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SPACE SCOPES
NASA Provides a Super-speed Look at Webb Telescope Progress
by Rob Gutro for Goddard Space Flight Center
Greenbelt MD (SPX) Apr 02, 2013


NASA and Canadian Space Agency (CSA) engineers install the Fine Guidance Sensor (FGS) / Near-InfraRed Imager and Slitless Spectrograph (NIRISS) instrument package onto the Webb Telescope's Integrated Science Instrument Module (ISIM). This is a time Lapse of FGS/NIRISS installation into the ISIM structure on February 28, 2013 in the NASA Goddard Space Flight Center clean room. Credit: NASA/Chris Gunn

NASA released a new sped-up, 32-second video that shows engineers working on some of the James Webb Space Telescope's flight components to integrate them together to ensure they will work perfectly together in space.

The "NASA Webb Clean Room at Super-speed" video was filmed in the giant clean room at NASA's Goddard Space Flight Center in Greenbelt, Md., and produced at Goddard. Testing of the two flight instruments that have been delivered to Goddard has been ongoing in the past several months.

Engineers and scientists at Goddard have begun assembling the four science instruments together. In a recently released video from NASA clean room personnel are shown installing the Fine Guidance Sensor (FGS) instrument into a larger structure called the Integrated Science Instrument Module (ISIM) structure. The ISIM structure is the larger skeletal structure in the video, and the FGS is the object on the end of a balance beam being moved by a crane.

"This is the integration of the FGS/NIRISS instrument onto the ISIM structure," said Scott Lambros, Webb Instrument systems manager at Goddard. "This is the first of the four instruments to be integrated on the structure and is a very exciting time. It clearly shows we are moving into a new phase, from development, into the integration and then testing phase."

The FGS is actually one half of a combination instrument with the Near-Infrared Imager and Slitless Spectrograph (NIRISS) science instrument. The FGS will enable the telescope to accurately and precisely point at the correct, intended objects for it to observe.

"The Webb telescope fine guidance sensor which provides pointing stability, or image stabilizer control, has been installed and being readied for testing together with other instruments in the ISIM," said Ray Lundquist, ISIM systems engineer at Goddard.

The FGS is packaged together as a single unit with the NIRISS science instrument and is developed and provided by the Canadian Space Agency and its prime contractor, COM DEV.

The ISIM is the whole integrated system of instruments on the Webb. It's one of four major elements that comprise the Webb Observatory flight system. It contains the four science instruments that will detect light from distant stars and galaxies, and planets orbiting other stars. The ISIM itself provides electrical, computational and heat management services for the science instruments.

"The MIRI instrument will be the next to be integrated onto the structure within the next month, with the NIRCam and NIRSpec instruments to follow later this year," Lambros said.

Another video was released last year produced by the Space Science Telescope Institute of Baltimore, Md., in the "Behind the Webb" series. That video, called "Canada's Dynamic Duo," took viewers behind the scenes where the instruments were created, and is on-line.

The most powerful space telescope ever built, Webb is the successor to NASA's Hubble Space Telescope. Webb's four instruments will reveal how the universe evolved from the big bang to the formation of our solar system. Webb is a joint project of NASA, the European Space Agency and the Canadian Space Agency.

The video is available on a NASA website in HD here.

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Related Links
James Webb Space Telescope
Space Telescope News and Technology at Skynightly.com






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SPACE SCOPES
Practice Makes Perfect With Webb Telescope Mirror Placement
Greenbelt MD (SPX) Mar 25, 2013
NASA engineers and scientists have been making practice runs to ensure the placement of primary mirror segments on the James Webb Space Telescope go perfectly when the flight equipment is ready. NASA issued a video and photos showing the practice run in the giant clean room at NASA's Goddard Space Flight Center in Greenbelt, Md. The video explains and shows how a grey/silver robotic "arm" ... read more


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