STS-88 Day 13 Highlights

Back to STS-88 Flight Day 12 Highlights:

On Tuesday, December 15, 1998, 12:00 p.m. CST, STS-88 MCC Status Report # 26 reports:

Endeavour's astronauts awoke to the sounds of Richard Wagner's "Ride of the Valkyries" today, and are now preparing for a return trip to Earth. The wake-up call came at 11:36 a.m. CST, and was chosen by the flight control team to energize the six crew members in anticipation of tonight's landing in Florida, marking the 10th nighttime Shuttle landing in the program's history.

If weather cooperates, Endeavour will touch down at the Kennedy Space Center at 9:54 p.m. CST after completing 185 orbits of the Earth. A deorbit firing of the Shuttle's maneuvering engines will occur at 8:47 p.m. CST to slow the spacecraft's forward velocity, allowing it to drop back into the Earth's atmosphere. Returning as an unpowered, hypersonic glider, Endeavour will follow a ground track that takes it over the Mexico-Guatemala border and across the Gulf of Mexico, making U.S. landfall over the Ft. Meyers/Sarasota, Florida, area before heading in for a landing at runway 33.

If all goes as planned, Endeavour's cargo bay doors will swing shut at 6:07 p.m., after which the astronauts will climb into their launch and entry suits and strap into their seats. Commander Bob Cabana, Pilot Rick Sturckow and Flight Engineer Nancy Currie will be joined on the flight deck for entry by Mission Specialist Jim Newman, while crew mates Jerry Ross and Sergei Krikalev will be seated down on the middeck.

Forecasters are keeping a close watch on weather in the vicinity of the landing site, with current predictions calling for scattered clouds at 3,000 feet with a chance of showers within 30 miles of the Shuttle Landing Facility. Forecasters predict about a 70 percent chance of acceptable weather for the first of tonight's two landing opportunities.

If the forecast holds, Entry Flight Director John Shannon will give the green light to fire Endeavour's two orbital maneuvering system engines at 8:47 p.m. CST. The deorbit burn will slow the shuttle by 349 feet per second, allowing it to descend back to Earth. Landing is scheduled at 9:54 p.m. CST, completing a 4.6-million-mile mission.

Weather conditions are expected to be somewhat better for tonight's second landing opportunity at KSC, with forecasters indicating an 80 percent chance of favorable weather. For the second opportunity, a deorbit burn at 10:24 p.m. CST would see Endeavour land at 11:30 p.m. CST. Mission managers have decided not to call up landing support at the backup landing site at Edwards Air Force Base, Calif., for this evening's opportunities. However, Edwards will be called up for backup landing support on Wednesday should landing at KSC tonight be waved off.

The crew will remain at KSC on Wednesday, returning to Houston's Ellington Field about 2 p.m. Thursday.

Endeavour is orbiting the Earth at an altitude of 246 statute miles with all of its systems in excellent shape.

On Tuesday, December 15, 1998, 11:00 p.m. CST, STS-88 MCC Status Report # 27 reports:

NASA's final Shuttle mission of 1998 came to an end this evening with the landing of Space Shuttle Endeavour at Kennedy Space Center. Following a 4.6 million mile journey, STS-88 Commander Bob Cabana guided the orbiter down onto runway 15 with landing gear touchdown occurring at 9:54 p.m. CST.

While weather forecasts in the final days of the mission had indicated that rain showers might delay the astronauts return, the weather cleared, allowing Entry Flight Director John Shannon to give a "go" for the deorbit burn which occurred at 8:46 p.m. CST.

Tonight's landing at KSC marked the 10th night landing in the history of the Shuttle program. It was also the 17th straight landing at Kennedy Space Center.and the 24th in the last 25 Shuttle missions to land at the Florida spaceport.

While Endeavour is back on firm ground, 246 miles above, the new International Space Station continues to orbit with all systems functioning normally. The current orientation of the ISS has the Unity module facing the Earth and the Zarya module facing deep space. The station is also in a slow rotation at one revolution every 30 minutes to maintain the proper heating and cooling. The next shuttle assembly mission to the station is STS-96, scheduled for launch aboard Discovery in May.

Cabana and his crewmates, Pilot Rick Sturckow, Mission Specialists Nancy Currie, Jim Newman, Jerry Ross and Sergei Krikalev will remain in Florida until Thursday morning when they are scheduled to return to Houston. The STS-88 crew are scheduled to land at Ellington Field, near the Johnson Space Center at approximately 10:30 a.m. CST where they will be welcomed home with a crew return ceremony.

sts-88-patch Return to STS-88 Mission Summary