to the station.

Early today, one of four control moment gyroscopes used in the station's attitude control system experienced a mechanical failure. Flight controllers turned it off and began using the remaining three gyros to maintain the station's attitude. It is believed that one of its spin bearings failed, causing it to seize. Flight Engineer Carl Walz reported that the crew could feel and hear "growling" vibrations as it failed. While the failure is a serious complication for the long-term space station operations, there are multiple backup systems for control of the station's attitude so it poses no threat to the safety of the shuttle or expedition crews. The situation is expected to require only minor changes to the STS-111 flight activities.

Franklin Chang-Díaz, and Perrin, with help from Paul Lockhart, readied their extravehicular mobility unit space suits and tools, and reviewed procedures for Sunday's spacewalk. The two first-time spacewalkers will install a Power and Data Grapple Fixture (PDGF) to the station's P6 solar array truss and temporarily store some Russian meteoroid/debris shields. They'll also remove thermal blankets from the Mobile Base System (MBS) in Endeavour's cargo bay, and support its unberthing. The MBS will be parked on the shuttle's arm near its installation point so that hardware temperatures can equalize before it is attached to the existing Mobile Transporter platform. At the end of the day, flight controllers will activate the MBS from the ground in preparation for the next day's operations. Chang-Díaz also will inspect and photograph the exterior condition of station's failed control moment gryoscope at the end of his spacewalk.

The combined STS-111 crew of Cockrell, Lockhart, Chang-Díaz, Perrin, Yury Onufrienko, Dan Bursch and Carl Walz will wake up at 4:23 am CDT Sunday, while new station Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev will arise at 4:53 am.

Commander Ken Cockrell, Pilot Paul Lockhart and Mission Specialists Philippe Perrin and Franklin Chang-Díaz, and the newest shuttle crewmembers - former Expedition Four Commander Yury Onufrienko and Flight Engineers Carl Walz and Dan Bursch, were awakened at 4:23 Central time this morning by "I Have a Dream," by ABBA, a song selected for Treschev.

Using the shuttle's robotic arm, Cockrell and Perrin will reach into Endeavour's payload bay and latch onto Leonardo at mid-morning. The pressurized cargo module will be attached to the nadir berthing port on Unity. After Walz and Whitson perform pressure checks, the hatch to the cargo carrier will be opened. Leonardo contains equipment, supplies and experiments necessary for the fifth resident crew's 4 ½-month stay in orbit.

The six Expedition crewmembers will continue their handover conferences and the 10 cosmonauts and astronauts will review procedures for the first spacewalk of the flight tomorrow. Perrin and Chang-Díaz will step out of the Quest Airlock Sunday to begin installing the Mobile Base System, a new platform which will enable the station's robotic arm, Canadarm2, to ride a railway the length of the station for future assembly tasks. Two more spacewalks are scheduled for Tuesday and Thursday to complete the Mobile Base system installation and to replace an ailing wrist roll joint on the station's robotic arm.

The Expedition Five crew officially assumed command of station operations last night just before 6 p.m. Central time, marking the end of the Expedition Four increment at 182 days. Onufrienko, Walz and Bursch are now considered part of Endeavour's crew, aiming for a homecoming on June 17.

Systems on Endeavour and the ISS are functioning normally as the two vehicles orbit the Earth every 90 minutes at an altitude of 240 statute miles.

Chang-Díaz and Perrin ventured outside the station's Quest airlock at 10:27 a.m. Central time. With the help of Endeavour Pilot Paul Lockhart, who guided the spacewalk from inside the shuttle, Chang-Díaz and Perrin first installed a Power and Data Grapple Fixture to the station's P6 truss. The fixture will be used to relocate the P6 truss structure to its final location on the station.

Attached to a foot restraint at the end of the station's robotic arm, Canadarm2, operated by Expedition Five Flight Engineer Peggy Whitson and ISS Commander Valery Korzun, Chang-Díaz gathered six micrometeoroid debris shields from the shuttle cargo bay and, with help from Perrin, temporarily stored them on Pressurized Mating Adapter-1 which links Unity to Zarya. Whitson and Korzun will install the shields on the Zvezda Service Module during a spacewalk set for late July.

Chang-Díaz then conducted a visual and photographic inspection of one of the station's four control moment gyroscopes on the station's Z1 truss, a task that was added to today's spacewalk after the gyroscope experienced a mechanical failure yesterday. The photos may help ground controllers better understand why the gyroscope failed.

Removal of thermal blankets from the Mobile Remote Servicer Base System or MBS was the final task of the spacewalk. At 5:21 p.m. Endeavour Commander Ken Cockrell commanded the release of latches that had secured the MBS to its carrier in the payload bay. Whitson and Carl Walz then latched onto the MBS with Canadarm2, removed it from its carrier, and maneuvered it to a position about three feet above the station's railcar, the Mobile Transporter. Canadarm2 will be left in a parked position overnight to thermally condition the MBS before it is mated to the railcar Monday.

Later, the Canadarm2 robotic arm will be commanded to "walk off" its position attached to the Destiny Laboratory onto a Power and Data Grapple Fixture atop the MBS. The arm will then be able to move up and down along the station truss for use in future assembly operations.

Following an inventory of the tools they used during the spacewalk, Perrin and Chang-Díaz re-entered Quest. Airlock repressurization began at 5:41 p.m. Central time, signaling the end of the spacewalk.

With the help of Endeavour Pilot Paul Lockhart, who will help coordinate the spacewalk from inside Endeavour, Chang-Díaz and Perrin will leave the Quest Airlock this morning for a planned six-hour spacewalk to first install a Power and Data Grapple Fixture to the station's P6 truss for its future relocation. The two first-time space walkers will then temporarily park micrometeoroid debris shields on the Russian segment of the station. Expedition Five Flight Engineer Peggy Whitson and ISS Commander Valery Korzun will install the shields on the Zvezda Service Module during a spacewalk set for late July.

The final task of the spacewalk will involve the removal of thermal blankets from the Mobile Base System. That component will be mated tomorrow to the Mobile Transporter on the S0 (S-Zero) Truss of the ISS to enable the Canadarm2 robotic arm to "walk off" the Destiny Laboratory onto the station's railcar system for transport up and down the length of the complex. Chang-Díaz will be identifiable by solid red stripes on the legs of his spacesuit. Perrin will wear the pure white suit with no stripes.

Commander Ken Cockrell will use the shuttle robotic arm's cameras to monitor the activities outside. Whitson and Endeavour Astronaut Carl Walz will transport Chang-Díaz on the end of Canadarm2 during the spacewalk.

During the spacewalk, Chang-Díaz will conduct a visual and photographic inspection of one of the station's four control moment gyroscopes (CMGs) on the station's Z1 Truss. The gyroscope experienced a mechanical failure of its spin bearing yesterday and will no longer be able to be used to assist in station attitude control.

Three other CMGs are operating normally to provide full attitude control for the ISS. If necessary, station control can be maintained with only two functioning CMGs, with other backup attitude control systems also available. The CMG failure will have no impact on ISS operations. A substitute CMG is available on the ground and program managers are evaluating future replacement options. To accommodate the use of three CMGs and varying thermal conditions, the orientation of the shuttle and station will be altered slightly for today's spacewalk.

Once the protective blankets are removed from the Mobile Base System, Whitson and Walz will latch onto the platform in Endeavour's cargo bay with Canadarm2, remove it from its carrier, and maneuver it to a position just above the Mobile Transporter, which was installed on the S-Zero Truss in April. Canadarm2 will be left in a parked position overnight to thermally condition the Mobile Base System before it is mated to the Transporter railcar Monday.

At the start of their fifth day in space, Endeavour's crew was awakened at 4:23 a.m. Central time to the sound of "Drops of Jupiter" by Train, a tune selected for Cockrell.

The MBS was attached to the Mobile Transporter on the Destiny Lab at 8:03 a.m. Central by Expedition Five Flight Engineer Peggy Whitson and Endeavour Astronaut Carl Walz. The two used the station's robotic arm, Canadarm2, to maneuver the MBS into position. Controllers on the ground then commanded latches on the transporter to close, securing the MBS in place. Eventually, Canadarm2 will "walk off" its current base location on the Destiny Lab onto the MBS. The MBS is an important part of the station's future Mobile Servicing System, which will allow the station's arm to travel the length of the station to perform future construction tasks.

The astronauts and cosmonauts on the Shuttle/Station complex, including STS-111 Commander Ken Cockrell, Pilot Paul Lockhart, Mission Specialists Philippe Perrin and Franklin Chang-Díaz, as well Expedition Four crew Yury Onufrienko, Dan Bursch and Walz, and Expedition Five crewmembers Whitson, Commander Valery Korzun and Flight Engineer Sergei Treschev, continued their transfer of equipment and supplies to the station from the Leonardo Multi-Purpose Logistics Module. As they began their Monday morning in space, the crewmembers already had transferred 73 percent of the equipment and supplies.

Though the Expedition Five crew has been in charge of station operations since Friday afternoon, an official change of command ceremony between the two Expedition crews took place this afternoon. The crew also reviewed procedures for tomorrow's second spacewalk of the mission by Chang-Díaz and Perrin in which the two astronauts will hook up cables between the Mobile Base System and the Mobile Transporter and firmly bolt the two components together.

At 4:53 p.m. today, Endeavour completed a one-hour reboost maneuver to increase the station's altitude by a little over a mile. This is the first of three such maneuvers that eventually will raise the station's altitude by six miles. Systems on both Endeavour and the station continue to function normally as they orbit the Earth every 90 minutes at an altitude of about 240 statute miles.

The Mobile Base System (MBS), parked overnight on the station's robotic arm about three feet from installation, has had a chance to receive the proper thermal conditioning to match the temperatures on the Mobile Transporter, the actual railcar on the truss itself. Operated by Expedition Five Flight Engineer Peggy Whitson and Endeavour Astronaut Carl Walz, the space station robotic arm will mate the MBS platform to the railcar and flight controllers on the ground will command latches to close to secure the platform in place. Eventually, the station arm will "walk off" its current base location on the Destiny Laboratory to the MBS and ride the railway to move up and down the entire length of the station.

The 10 astronauts and cosmonauts on the Shuttle/Station complex will also continue their transfer of equipment and supplies to the station from the Leonardo Multi-Purpose Logistics Module.

Endeavour's crew - Commander Ken Cockrell, Pilot Paul Lockhart, Mission Specialists Philippe Perrin and Franklin Chang-Díaz, and former station residents Yury Onufrienko, Walz and Dan Bursch - were awakened at 4:23 a.m. Central time to "I Only Have Eyes for You" by the Flamingoes, from the American Graffiti soundtrack which was selected for Lockhart.

Although Expedition Five crewmembers Whitson, Commander Valery Korzun and Flight Engineer Sergei Treschev have been in charge of ISS operations since Friday afternoon, an official change of command ceremony between Expedition crews will occur early this afternoon.

The crews will also participate late today in a review of procedures for tomorrow's second spacewalk by Chang-Díaz and Perrin to hook up cables between the Mobile Base System and the Mobile Transporter and to bolt the two components together. Systems on both Endeavour and the ISS continue to function normally as the two craft orbit the Earth every 90 minutes at an altitude of about 240 statute miles.

The first contribution to the station by Canada was the space station's robotic arm, Canadarm2, which was delivered to the ISS last year. Today, in a planned 6 1/2 hour spacewalk, Chang-Díaz and Perrin will connect power and data cables to the newly installed Mobile Base System and permanently bolt it to the Mobile Transporter railcar which was affixed to the S0 (S-Zero) Truss on the ISS in April. The new platform will enable Canadarm2 to "walk off" the Destiny Laboratory and mate itself to any one of four grapple fixtures so it can be driven up and down the length of the station's trusses for future construction tasks.

Canadarm2 has provided power to the Mobile Base System since its unberthing from Endeavour's payload bay Sunday near the end of the first spacewalk. The platform was attached to the Mobile Transporter on Monday. Chang-Díaz and Perrin will connect primary and backup cables for video and data and primary cables for power between the MBS and the Mobile Transporter. Once the cable connections are completed, ground controllers will send commands for the MT to remotely plug in its umbilical attachments to receptacles on the truss railway. Flight controllers will then begin a checkout of the MBS systems to ensure all connections are established.

With that completed, Chang-Díaz and Perrin will deploy an auxiliary grapple fixture on the MBS called the Payload Orbital Replacement Unit Accommodation, or POA. The fixture will be used to transport additional cargo elements on the MBS as it is moved along the truss railway.

After the ground-controlled checkout complete, the two spacewalkers will connect redundant power cables to the MT.

The final task for the spacewalkers will be to relocate a television camera on the MBS and add an extra extension cable for the platform.

Handover conferences between the two Expedition crews and the transfer of equipment and supplies to the Leonardo Multi-Purpose Logistics Module will also continue today. The crew has emptied Leonardo's cargo into the station and is now refilling the module with unneeded supplies to be returned to Earth.

Endeavour's crew - Chang-Díaz, Perrin, Commander Ken Cockrell, Pilot Paul Lockhart, Yury Onufrienko, Carl Walz and Dan Bursch - was awakened at 4:23 a.m. Central this morning to the sound of "Mi PC" by Juan Luis Guerra, selected for Chang-Díaz by his family.

All systems on both Endeavour and the International Space Station continue to function normally as the two craft orbit the Earth every 90 minutes at an altitude of 240 statute miles.

At 1:55 a.m. Central time, Walz set a new U.S. record for most aggregate days spent in orbit, exceeding Shannon Lucid's record as he reached the 223 day mark accrued over five flights. Last night, Walz and Bursch also surpassed Lucid's U.S. single spaceflight endurance record of 188 days at 9:19 p.m. Central time.

Today, along with Expedition Five Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev, the 10 astronauts and cosmonauts will continue to transfer unneeded station equipment and supplies to the Leonardo Multi-Purpose Logistics Module to be returned to earth. Handover conferences will also continue between the two Expedition crews.

The crewmembers will also review the plans for the third and final spacewalk of the mission on Thursday. Chang-Díaz and Perrin will replace a faulty wrist roll joint on the space station's robotic arm, the Canadarm2.

Reporters in the U.S., France and Canada will also have a chance to question the two crews on the progress of the flight during a Joint Crew News Conference this afternoon.

The second of three reboosts of the station's altitude will be performed later today, using the shuttle jets to counter the natural effects of atmospheric drag on the station's orbit.

All systems on both Endeavour and the International Space Station continue to function normally as the two craft orbit the Earth every 90 minutes at an altitude of 240 statute miles.

Working side by side, the Endeavour crew - Ken Cockrell, Paul Lockhart, Franklin Chang-Díaz, Philippe Perrin, Yury Onufrienko, Carl Walz and Dan Bursch - and the Expedition Five crew of Valery Korzun, Peggy Whitson and Sergei Treschev have transferred approximately 4,500 of the expected 4,665 pounds of material that will return to Earth inside the MPLM. All of the items slated to be moved from Endeavour's middeck to the station have been transferred and the astronauts are now restowing return items.

Also today, Endeavour's small steering jets were fired in a series of pulses to gently raise the station's orbit by another mile. This was the second of three scheduled reboost maneuvers designed to raise the station's altitude by a total of six miles.

The crewmembers also reviewed the plans for the third and final scheduled spacewalk of the mission. Thursday morning, at 9:43 a.m. Central, Chang-Díaz and Perrin will float out of the Quest airlock and begin work to replace a faulty wrist-roll joint on the space station's robotic arm, Canadarm2. The spacewalk is slated to last about seven hours.

This afternoon, the crews took a break from the stowage activities to discuss the progress of their mission with reporters in the U.S., France and Canada during a joint crew news conference.

Endeavour's payload bay cameras captured views of wildfires burning in Colorado about 4:40 p.m Central today. Smoke rising from the wildfires was clearly visible as the shuttle/station complex orbited 240 miles over the surface of the Earth.

The two crews are scheduled to go to sleep just before 8 p.m. today and will awaken just before 4 a.m. Thursday. All systems on both Endeavour and the International Space Station continue to function normally as the two craft orbit the Earth every 90 minutes at an altitude of 240 statute miles.

With Endeavour Pilot Paul Lockhart choreographing the spacewalk from inside Endeavour, Chang-Díaz and Perrin stepped outside the station's Quest airlock at 10:16 a.m. Central time. Commander Ken Cockrell used the shuttle's robotic arm to provide television views of the spacewalk activity.

Chang-Díaz and Perrin first removed the arm's latching end effector, essentially the hand of Canadarm2, and attached it to a handrail on the station's Destiny Laboratory. Next they released six bolts connecting the wrist roll joint to the adjoining yaw joint and an additional bolt connecting power, data and video umbilicals. Perrin carried the failed unit to Endeavour's payload bay where it was temporarily stored near the new joint.

Perrin released six fasteners to remove the new joint from its launch carrier in the shuttle cargo bay and brought it up to Canadarm2 where Chang-Díaz was positioned. After aligning the new component with the wrist yaw joint at the end of the arm, the duo tightened the six bolts to secure the new joint to the arm and turned the final bolt to connect the power, data and video lines. After they reinstalled the latching end effector, power was turned back on to Canadarm2. The failed joint was then placed in a flight support structure in the cargo bay for return to Earth.

Working at the robotics workstation inside the Destiny Laboratory, Endeavour Astronaut Dan Bursch and Expedition Five Commander Valery Korzun conducted a checkout of the health of the arm once the new joint was installed. At 3:43 p.m. Central time, the arm returned to full operational status.

Following an inventory of the tools they used during the spacewalk, Perrin and Chang-Díaz re-entered Quest. Airlock repressurization began at 5:33 p.m. Central time, signaling the end of the spacewalk. It was the 41st spacewalk in support of ISS assembly and maintenance and the third of the mission, bringing the total spacewalking time for STS-111 to 19 hours and 31 minutes.

Canadarm2 experienced an electrical problem in March in one of two redundant power and data channels which command the operation of the seven-jointed apparatus. It was determined that a short created inadvertent commanding in the arm's primary channel which resulted in the unexpected activation of the arm's brakes. The backup commanding channel has functioned perfectly. Even though the arm has continued to operate flawlessly through a software modification, the replacement of the problematic wrist joint was added to the STS-111 mission.

Inside the shuttle, Pilot Paul Lockhart will choreograph the planned seven-hour spacewalk while Commander Ken Cockrell will use the shuttle's robotic arm to provide television views of the spacewalk activity. Inside the station, Endeavour Astronaut Dan Bursch and Expedition Five Commander Valery Korzun will conduct a checkout of the health of the arm once the new joint is installed. Expedition Five Flight Engineers Peggy Whitson and Sergei Treschev will continue cargo transfer activities throughout the day.

Each joint of Canadarm2 is attached to the next joint by six bolts and an additional bolt that disconnects power, data and video connections. The first task for the spacewalkers is to remove the latching end effector (LEE), essentially the hand of Canadarm2, leaving the faulty wrist roll joint exposed. Next they will disconnect the wrist roll joint and Perrin will carry the failed unit to Endeavour's payload bay to temporarily store it next to the new joint. Chang-Díaz will assist in removing the new joint from its launch carrier and Perrin will bring it up to Canadarm2. The spacewalkers will align the new component with the wrist yaw joint at the end of the arm, tighten the six bolts and turn the final bolt to connect power, data and video lines. They will reinstall the LEE and power will be turned back onto Canadarm2.

Endeavour's astronauts - Cockrell, Lockhart, Chang-Díaz, Perrin, Bursch, Yury Onufrienko and Carl Walz - were awakened just before 4 a.m. Central time this morning to the song, "On the Road Again," by Willie Nelson, selected for Walz by his family. Walz is returning to Earth after a six-month stay in orbit.

All systems on both Endeavour and the International Space Station continue to function normally as the two craft orbit the Earth every 90 minutes at an altitude of 240 statute miles.

Endeavour astronaut Philippe Perrin completed the last major task of the STS-111 mission today when he successfully returned the Leonardo Multi-Purpose Logistics Module to the shuttle's payload bay at 3:11 p.m. Central.

Leonardo brought a total of 8,062 pounds of supplies and equipment to the space station, including a new science rack to house microgravity experiments and a glovebox that will allow station crews to conduct experiments that require isolation. More than 1,000 pounds of equipment was also brought to the station on Endeavour's middeck.

In addition to carrying home the results of several science experiments, Leonardo is returning to Earth with 4,667 pounds of equipment and supplies that are no longer needed aboard the station. More than 1,000 pounds of equipment also will be returned to Earth in Endeavour's middeck.

Endeavour's steering jets were used today to raise the station's altitude by an additional four miles, the third and final reboost of the mission. Together, the three reboosts raised the altitude of the station by approximately six miles.

Early Saturday morning, about 6:30 central time, following final goodbyes, the hatches between the two spacecraft will swing shut. About three hours later, the crew of Endeavour - Ken Cockrell, Paul Lockhart, Franklin Chang-Díaz, Perrin, Dan Bursch, Yury Onufrienko and Carl Walz - will depart the space station, leaving the Expedition Five crew - Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev - to begin their 4½ -month mission of continued station growth and scientific research.

All systems on both Endeavour and the International Space Station continue to function normally as the two craft orbit the Earth every 90 minutes at an altitude of 240 statute miles.

Working with the International Space Station's Expedition Five crew, Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev, Endeavour's astronauts will deactivate the Leonardo Multi-Purpose Logistics Module and will remove it from its location on the Unity node of the International Space Station. Using the shuttle's robotic arm, Cockrell will place the module back into Endeavour's cargo bay for its return to Earth.

About 5,600 pounds of equipment and supplies are being left behind on the ISS, including a new phone booth-sized rack to house delicate microgravity experiments and a glovebox to provide the Expedition Five crew future hands-on interaction with contained experiments. The cargo module is returning with 4,665 pounds of discarded equipment and supplies to Earth.

Last night, an initial attempt to provide power from the newly installed Mobile Base System platform to the space station robotic arm, Canadarm2, was not successful. Engineers believe that a minor software glitch is preventing commanding from the platform to reach the newly refurbished robotic arm so that the new platform, rather than the Destiny Laboratory, can provide power for the arm. This is not believed to be a serious problem, and should be corrected well before the arm "walks off" its base location on the Destiny to use the Mobile Base System as its formal platform for a ride down the length of the station's truss structure. Canadarm2 received a new wrist roll joint yesterday during the final spacewalk of the flight by Chang-Díaz and Perrin, and the arm itself has full functionality and redundancy.

Endeavour's steering jets are being used to raise the station's altitude a third and final time today prior to tomorrow's scheduled undocking. The three maneuvers are expected to raise the altitude of the ISS by around six statute miles.

Endeavour is scheduled to undock from the ISS Saturday morning at 9:32 a.m. Central time while the two spacecraft fly over western Kazakhstan, not far from Russia's primary launch site at the Baikonur Cosmodrome. Once Endeavour departs, ISS residents Korzun, Whitson and Treschev will begin their 4 ½ month mission in earnest, unpacking gear and settling in to their new home in orbit.

All systems on both Endeavour and the International Space Station continue to function normally as the two craft orbit the Earth every 90 minutes at an altitude of 240 statute miles. Endeavour is scheduled to undock from the space station Saturday morning.

After final farewells and the closing of the hatches between the two vehicles, Endeavour will undock from the ISS at 9:32 a.m. Central time as the two craft fly over western Kazakhstan, not far from Russia's primary launch site at the Baikonur Cosmodrome.

The initial separation will be provided by springs that will gently push the shuttle away from the station. When Endeavour is about two feet away from the station and the docking devices are clear of one another, Pilot Paul Lockhart will fire Endeavour's steering jets to begin slowly moving away.

About 45 minutes after undocking, when Endeavour is 450 feet in front of the ISS, Lockhart will begin a one-hour flyaround of the station. After 1 1/4 laps of the complex, Lockhart will fire Endeavour's jets to move away from the station about 11:16 a.m. Once Endeavour departs the outpost for the final time, the new ISS crew will begin to unpack gear and prepare for its long duration stay on orbit.

Endeavour's astronauts - Lockhart, Chang-Diaz, Commander Ken Cockrell, Philippe Perrin, Dan Bursch, Yury Onufrienko and Carl Walz - were awakened just before 3:30 Central time this morning to the song, "Hello to All the Children of the World", prepared for Bursch by his son's classmates.

Endeavour is scheduled to land at the Kennedy Space Center just before noon Central time Monday, bringing Onufrienko, Bursch and Walz home after 194 days in space, which for Walz and Bursch will set a new U.S. single spaceflight endurance mark. Landing Monday will result in one more day in space for Onufrienko than he logged in 1996 as Commander of the former Russian Mir Space Station.

Endeavour and the ISS to continue to function normally as they orbit at an altitude of around 240 statute miles.

Commander Ken Cockrell, Pilot Paul Lockhart, Mission Specialists Franklin Chang-Diaz and Philippe Perrin, and returning Expedition 4 crewmembers Yury Onufrienko, Carl Walz and Dan Bursch were awakened at 3:23 a.m. to "Where My Heart Will Take Me," the theme song from Star Trek: Enterprise, performed by Russell Watson.

Today, Cockrell, Lockhart and Chang-Diaz will test the reaction control system jets and flight control surfaces that will be used to guide Endeavour through the atmosphere Monday morning. Onufrienko, Walz, Bursch and Perrin will install their seats for re-entry on Endeavour's middeck. Perrin will help the Expedition 4 crewmembers into their seats Monday. Endeavour is scheduled to land at Kennedy Space Center in Florida Monday at 11:59 a.m. CDT.

Onufrienko, Walz and Bursch are coming back to Earth after 181 days aboard the International Space Station. If Endeavour lands on time, Walz and Bursch will set a new record of U.S. spaceflight endurance with 194 days in orbit. Astronaut Shannon Lucid held the previous record of 188 days, set on her mission to Mir in 1996.

The Expedition 4 crew will talk with media representatives from the Fox News Network and TV stations in Ohio and New York in a news conference beginning at 12:38 p.m.

Cockrell and Lockhart will fire Endeavour's orbital maneuvering system engines for 10 seconds today to allow sensors to observe the plume created by the burn to help improve models on the ground.

On board the space station, the Expedition 5 crew - Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev - was awakened at 1 a.m. The crew is unpacking and settling into its new home, preparing for a 41/2-month stay in orbit.

The crew of Endeavour will begin a scheduled eight-hour sleep period at 7:23 p.m. today. They are to be awakened just before 3:30 a.m. Monday to prepare for re-entry and landing of Endeavour, concluding a successful mission to the station.

Today, Commander Ken Cockrell, Pilot Paul Lockhart and Flight Engineer Franklin Chang-Diaz activated one of three hydraulic power units on Endeavour, tested all of its aerosurfaces, and then test-fired Endeavour's steering jets. The remaining crew members - Philippe Perrin of CNES, and former Expedition Four crewmembers Yury Onufrienko, Carl Walz and Dan Bursch - continued packing up gear and hardware in anticipation of tomorrow's landing.

Endeavour has two opportunities to land at the Kennedy Space Center on Monday. The first begins with a deorbit burn of the Orbital Maneuvering System engines at 10:51 a.m., followed by a landing at 11:59 a.m. Central time (12:59 p.m. Eastern.) In the event weather prevents a landing on that first opportunity, there is a second opportunity, beginning with a deorbit burn at 12:30 p.m. and resulting in a 1:36 p.m. Central (2:36 p.m. Eastern) landing in Florida. Preliminary weather forecasts call for the possibility of clouds and rain showers within the vicinity of the three-mile long landing strip on Monday. The backup landing site at California's Edwards Air Force Base was not called up for support Monday. Endeavour has sufficient consumables to remain in orbit, if necessary, until Thursday.

Onufrienko, Bursch and Walz took a few minutes this afternoon to talk with Fox News, WOIO-TV of Cleveland - Walz' hometown, and WICZ-TV of Vestal, NY - Bursch's hometown. The crew extended their best wishes on this Father's Day and discussed their 193-day stay in space. With an on-time landing Monday, Onufrienko, Bursch and Walz will have spent 194 days in space.

Meanwhile, aboard the space station, the Expedition Five crew - Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev - spent today settling into their new home, unpacking some of the equipment and hardware carried to the station by Endeavour. They also enjoyed a few hours of off-duty time today.

Endeavour's crew will begin a scheduled eight-hour sleep period at 7:23 p.m. today, waking just before 3:30 a.m. Monday to prepare for a homecoming to the Kennedy Space Center.

Endeavour completed all major objectives of its STS-111 flight. Expedition 5 crewmembers were taken to the station while Expedition 4 crewmembers are coming home. Tons of equipment and supplies were transferred between the two spacecraft and three spacewalks replaced the wrist roll joint of the station's robotic arm, Canadarm2, and gave the arm a mobile base for future station assembly and maintenance work.

Endeavour has two landing opportunities at KSC today. The first begins with the firing of Endeavour's braking rockets at 10:51 a.m. and a landing at 11:59 a.m. CDT. A second opportunity for a Florida landing would see the deorbit burn at 12:30 p.m. and a landing at KSC at 1:36 p.m. CDT. Preliminary weather forecasts call for the possibility of clouds and rain showers in the area of the three-mile-long landing strip on Monday. The backup landing site at California's Edwards Air Force Base was not activated today. Endeavour has enough consumables to stay in orbit until Thursday.

Endeavour Commander Ken Cockrell, Pilot Paul Lockhart, and Mission Specialists Philippe Perrin and Franklin Chang-Diaz, and Expedition 4 crewmembers Yury Onufrienko, Carl Walz and Dan Bursch were awakened at 3:23 a.m. by the "The Eyes of Texas," performed by the University of Texas Marching Band. Cockrell and Lockhart hold degrees from that university.

Meanwhile, aboard the ISS, the Expedition 5 crew - Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev - is still settling into its new home, unpacking the supplies and equipment delivered by Endeavour to the station.

Endeavour crewmembers, Commander Ken Cockrell, Pilot Paul Lockhart, and Mission Specialists Philippe Perrin and Franklin Chang-Diaz, and Expedition 4's Yury Onufrienko, Carl Walz and Dan Bursch, were given the word to back out of deorbit preparations about 10:30 a.m. today.

Endeavour has two landing opportunities at KSC Tuesday. The first begins with the firing of Endeavour's braking rockets at 9:47 a.m. and a landing at 10:55 a.m. CDT. A second opportunity for a Florida landing would see the deorbit burn at 11:24 a.m. and a landing at KSC at 12:31 p.m. CDT. Preliminary weather forecasts call for the possibility of clouds and rain showers in the area of the three-mile landing strip on Tuesday.

The Edwards Air Force Base landing site will be activated Tuesday, though KSC remains the preferred landing location. Forecasts for both KSC and Edwards called for questionable weather that could prevent a Tuesday landing. Endeavour has enough consumables on board to remain in orbit until Thursday.

The first of two Tuesday opportunities to land at Edwards would see a deorbit burn at 12:54 p.m. and a landing at 2 p.m. CDT. For the second opportunity, the deorbit burn would begin at 2:32 p.m. with a landing at 3:36 p.m. CDT.

Endeavour completed all major objectives of its STS-111 flight. It rotated station crews, brought more than 9,000 pounds of equipment and supplies to the station, and in three successful spacewalks gave the station's robotic arm, Canadarm2, a mobile base for future station assembly and maintenance work, and replaced its wrist-roll joint.

Crewmembers aboard Endeavour were scheduled to begin a sleep period at 6:23 p.m. and be awakened at 2:23 a.m. Tuesday.

Meanwhile, the ISS Expedition 5 crew - Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev - is still unpacking the supplies and equipment delivered by Endeavour to the station.

Houston's Mission Control Center told Endeavour crewmembers, Commander Ken Cockrell, Pilot Paul Lockhart, and Mission Specialists Philippe Perrin and Franklin Chang-Diaz, and Expedition 4's Yury Onufrienko, Carl Walz and Dan Bursch, of the second of two wave offs about 9:35 a.m.

Similar inclement weather on Monday resulted in a wave-off of those landing opportunities. Wednesday offers two landing opportunities at KSC and three at Edwards Air Force Base in California. Forecasters are predicting improving weather at both sites. Endeavour has enough consumables on board to remain in orbit until Thursday, if necessary.

The first of the KSC landing attempts would begin with a deorbit burn at 8:44 a.m. and a landing at 9:53 a.m. CDT (10:53 a.m. eastern.) A second opportunity for a Florida landing would see the deorbit burn at 10:19 a.m. and a landing at KSC at 11:27 a.m. CDT (12:27 p.m. eastern.)

The first of the three subsequent opportunities at Edwards would begin with a deorbit burn at 11:50 a.m. and a landing at 12:58 p.m. CDT. The deorbit burn for the second attempt would be at 1:27 p.m. and a landing at 2:33 p.m. CDT. The third opportunity would see a deorbit burn at 3:06 p.m. and a landing at 4:11 p.m. CDT.

Crewmembers aboard Endeavour are scheduled to begin a sleep period at 5:23 p.m. and be awakened at 1:23 a.m. Wednesday.

All continues to go smoothly aboard the International Space Station in the early days of Expedition 5's residency. Commander Valery Korzun, and Flight Engineers Peggy Whitson and Sergei Treschev, are still unpacking the supplies and equipment delivered by Endeavour.

Rain and thundershowers in the area of the Kennedy Space Center landing site in Florida caused flight controllers to wave off both of Monday's opportunities to bring Endeavour home.

Endeavour crewmembers, Commander Ken Cockrell, Pilot Paul Lockhart, and Mission Specialists Philippe Perrin and Franklin Chang-Diaz, and Expedition 4's Yury Onufrienko, Carl Walz and Dan Bursch, have two landing opportunities at KSC today. The first begins with the firing of Endeavour's braking rockets at 9:47 a.m. and a landing at 10:55 a.m. CDT. A second opportunity for a Florida landing would see the deorbit burn at 11:24 a.m. and a landing at KSC at 12:31 p.m. CDT.

The Edwards Air Force Base landing site in California will be activated today, though KSC remains the preferred landing location. The first of two opportunities to land at Edwards would see a deorbit burn at 12:54 p.m. and a landing at 2:02 p.m. CDT. For the second opportunity, the deorbit burn would begin at 2:32 p.m. with a landing at 3:38 p.m. CDT.

Preliminary forecasts for both KSC and Edwards call for a chance of showers and thunderstorms in Florida and gusty winds in California that could prevent a Tuesday landing. Endeavour has enough consumables on board to remain in orbit until Thursday.

Endeavour's crew completed all major objectives of its STS-111 flight. It rotated station crews, brought more than 9,000 pounds of equipment and supplies to the station, and in three successful spacewalks gave the station's robotic arm, Canadarm2, a mobile base for future station assembly and maintenance work, and replaced its wrist-roll joint.

Meanwhile, the ISS Expedition 5 crew - Commander Valery Korzun and Flight Engineers Peggy Whitson and Sergei Treschev - is still unpacking the supplies and equipment delivered by Endeavour to the station and familiarizing themselves with their new home.

For a second day, rain, thundershowers and clouds around the Kennedy Space Center in Florida caused flight controllers to wave off Tuesday's opportunities to bring Endeavour and its crew home.

Similar weather Monday resulted in a wave-off of those landing opportunities. Wednesday offers two landing opportunities at KSC and three at Edwards Air Force Base in California. Forecasters are predicting improving weather at both sites. Endeavour has enough consumables on board to remain in orbit until Thursday.

The first of the KSC landing attempts would begin with a deorbit burn at 8:44 a.m. and a landing at 9:53 a.m. CDT (10:53 a.m. EDT.) A second opportunity for a Florida landing would see the deorbit burn at 10:19 a.m. and a landing at 11:27 a.m. CDT (12:27 p.m. EDT.)

The first of the three subsequent opportunities at Edwards would begin with a deorbit burn at 11:50 a.m. and a landing at 12:58 p.m. CDT (10:58 a.m. PDT). The deorbit burn for the second attempt would be at 1:27 p.m. and a landing at 2:33 p.m. CDT (12:33 p.m. PDT). The third opportunity would see a deorbit burn at 3:06 p.m. and a landing at 4:11 p.m. CDT (2:11 p.m. PDT).

All continues to go smoothly aboard the International Space Station in the early days of Expedition 5's residency. Commander Valery Korzun, and Flight Engineers Peggy Whitson and Sergei Treschev are activating equipment, initiating scientific experiments and getting used to the space station environment and routines.