Subscribe to our free daily newsletters
  Space Travel News  




Subscribe to our free daily newsletters



ATK MicroSat Constellation Enables NASA To Solve Scientific Mystery

This image shows the 20 THEMIS ASI ground station locations. These ground stations assisted the THEMIS satellite constellation in measuring the Aurora Borealis over North America. Each ground station has an all-sky imaging white-light auroral camera and a magnetometer. The ground stations' radial coverage is rendered at 540km.
by Staff Writers
Minneapolis MN (SPX) Jul 29, 2008
Alliant Techsystems reports that the constellation of five micro satellites it built for NASA's THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission has successfully demonstrated how satellites can work together to collect data, which in this case, advances the scientific understanding of the Earth's atmosphere.

The THEMIS mission determined the cause of the shimmering effect of the Aurora Borealis, commonly referred to as the Northern Lights. Importantly, the mission advances the understanding and capabilities of small, affordable satellite constellations that can be used for future scientific, military, and commercial missions.

On February 28, 2008 the constellation of five satellites were lined up along the Sun-Earth line which was designed to occur once every 4 days. During this line-up scientists observed an isolated substorm onset.

In conjunction with part of the THEMIS ground base observatory system located in the North America, the satellites recorded intense auroral brightening and space currents.

With the combination of space measurements from the THEMIS satellite constellation and ground base systems scientists were able to determine the process by which the northern lights suddenly brighten and break into spectacular formations moving towards the poles. The science data appeared online July 24 in Science Express and will be in print on August 14 in the Journal of Science.

The THEMIS mission launched from Cape Canaveral Air Force Station on February 17, 2007 on a Delta-II 7925 launch vehicle. ATK provided nine strap-on GEM 40 boosters to provide augmented thrust during the launch.

The company's STAR 48B Third-stage rocket motor completed the separation and properly positioned the constellation of satellites for its eventual orbit that ensured mission success. The five spacecraft buses, built by ATK were integrated with a suite of magnetospheric physics instruments by the University of California at Berkeley (UCB) Space Sciences Laboratory (SSL) in collaboration with Germany, France and Austria.

"We are extremely proud to be part of such an extraordinary science accomplishment. The mission highlights the effectiveness of small, affordable satellite constellations to perform a variety of scientific, military, and commercial missions," said Frank Koester, Vice President and General Manager of ATK Spacecraft Systems.

"ATK's THEMIS constellation has enabled Scientists to understand the physics behind the onset and progression of substorms in the magnetosphere. These findings will also assist in a better understanding of space weather, which is crucial to designing more reliable space platforms."

ATK is a premier aerospace and defense company with more than 17,000 employees in 21 states and $4.5 billion in revenue. News and information can be found on the Internet at

Related Links
Alliant Techsystems (ATK)
Themis at NASA
Space Technology News - Applications and Research



Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


LockMart Demos High Power Electric Propulsion System For TSAT Program
Sunnyvale CA (SPX) Jul 29, 2008
The Lockheed Martin and Northrop Grumman Transformational Satellite Communications System (TSAT) Space Segment team has completed a successful demonstration of its new-generation High Power Hall Current Thruster (HPHCT) electric propulsion system designed for use on the U.S. Air Force's TSAT constellation.







  • Russia unveils new spacecraft design
  • Russian Set To Install Soyuz Launch Systems At Kourou
  • NASA Conducts Full-Scale Test Firing Of Orion Jettison Motor
  • NASA in talks for Japanese spacecraft

  • Arianespace Ready For Fifth Ariane 5 Launch Campaign
  • IBEX Spacecraft Takes Major Step Toward Launch
  • Success Of The 1734th launch Of Soyuz
  • South Korea's First Rocket Launch Might Be Put Off

  • External Tank ET-128 Sets New Standard During Recent Shuttle Mission
  • NASA Sets Launch Dates For Remaining Space Shuttle Missions
  • NASA shuttle to take last flight in May 2010
  • Disaster plan in place for Hubble mission

  • ISS Crew Inspired By Vision And Dreams Of Jules Verne
  • Space Station A Test-Bed For Future Space Exploration
  • Space chiefs ponder ISS transport problem, post-2015 future
  • Two Russian cosmonauts begin new space walk

  • Top US astronaut welcomes space tourism
  • NASA Tests Parachute For Ares Rocket
  • Oshkosh air show honors NASA anniversary
  • NASA, USDA sign space research pact

  • China Aims For World-Class Space Industry In Seven Years
  • Shenzhou's Spacesuit Showdown
  • China's Astronauts To Wear Domestic, Russian-Made Suits
  • Shenzhou's Unsuitable Dilemma

  • NASA Robots Perform Well During Arctic Ice Deployment Testing
  • Eight Teams Taking Up ESA's Lunar Robotics Challenge
  • Three Engineers, Hundreds of Robots, One Warehouse
  • Tartalo The Robot Is Knocking On Your Door

  • Phoenix Lander Working With Sticky Soil
  • KODAK Imaging Technology Explores Mars
  • Phoenix Revises Method To Deliver Icy Sample
  • Can People Live On Mars

  • The content herein, unless otherwise known to be public domain, are Copyright Space.TV Corporation. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space.TV Corp on any Web page published or hosted by Space.TV Corp. Privacy Statement