NASA Moving Toward Tuesday Launch Attempt For Shuttle Discovery

July 21, 2005
Space shuttle Discovery

With some work still to go, NASA is moving toward a new launch attempt for the Space Shuttle Discovery Tuesday, July 26, at 10:39 a.m. EDT. Engineers are wrapping up a troubleshooting plan to address a fuel sensor system issue that caused Space Shuttle managers to scrub the first launch attempt for the Return to Flight mission, STS-114.

At a meeting today of the Mission Management Team, Shuttle managers decided on a plan to complete outstanding work on the External Tank's liquid hydrogen low-level fuel sensor system circuit that runs from the External Tank into the Orbiter. The plan outlines a series of steps that could culminate in a launch next Tuesday. First, engineers will complete tests to look at electromagnetic interference as a factor in the sensor system circuit malfunction. Then, workers will swap circuits for two of the sensors to provide a means to isolate the problem to the wiring or the point sensor box, should the problem recur during the countdown. Next, engineers will shore up the electrical grounding to reduce further the chance of electromagnetic interference with the sensor system.

For a Tuesday launch, the official launch countdown for Discovery will begin Saturday. During the countdown, engineers will closely watch the behavior of the sensor system circuit as the tank is filled with super-cooled propellants.

Including the first launch attempt on Tuesday, there are at least four opportunities for Discovery to launch during the current launch window, which extends until July 31. NASA managers are also looking at the possibility of additional launch opportunities in the first week of August.

Source: NASA

Explore further: Are you OK with using your face to unlock your iPhone?

Related Stories

Are you OK with using your face to unlock your iPhone?

September 14, 2017

Your passcode can be hacked, but your face is yours and yours alone. That's the thinking behind Apple's latest security measure, which is more high-tech and a bit more intimate than anything else on the market.

Intel says world's smallest 3G modem has been launched

August 27, 2014

Analysts say why not. Intel is going after its own comfortable stake in the mobile market, where connectivity for wearables and "Internet of Things" household items will be in high demand. Intel on Tuesday announced "the ...

NASA Go for Return to Flight Launch Attempt Tuesday

July 25, 2005

NASA gave the green light for a launch attempt Tuesday for Space Shuttle Discovery on its Return to Flight mission (STS-114). Launch is scheduled for 10:39 a.m. EDT, and it will be carried live on NASA TV.

NASA's space shuttle discovery rolls off launch pad tuesday

December 21, 2010

Space shuttle Discovery is scheduled to roll back from Launch Pad 39A to the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida for additional work related to its final scheduled mission. The first ...

Recommended for you

Mountain glaciers shrinking across the West

October 22, 2017

Until recently, glaciers in the United States have been measured in two ways: placing stakes in the snow, as federal scientists have done each year since 1957 at South Cascade Glacier in Washington state; or tracking glacier ...

When words, structured data are placed on single canvas

October 22, 2017

If "ugh" is your favorite word to describe entering, amending and correcting data on the rows and columns on spreadsheets you are not alone. Coda, a new name in the document business, feels it's time for a change. This is ...

Dawn mission extended at Ceres

October 20, 2017

NASA has authorized a second extension of the Dawn mission at Ceres, the largest object in the asteroid belt between Mars and Jupiter. During this extension, the spacecraft will descend to lower altitudes than ever before ...

Metacognition training boosts gen chem exam scores

October 20, 2017

It's a lesson in scholastic humility: You waltz into an exam, confident that you've got a good enough grip on the class material to swing an 80 percent or so, maybe a 90 if some of the questions go your way.

Carbon coating gives biochar its garden-greening power

October 20, 2017

For more than 100 years, biochar, a carbon-rich, charcoal-like substance made from oxygen-deprived plant or other organic matter, has both delighted and puzzled scientists. As a soil additive, biochar can store carbon and ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.