Space

June 17, 2013

NASA’s newest solar mission spacecraft ready for launch

The Interface Region Imaging Spectrograph spacecraft is on track for a launch from Vandenberg Air Force Base, Calif., June 26.

IRIS will fill a crucial gap in the ability of scientists to advance Sun-Earth connection studies by tracing the flow of energy and plasma through a dynamic interface region ñ the chromosphere and transition region ñ between the solar surface and the solar corona.

“The entire IRIS team is enormously pleased that we’ve reached this crucial milestone,” said Gary Kushner, Lockheed Martin IRIS program manager. “After many months of hard work by the Lockheed Martin team and all of our collaborators and subcontractors in designing, engineering, building and testing the instrument and integrated spacecraft, our goal of putting IRIS into orbit is in sight and we look forward to producing great science at a low cost.”

The goal of the IRIS program is to better understand how energy and plasma move from a lower layer of the sun’s surface called the photosphere, through the chromosphere layer and to the outer corona layer. Observation into this movement has been a fundamental challenge in Solar and Heliospheric science, and the IRIS mission will open a window of discovery into this crucial region by providing observations necessary to pinpoint physical forces at work in this little understood piece of real estate near the surface of the sun.

“The interpretation of the IRIS spectra is a major effort coordinated by the IRIS Science Team that will utilize the full extent of the power of the most advanced computational resources in the world. It is this new capability, along with development of state of the art codes and numerical models by the University of Oslo, that capture the complexities of this region, which make the IRIS mission possible. Without these important elements we would be unable to fully interpret the IRIS spectra,” said Dr. Alan Title, IRIS principal investigator and physicist at the ATC Solar and Astrophysics Laboratory in Palo Alto. “With IRIS, we have a unique opportunity to provide significant missing pieces in our understanding of energy transport on the sun. The complex processes and enormous contrasts of density, temperature and magnetic field within this interface region require instrument and modeling capabilities that are now finally within our reach.”

The IRIS observatory will fly in a sun-synchronous polar orbit for continuous solar observations on a two-year mission. It will obtain ultraviolet spectra and high-resolution images focused on the chromosphere and the transition region to the outer corona. Spectra will cover temperatures from 4,500 K to 107 K, with images covering temperatures from 4,500 to 65,000 K.

NASA’s Ames Research Center at Moffett Field, Calif. is responsible for mission operations and the ground data system. The Norwegian Space Centre and NASA’s Near Earth Network will provide the ground stations to support the IRIS mission using antennas at Svalbard, Norway, Fairbanks, Alaska, McMurdo, Antarctica and Wallops Island, Va. The science data will be managed by the Joint Science Operations Center of the Solar Dynamics Observatory, run by Stanford and Lockheed Martin. NASA’s Goddard Space Flight Center in Greenbelt, Md., manages the Explorers Program. NASA’s Launch Services Program at Kennedy Space Center, Fla., is responsible for launch management.

Part of NASA’s Small Explorers, which deliver space exploration missions costing less than $120 million, IRIS was designed and built at Lockheed Martin Space Systems Company Advanced Technology Center (ATC) in Palo Alto, Calif.† The program was developed with support from Lockheed Martin’s Civil Space line of business as well as partners Smithsonian Astrophysical Observatory, Montana State University, Stanford University and the University of Oslo.
Over the years, NASA’s Explorers Program has launched a number of Explorer spacecraft carrying a wide variety of scientific investigations. It provides access to space using one of several, lower-cost expendable launch vehicles available through NASA’s launch services program.

The ATC is the research and development organization of Lockheed Martin Space Systems Company (LMSSC) and creates the technology foundation for the company’s business. In addition, the ATC conducts research into understanding and predicting space weather and the behavior of our Sun, including its impacts on Earth and climate. It has a five-decade-long heritage of spaceborne instruments.

LMSSC, a major operating unit of Lockheed Martin Corporation, designs and develops, tests, manufactures and operates a full spectrum of advanced-technology systems for national security and military, civil government and commercial customers. Chief products include human space flight systems; a full range of remote sensing, navigation, meteorological and communications satellites and instruments; space observatories and interplanetary spacecraft; laser radar; ballistic missiles; missile defense systems; and nanotechnology research and development.




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


 
 

 

Headlines November 21, 2014

News: Dempsey lays groundwork for larger 2016 defense budget - The top U.S. military official on Wednesday made the case for growing the base defense budget significantly over the $535 billion spending cap imposed by Congress for fiscal 2015.   Business: Boeing can bill $61 million that Pentagon withheld for months - The Pentagon withheld $60.5 million...
 
 

News Briefs November 21, 2014

Obama aide: U.S. should look at Ukraine military aid A senior aide of President Barack Obama says he believes the U.S. should consider giving Ukraine lethal, defensive military assistance to get Russia to think twice about its destabilizing behavior. Tony Blinken, the deputy national security adviser, cites serious violations by Russia of agreements not to...
 
 
Air Force photograph by SrA. Divine Cox

Kunsan AB hosts Exercise Max Thunder 14-2

Air Force photograph by SrA. Divine Cox A South Korean air force F-15 Strike Eagle lands Nov. 17, 2014, during Max Thunder 14-2 at Kunsan Air Base, South Korea. U.S. Air Force, Army, Marine Corps and Navy personnel and aircraft...
 

 
LM-facility

Lockheed Martin opens Surface Navy Innovation Center

Lockheed Martin has opened the Surface Navy Innovation Center in Moorestown, N.J., to support the development of new technologies for the U.S. Navy. The SNIC is a research, development and demonstration facility that brings tog...
 
 
raytheon-test

Raytheon successfully demonstrates integrated electronic warfare capabilities

EL SEGUNDO, Calif. – Raytheon, in collaboration with the U.S. Navy, successfully demonstrated an end to end, first of its kind, integrated electronic attack system during flight tests at the Naval Air Weapons Station Chi...
 
 

Three bases identified as F-16 aggressor candidate bases

U.S. Air Force photo by Tech. Sgt. Joseph Swafford Jr. A U.S. Air Force F-16 Fighting Falcon fighter aircraft assigned to the 18th Aggressor Squadron lands at Eielson Air Force Base, Alaska, Oct. 6 during RED FLAG-Alaska 15-1. RF-A is a series of Pacific Air Forces commander-directed field training exercises for U.S. and partner nation...
 




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>