Space

April 18, 2012

Northrop Grumman’s key spacecraft structure for Webb telescope passes design review

REDONDO BEACH, Calif. – NASA’s James Webb Space Telescope continues to move ahead rapidly, with Northrop Grumman completing engineering design of the structure that supports the sunshield and keeps it aligned.

The sunshield support structure has passed its Critical Design Review and is now ready to be manufactured. The structure will hold the sunshield in rigid alignment with the spacecraft so that Webb’s primary mirrors stay in the sun’s shadow and are able to remain cold to detect very faint infrared light.

“This sunshield support structure balances the sunshield’s weight and tension so that it remains stable. The structure is very strong, yet quite light, weighing only 63 kilograms or 139 pounds, while supporting the sunshield itself, which weighs 700 kilograms or 1,543 pounds,” explained Andy Cohen, Webb spacecraft manager, Northrop Grumman Aerospace Systems. “The spacecraft is the foundation for the entire observatory and it provides the stability, strength and vibration suppression that allows the telescope to operate as designed.”

The sunshield support structure also serves to align and stabilize the 30-foot-long sunshield deployment palettes on either side of the telescope. As the telescope unfolds in space after launch, the palettes move from vertical to horizontal and provide a platform for the sunshield layers to unfurl. Keeping the sunshield’s alignment from drifting is critical to ensuring that the mirrors stay in the sun’s shadow.

Work on Webb’s spacecraft continues to move forward with a primary spacecraft model completed at the company’s engineering and manufacturing facility in Redondo Beach. The model will be used for integration and access planning and development.

Northrop Grumman is under contract to NASA’s Goddard Space Flight Center in Greenbelt, Md. for the design and development of Webb’s sunshield, telescope and spacecraft.

Successor to the Hubble Space Telescope, the James Webb Space Telescope is the world’s next-generation space observatory. It will be the most powerful space telescope ever built. Webb will observe the most distant objects in the universe, provide images of the very first galaxies ever formed and study planets around distant stars. The Webb Telescope is a joint project of NASA, the European Space Agency and the Canadian Space Agency.

 




All of this week's top headlines to your email every Friday.


 
 

 

Headlines August 1, 2014

News: Military downsizing leaves U.S. too weak to counter global threats, panel finds - An independent panel appointed by the Pentagon and Congress said July 31 that President Obama’s strategy for sizing the armed services is too weak for today’s global threats. Defense industry funds flow to contenders for key House chairmanships - Four of the top...
 
 

News Briefs August 1, 2014

China allows foreign reporters at news conference Foreign reporters are being allowed to attend China’s Defense Ministry briefings for the first time, marking a small milestone in the increasingly confident Chinese military’s efforts to project a more transparent image. Restrictions still apply and there is no sign of an improvement in the generally paltry amount...
 
 
Army photograph by John Andrew Hamilton

Rapid Equipping Force, PEO Soldier test targeting device at White Sands Missile Range

Army photograph by John Andrew Hamilton SFC Justin Rotti, a combat developer from the Training and Doctrine Command Fire Cell, Fires Center of Excellence, uses a developmental hand held precision targeting device during a test ...
 

 

NASA awards modification for geophysics, geodynamics, space geodesy support contract

NASA has awarded a modification to Stinger Ghaffarian Technologies Inc. of Greenbelt, Md. to continuing working the the Geophysics, Geodynamics and Space Geodesy Support Services contract. The maximum ordering value of the GGSG contract will increase to $76.8 million. The previous amount was $49.5 million. The increase in the maximum ordering value of the contract...
 
 
boeing-japan

Boeing, All Nippon Airways finalize order for 40 wide-body airplanes

  Boeing and All Nippon Airways July 31 finalized an order for 40 widebody airplanes – 20 777-9Xs, 14 787-9 Dreamliners and six 777-300ERs (Extended Range) – as part of the airline’s strategic long-haul fleet ren...
 
 

Excalibur Ib enters full rate production, receives $52 million award

TUCSON, Ariz., July 31, 2014 /PRNewswire/ — Raytheon’s Excalibur Ib precision guided projectile has entered full rate production. U.S. Army approval of FRP completes Excalibur Ib’s low rate initial production phase. †Additionally, the U.S. Army has awarded Raytheon $52 million for continued Excalibur Ib production. “The full rate production decision is the culmination ...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>