Showing posts with label STS-133 mission. Show all posts
Showing posts with label STS-133 mission. Show all posts

SRB Systems Testing, Program Meeting Today

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At NASA's Kennedy Space Center in Florida, teams will disconnect ordnance on space shuttle Discovery's solid rocket boosters, or SRBs, and perform a test of the system's pyrotechnic initiator controller. Technicians will reconnect the ordnance for the SRBs and the ground umbilical carrier plate, or GUCP, today. Crews also will perform open and closed loop range safety checks.

The Space Shuttle Program will review the analysis and repairs that are required to safely launch shuttle Discovery on its STS-133 mission during a special Program Requirements Control Board session today. Pending a successful review of the flight rationale at that meeting, a Launch Status Briefing would be held with senior NASA management on Monday, Nov. 29 at Kennedy.

Kennedy's “Call-to-Stations” to begin the launch countdown will be no earlier than Nov. 30, supporting a first launch attempt no earlier than Dec. 3 at 2:52 a.m. EST.

Departure Preps for Station Crew Members

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After some time off over the weekend, the Expedition 25 crew aboard the International Space Station began another work week Monday with a focus on the departure of three of its crew members.
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Commander Doug Wheelock and Flight Engineer Shannon Walker continued ongoing training and preparations for their departure with Flight Engineer Fyodor Yurchikhin, who will serve as Soyuz commander during their descent. The trio is set to depart the station and return to Earth Nov. 25 at 11:46 p.m. EST (Nov. 26 at 10:46 a.m. Kazakhstan time) aboard the Soyuz TMA-19 spacecraft, landing in Kazakhstan a few hours later.

The Soyuz undocking will mark the beginning of Expedition 26 led by Commander Scott Kelly, currently an Expedition 25 flight engineer. Flight Engineers Alexander Kaleri and Oleg Skripochka will continue their stay aboard the station with Kelly.

Skripochka continued the process of unloading cargo from the ISS Progress 40 cargo craft that docked to the Pirs docking compartment in October. Once emptied, Progress 40 will be filled with trash and station discards and deorbited to burn in the Earth’s atmosphere like its predecessors.

Kelly conducted cooling loop maintenance on the U.S. spacesuits in preparation for spacewalks scheduled to be performed during the STS-133 mission next month.

Kaleri and Skripochka conducted a session with the Russian behavioral assessment TYPOLOGY, which measures a crew member's psychophysical state and ability to withstand stress, to perform and to communicate. An electroencephalogram measures and records the electrical activity of the brain.

Walker answered questions about life on the station and her daily activities during an in-flight interview with Dr. Neil deGrasse Tyson of the “StarTalk Radio” program.

Star Wars Meets UPS as Robonaut Packed for Space


Star Wars Meets UPS as Robonaut Packed for Space

Getting into space isn't necessarily easy for astronauts, and it's not much easier for a robotic astronaut, either.


Cocooned inside an aluminum frame and foam blocks cut out to its shape, Robonaut 2, or R2, is heading to the International Space Station inside the Permanent Multipurpose Module in space shuttle Discovery's payload bay as part of the STS-133 mission.

Once in place inside the station, R2, with its humanlike hands and arms and stereo vision, is expected to perform some of the repetitive or more mundane functions inside the orbiting laboratory to free astronauts for more complicated tasks and experiments. It could one day also go along on spacewalks.

Making sure the first humanoid robot to head into space still works when it gets there has been the focus of workers at NASA's Kennedy and Johnson space centers. Engineers and technicians with decades of experience among them packing for space have spent the last few months devising a plan to secure the 330-pound machine against the fierce vibrations and intense gravity forces during launch.

"I think back in May we realized we had a huge challenge on our hands," said Michael Haddock, a mechanical engineer designing the procedures and other aspects of preparing R2 for launch, including careful crane operations inside the Space Station Processing Facility's high bay.

Though it was fast-paced, intense work, the payoff of getting to help R2 into space added extra motivation for the engineers involved.

By spaceflight standards, planning for the packing effort moved quite quickly, particularly considering R2 is perhaps the heaviest payload to be taken into space inside a cargo module.

"The mass is what's driving the crane operations, otherwise we'd be handling the robot by hand," Haddock said. "But the robot itself weighs on the order of 333 pounds and when it is installed in the structural launch enclosure, it will weigh over 500 pounds."

As they must when loading anything for spaceflight, the engineers designed the packaging so astronauts could easily remove R2 from its launch box, known by its acronym SLEEPR or Structural Launch Enclosure to Effectively Protect Robonaut.

There was talk of simply strapping the robot into the empty seat on the shuttle's middeck, Higginbotham said, but R2 was too heavy for that. So the teams came up with a plan to fasten R2 to a base plate and use struts to support the back and shoulders. Then dense foam will provide more support, followed by an aluminum frame. A clamshell of foam tops off the package.

Assembling the packing precisely is important for R2 because a space shuttle accelerates to more than three times the force of gravity during its eight-minute climb into orbit.

Coincidentally, detailed analysis showed that R2's best position to withstand the launch forces will be the same as the astronauts -- facing toward the nose of the shuttle with the back taking all the weight.

"The orientation is just like the crew flies," Koby said. "The crew will be facing straight up on their backs and Robonaut will be the same direction, obviously 30 feet behind them in the module here."

Although the robot is fundamentally a very complex machine full of state-of-the-art sensors and operated by phenomenally sophisticated software, it is its shape that stirs fascination. Designed by NASA and General Motors as a robotic assistant for astronauts working in space, R2 looks like the upper torso of a sculpted bodybuilder and is topped with a helmeted head that includes two cameras to give it three-dimensional vision plus other sensors.

Its look has been compared to Star Wars bounty hunter Boba Fett, the endoskeleton from the Terminator films and the animated robot that plays football on Fox Sports.

It also has a pair of beefy arms and two hands, complete with four fingers and one thumb each, that can shake hands. Its programming is sensitive enough to respond to a handshake with the same amount of force as the person squeezing R2's hands. In other words, it can hold a piece of equipment in space without crushing it.

"It really grabs people's attention," said Higginbotham. "It's so incredibly cool. It can use the same tools and procedures as an astronaut."

This Robonaut was not meant to fly at first. Instead, it was strictly a developmental model to be tested and perfected on the ground. However, it was adapted for flight and has tested well for launch. That is a bit of a theme for the STS-133 mission because the Permanent Multipurpose Module that Discovery is taking to the station also was retrofitted to add more capabilities. The PMM was formerly a Multipurpose Logistics Module known as Leonardo and was built to stay in space for only short periods at a time. But its mission has changed and engineers built up its armor and added some interior features so it can be permanently attached to the station and used as more of a storage closet than the moving van first envisioned.

"Someone said this mission is anything but ordinary," said Higginbotham, "and that is a fact."