5 | A Hamster hitting on the Martian moon Phobos |
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Chomik ( Hamster in Polish ) is the name given to spike soon Geological responsible explore Phobos , the larger of the two moons of Mars. Developed by the Center for Space Research of the Polish Academy of Sciences ( CBK – Centrum Badan Kosmicznych ” in Warsaw) , Chomik be incorporated into the Russian space mission Phobos – Grunt . His task will be to penetrate the surface of Phobos , to determine the mechanical and thermal characteristics , and retrieve samples for analysis on Earth with a return capsule.
The constraints of the workplace , as well as the obvious technological constraints no lack : space block ” slapper ” limited to the size of a large jar of jam , and available capacity of the order of watts , obvious constraint of weight but also irregularity of the hardness of the probe body (an estimated 1.9 g/cm3 , a high porosity ) and a very low gravity allowing only low kickback when the drums. Engineers and scientists have again CBK show their know -how . They developed a tool : a large cylindrical capacitor accumulates the low energy available for release to the chosen frequency striker block , which is located in the center of the capacitor.
The choice of a space mission to Phobos is nothing trivial. Its low gravity will greatly facilitate the operations of landing and takeoff , the release rate (minimum velocity to escape the pull of the body) is indeed estimated at 11m / s, that of a 100 meter runner ! In addition , the distance Phobos – Mars 40 times lower than Moon – Earth and the lack of atmosphere is the perfect place to observe the red planet.
The spacecraft Phobos – Grunt is supposed to leave Earth in November 2011, aboard a Zenit rocket , while the capsule is expected in 2014 in Kazakhstan .
On this project, the CBK is working with the Institute of Space Research of Russian Academy of Sciences as well as the industrial ” Lavochkin Scientific Production Association. The partnership that these institutions have signed also mentions the participation of Polish scientists to the analysis of samples. Recall that the CBK has worked on several projects for the ESA and that has also collaborated on the design of instruments for the Cassini probe or Mars Express .
Source :
Press kit (in Polish ): http://press.cbk.waw.pl/10/cbk10040801/
| Category: Scientific Research | Tags: cylindrical capacitor, thermal characteristics |

