Space

December 20, 2013

NASA’s asteroid hunter spacecraft returns first images after reactivation

nasa-asteroid
NASA’s Near-Earth Object Wide-field Infrared Survey Explorer, a spacecraft that made the most comprehensive survey to date of asteroids and comets, has returned its first set of test images in preparation for a renewed mission.

NEOWISE discovered more than 34,000 asteroids and characterized 158,000 throughout the solar system during its prime mission in 2010 and early 2011. It was reactivated in September following 31 months in hibernation to assist NASA’s efforts to identify the population of potentially hazardous near-Earth objects. NEOWISE also can assist in characterizing previously detected asteroids that could be considered potential targets for future exploration missions.

“NEOWISE not only gives us a better understanding of the asteroids and comets we study directly, but it will help us refine our concepts and mission operation plans for future, space-based near-Earth object cataloging missions,” said Amy Mainzer, principal investigator for NEOWISE at NASA’s Jet Propulsion Laboratory in Pasadena, Calif. “The spacecraft is in excellent health, and the new images look just as good as they were before hibernation. Over the next weeks and months we will be gearing up our ground-based data processing and expect to get back into the asteroid hunting business, and acquire our first previously undiscovered space rock, in the next few months.”

Some of the deep space images taken by the spacecraft include a previously detected asteroid named (872) Holda. With a diameter of 26 miles, this asteroid orbits the sun between Mars and Jupiter in a region astronomers call the asteroid belt. The images tell researchers the quality of the spacecraft’s observations is the same as during its primary mission.

The spacecraft uses a 16-inch telescope and infrared cameras to seek out and discover unknown NEOs and characterize their size, albedo or reflectivity, and thermal properties. Asteroids reflect, but do not emit visible light, so data collected with optical telescopes using visible light can be deceiving.

Infrared sensors, similar to the cameras on NEOWISE, are a powerful tool for discovering, cataloging and understanding the asteroid population. Some of the objects about which NEOWISE will be collecting data could become candidates for the agency’s announced asteroid initiative.

NASA’s initiative will be the first mission to identify, capture and relocate an asteroid. It represents an unprecedented technological feat that will lead to new scientific discoveries and technological capabilities that will help protect our home planet. The asteroid initiative brings together the best of NASA’s science, technology and human exploration efforts to achieve President Obama’s goal of sending humans to an asteroid by 2025.

“It is important that we accumulate as much of this type of data as possible while the spacecraft remains a viable asset,” said Lindley Johnson, NASA’s NEOWISE program executive in Washington. “NEOWISE is an important element to enhance our ability to support the initiative.”

NEOWISE began as WISE. The prime mission, which was launched in December 2009, was to scan the entire celestial sky in infrared light. WISE captured more than 2.7 million images in multiple infrared wavelengths and cataloged more than 747 million objects in space, ranging from galaxies faraway to asteroids and comets much closer to Earth. NASA turned off most of WISE’s electronics when it completed its primary mission in February 2011.

Upon reactivation, the spacecraft was renamed NEOWISE with the goal of discovering and characterizing asteroids and comets whose orbits approach within 28 million miles from Earth’s path around the sun.

JPL manages the project for NASA’s Science Mission Directorate in Washington. The Space Dynamics Laboratory in Logan, Utah, built the science instrument. Ball Aerospace & Technologies Corp. of Boulder, Colo., built the spacecraft. Science operations and data processing take place at the Infrared Processing and Analysis Center at the California Institute of Technology in Pasadena. Caltech manages JPL for NASA.




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


 
 

 

NASA partners punctuate summer with spacecraft development advances

Spacecraft and rocket development is on pace this summer for NASA’s aerospace industry partners for the agency’s Commercial Crew Program as they progress through systems testing, review boards and quarterly sessions under their† Space Act Agreements with the agency. NASA engineers and specialists continue their review of the progress as the agency and partners move...
 
 

NASA seeks proposals for commercial Mars data relay satellites

NASA has issued a Request for Information to investigate the possibility of using commercial Mars-orbiting satellites to provide telecommunications capabilities for future robotic missions to the Red Planet. We are looking to broaden participation in the exploration of Mars to include new models for government and commercial partnerships, said John Grunsfeld, associate administrator of NASAR...
 
 
NASA photograph

NASA’s Chandra X-ray Observatory celebrates 15th anniversary

NASA photograph To celebrate the 15th anniversary of NASA’s Chandra X-ray Observatory, four new images of supernova remnants are being released. These spectacular cosmic vistas are the glowing debris fields that were crea...
 

 
NASA photograph

NASA begins engine test project for space launch system rocket

NASA photograph RS-25 rocket engine No. 0525 is positioned onto the A-1 Test Stand at NASAís Stennis Space Center in Mississippi preparation for a series of developmental tests. Engineers have taken a crucial step in preparing...
 
 

SSL selected to study asteroid retrieval for NASA

Space Systems/Loral, a leading provider of commercial satellites, announced July 18 that it was one of the companies selected by NASA to study system concepts and key technologies for NASA’s Asteroid Redirect Mission, which is expected to be a key part of the agency’s path to sending humans to Mars. SSL will conduct two studies;...
 
 
NASA image

NASA turns over next-gen air traffic management tool to FAA

NASA image As seen in this image, Terminal Sequencing and Spacing technology enables air traffic controllers to better manage the spacing between aircraft as they save both time and fuel and reducing emissions, flying more effi...
 




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>