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Indian Army successfully test fires Agni-II IRBM for the third time। Agni-II is nuclear capable। The firing on February 20 in full operational configuration। DAC clears proposals worth Rs 15,935 Cr (approx $2.2b) । The approval covers purchae of Rifles, Carbines and Light Machine Guns for the Army, Navy and Air Force । New weapons are required by the Indian Army’s for effective engagement of Pakistani infiltrations । Leading Pakistani human rights activist Asma Jahangir passes away । Globally respected for her liberal views, she was a strong pro-democracy activist । SpaceX Launches the World’s Most Powerful Rocket, and aboard it, Mr Musk’s electric red sports Car । “It’s kind of silly and fun, but silly and fun things are important,” he said Feb 6। Mr Elon Musk owns both SpaceX, the world’s biggest space company, as well as Tesla cars। SpaceX’s Falcon 9 rocket has ferried payload to Space Station but this time, rocket is turbocharged। For the first time, NASA was not involved in launching such a heavy rocket। Singapore Airshow Opens Feb 6 । Boeing, Lockheed Martin, Raytheon, Airbus, Sikorsky, and the global biggies are taking part । Honeywell Provides Fuel Made From Mustard Seeds For Trans-Pacific Flight । Russia views India as a Privileged Partner, says Rostec CEO Chemezov । US Carrier Carl Vinson to make first ever visit to Vietnam in March । Carl Vinson woll dock at Da Nang, apparently boosting bilateral military cooperation । Happy Republic Day to All Indians । Emirates signs agreement for up to 36 additional A380s । India successfully test fires 5000-Km A380s ICBM। Defexpo to be held April 11-15 in Tamil Nadu, India’s southern state। HAL receives RfP for 83 LCA Tejas from IAF। The new LCAs will have AESA combat Radar। IAF had announced the decision for new LCAs sometime back। INS Kalvari commissioned into Indian Navy December 14। Prime Minister Modi ceremonially inducted the Scorpene class boat in Mumbai। Built by state-run MDL with French collaboration, Kalvari is the first submarine inducted after 2000। Modi described the Kalvari as a fine example of Make in India। Five more Kalvari Class submarines are to be commissioned over the next couple of years।
February 23, 2018
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Northrop Grumman’s Astro Aerospace Delivers Mission Critical Capability for NASA’s James Webb Space Telescope

Published: June 2017
 

CARPINTERIA, Calif. June 26. Northrop Grumman Corporation reached another major milestone for NASA’s James Webb Space Telescope, with the delivery of the mid-boom assemblies. The graphite-epoxy assemblies were designed, built, and tested by Astro Aerospace, a Northrop Grumman business.

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Northrop Grumman’s Astro Aerospace Delivers Mission Critical Capability for NASA’s James Webb Space Telescope
NASA’s James Webb Space Telescope is made up of four major components — the telescope, the integrated science instrument module, the spacecraft and the sunshield. The two boom assemblies will help deploy the large sunshield once Webb is in orbit. The assemblies were delivered following successful environmental testing at Astro Aerospace to Northrop Grumman’s Space Park facility in Redondo Beach, California.

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

The mid-boom assemblies attach to the sides of the spacecraft bus and extend in length to deploy the sunshield. Each one consists of six telescoping graphite-epoxy composite tubes, one nested inside the other, with Astro Aerospace’s tempered pre-curved stainless steel strip, or Storable Tubular Extendible Member (STEM™), inside that is wound on a motorized spool at the root end, some stainless steel cables, and a set of pulleys and springs on the tip end. The mid-booms work much like a deployable car antenna. As the STEM™ unwinds from its motorized spool, it curls onto itself to form a stiff tube that pushes the nested composite tubes out until the five movable tubes are fully extended and locked out. The tubes are constructed of graphite-epoxy composite material to be lightweight, stiff, and strong to ensure stability with extreme changes in temperature. As the mid-booms extend, they pull out Webb’s sunshield membranes with them, thereby unfolding them. Once the tubes are fully extended, the STEM™ is retracted which reels in a cable through pulleys at the tips of the boom which separate and properly tension each sunshield membrane. The mid-boom assemblies were designed and built by Astro Aerospace in Goleta, California.

“It is a major accomplishment for the team to develop, test, and provide our cutting-edge mid-boom assembly technology for NASA’s Webb telescope,” said John Alvarez, general manager, Astro Aerospace. “We are very excited to provide our one-of-a-kind mid-boom assemblies for Webb’s pioneering space mission.”

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

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