November 20, 2013 UpdatedHayabusa2 Small Carry-on Impactor undergoes test
Hayabusa2’s Small Carry-on Impactor (SCI) underwent a test in October, 2013.
The SCI is a device to create an artificial crater of the asteroid 1999JU3, which the Hayabusa 2 will travel toward. By making and observing an artificial crater, we can acquire data not only about the surface but also about the inside of the asteroid. In addition, by sampling near the crater, we can collect inside samples of the asteroid.
Hayabusa2 applies a method to throw a metal projectile against the asteroid with high speed to create an artificial crater. Through the test this time, we confirmed the accelerating part of the projectile while aiming to verify if its speed, configuration, and thrown direction precision met the design when the pyrotechnics, which were comparable to those of actual ones for the flight, were ignited to set off the projectile.
The test results were very impressive as the speed and configuration were almost as designed, and the direction precision was also good as the SCI precisely hit a target that was 100 meters away. We were able to successfully complete the performance confirmation test of the SCI pyrotechnic part.http://www.jaxa.jp/projects/sat/hayabusa2/index_e.html