Space

February 1, 2013

Northrop Grumman completes all flight optics for NASA’s James Webb Space Telescope with delivery of the aft-optical system

REDONDO BEACH, Calif. – Northrop Grumman accepted delivery of the aft-optical system from teammate Ball Aerospace, marking the completion of all flight optics for NASA’s James Webb Space Telescope.

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

The AOS is a precision beryllium rectangular optical bench that houses the tertiary mirror and the fine steering mechanism installed at the center of the Webb Telescope’s primary mirror. The AOS is surrounded by a shroud to eliminate stray light and two large radiator panels to keep the assembly cold. This subsystem collects and focuses the light from the secondary mirror and feeds it into the science instruments.

“Our teammates at Ball Aerospace have done an excellent job on all of the optical elements, including the testing and completion of the aft-optical system,” said Scott Texter, Webb Optical Telescope Element manager for Northrop Grumman Aerospace Systems.

Since May 2012, the AOS has undergone a series of thermal, vibration and cryogenic testing to demonstrate that it can withstand the rigorous vibration environment of launch and remain precisely aligned to function at extremely cold temperatures in space. The system successfully completed all performance testing earlier this month.

“This was a unique technical challenge, requiring unprecedented fabrication and testing of the mirrors to ensure operation at the cryogenic temperature of 40 Kelvin,” said Texter.

The AOS will remain at Ball Aerospace to be used in integrated testing with the flight actuator drive unit. The team will finish building the cryogenic electronics that control the mirrors and the source plate assembly that is used to test the complete Optical Telescope Element for the Webb Telescope.




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


 
 

 

Headlines September 15, 2014

News: Navy identifies pilot presumed dead in crash - A Navy fighter pilot presumed dead after two fighter jets crashed in the far western Pacific Ocean has been identified.   Business: Boeing eyes 737-700 solution for new JSTARS - Boeing is officially planning a variant of its 737-700 commercial jetliner as a competitor for the Air Force’s...
 
 

News Briefs September 15, 2014

Australia contributing planes for anti-IS campaign Australia is preparing to contribute 600 troops and up to 10 military aircraft to the increasingly aggressive campaign against the Islamic State extremists in Syria and Iraq, Prime Minister Tony Abbott said Sept. 14. Abbott said Australia was responding to a formal request from the United States for specific...
 
 
Courtesy graphic

Lockheed Martin conducts flight tests of aircraft laser turret for DARPA

AFRL photograph The Aero-adaptive Aero-optic Beam Control turret that Lockheed Martin is developing for the Defense Advanced Research Projects Agency and the Air Force Research Laboratory has completed initial flight testing. T...
 

 

Lockheed Martin advances live, virtual, constructive training in flight test

https://www.youtube.com/watch?feature=player_embedded&v=jvXmOW8L3mU Lockheed Martin successfully tested a new solution for integrated live, virtual and constructive training during a flight demonstration at the company’s Aeronautics facility in Fort Worth, Texas. During the flight test, a pilot flying in a live F-16 engaged in a synthetic training exercise with a pilot flying as wing...
 
 
Image courtesy of NASA/JPL-Caltech/Univ. of Arizona

NASA’s Mars Curiosity rover arrives at Martian mountain

NASA’s Mars Curiosity rover has reached the Red Planet’s Mount Sharp, a Mount-Rainier-size mountain at the center of the vast Gale Crater and the rover mission’s long-term prime destination. “Curiosity n...
 
 

Raytheon begins full rate production on TALON Laser Guided Rockets

Under a $117 million contract awarded to Raytheon, Raytheon Missile Systems has begun production of the TALON Laser Guided Rocket. In 2013, the Armed Forces General Headquarters of the United Arab Emirates awarded Tawazun a contract to procure the TALON Laser Guided Rocket. “Full rate production of the TALON LGR is a significant milestone for...
 




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>