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January 24, 2012

1st International Announcement of Opportunity for HAYABUSA Sample Investigation

Japan Aerospace Exploration Agency (JAXA) has been engaged in initial analysis of Itokawa’s sample brought back by HAYABUSA. On this occasion we would like to inform you of offering the announcement of opportunity for HAYABUSA Sample Investigation.
Through the peer review, JAXA will provide HAYABUSA sample to researcher who submits research proposal in the framework of this Announce of 0pportunity (herein after referred as "AO"). This AO is planned to be conducted a few times. The 1st International AO issues on January 24th 2012.


Outline of HAYABUSA

Asteroids are thought to be celestial bodies that preserve information from the time of the Solar System's formation. If we collect a sample from an asteroid and bring it back to Earth to carry out precise research on it, we can gain some
precious clues to understand the origin and evolution of the Solar System.

Bringing back a sample from a celestial body in the Solar System is called "Sample Return." "HAYABUSA" is a probe to verify the practicality of acquired technology developed to archive future full-scale "sample return missions."

"HAYABUSA' was launched aboard the M-V Launch Vehicle on May 9,2003. It was accelerated by a swing-by of the Earth in May 2004 and reached its target Asteroid Itokawa on September 12,2005, after traveling about 2 billion kilometers. in September and October that year, "HAYABUSA" completed the most remote-sensing and measurement of the geometry of Itokawa and made two landings in November to collect a sample from Itakawa.

Through scientific observations performed during "HAYABUSA's" stay on Itokawa various knowledge was obtained including on its gravity and surface condition. The achievements of "HAYABUSA" were featured in the scientific magazine, "Science."

Overview Asteroid Explorer Information about HAYABUSA

May 9, 2003 Launched by the M-V-5 Rocket from Kagoshima Space Center.
May 27, 2003 Ion Engine operation started.
May 19, 2004 Orbit transfer using the Electric Propelled Delta-V Earth Gravity Assist
July 29, 2005 Performed the Star Tracker imaging of Itokawa.
September 12, 2005 Arrived at Itokawa. (about 20km away)
September 30, 2005 Arrived at the Home Position (about 7km away).
November 12, 2005 Released the probing robot ”Minerva”.
November 20, 2005 Performed the first touch down and release of the target marker with 880,000 autographs inside.
November 26, 2005 Performed the second touchdown.
December 8, 2005 Lost communication with the earth due to operation rupture by fuel leakage.
January 23, 2006 Resumed communication and operation.
January 18, 2007 Sample-catcher was actually transferred into the recovery capsule, and latched and sealed.
February, 2007 The ion engines ignited and operated again.
April 25, 2007 The homeward journey with an ion engine drive was started.
October 18, 2007 Finished first phase orbit maneuver toward Earth.
End of May, 2008 Reached the farthest deep space from the Earth.
February 4, 2009 Firing ion engine and starting second phase orbit maneuver to return to Earth.
November 4, 2009 Ion engine anomaly.
November 19, 2009 Resumed cruise by combining two partially working ion engines.
March 27, 2010 Finished second phase orbit maneuver toward Earth.
April to June, 2010 Trajectory Correction Maneuvers (TCMs)
June 13, 2010 Back to the Earth , capsule recovered.
July 5, 2010 Small particles found in the sample container.
November 16, 2010 Particles brought back by Hayabusa identified as from Itokawa

Mission Profile

Launch Vehicle M-V-5
Launch Location Kagoshima Space Center (Uchinoura)
Dimensions Core 1.0m x 1.1m x 1.6m
6.0m full width at deployment of solar paddle
Weight 510kg

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