domingo, 30 de junio de 2013

NASA - Launch of NASA's New Solar Mission Rescheduled to June 27

 


The Pegasus rocket ignites to send NASA's IRIS spacecraft into orbit.
Image Credit: 
Image: NASA TV
NASA's Interface Region Imaging Spectrograph (IRIS) spacecraft launched at 10:27 p.m. EDT Wednesday from Vandenberg Air Force Base, Calif. The mission to study the solar atmosphere was placed in orbit by an Orbital Sciences Corporation Pegasus XL rocket. IRIS is a NASA Explorer Mission to observe how solar material moves, gathers energy and heats up as it travels through a little-understood region in the sun's lower atmosphere. This interface region between the sun's photosphere and corona powers its dynamic million-degree atmosphere and drives the solar wind. The interface region also is where most of the sun's ultraviolet emission is generated. These emissions impact the near-Earth space environment and Earth's climate. 
The Pegasus XL carrying IRIS was deployed from an Orbital L-1011 carrier aircraft over the Pacific Ocean at an altitude of 39,000 feet, off the central coast of California about 100 miles northwest of Vandenberg. The rocket placed IRIS into a sun-synchronous polar orbit that will allow it to make almost continuous solar observations during its two-year mission.

 Launch of NASA's New Solar Mission Rescheduled to June 27
 
 
WASHINGTON -- The launch of NASA's Interface Region Imaging Spectrograph (IRIS) mission is being delayed one day to 7:27 p.m. PDT (10:27 p.m. EDT) Thursday, June 27, from Vandenberg Air Force Base in California. Live NASA Television launch coverage begins at 6 p.m. PDT.

Because of a significant power outage at Vandenberg earlier this week, certain Western Range facilities will not be ready to support the original June 26 launch date. Range officials believe they will be able to restore power to the affected facilities in time to support a launch Thursday evening. Managers will assess the situation at the Launch Readiness Review Wednesday.

The launch of IRIS on an Orbital Sciences Corporation Pegasus XL rocket is targeted for the middle of a five-minute window.

IRIS is a NASA Small Explorer Mission to observe how solar material moves, gathers energy and heats up as it travels through a little-understood region in the sun's lower atmosphere. This interface region between the sun's photosphere and corona powers its dynamic million-degree atmosphere and drives the solar wind.

The drop of the air-launched Pegasus from Orbital's L-1011 carrier aircraft will occur over the Pacific Ocean at an altitude of 39,000 feet, about 100 miles northwest of Vandenberg off the central coast of California, south of Big Sur.

The IRIS News Center at Kennedy's Vandenberg Resident Office may be reached between 8 a.m. and 4:30 p.m. at 805-605-3051.

For complete details on media registration, media events, and live launch coverage on NASA TV, visit:

For NASA TV streaming video, schedule and downlink information, visit:

Extensive prelaunch and launch day coverage of the IRIS spacecraft will be available on NASA's home page at:

To view the IRIS webcast and launch blog, and learn more about the mission, visit:
NASA
Guillermo Gonzalo Sánchez Achutegui
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