彗星探査機ロゼッタ、休止状態から20日に再起動へ


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[January 20 AFP] It is launched ten years ago towards investigation of the comet which will approach in 2014, and the probe which suited hibernation will reboot from several years before on the 20th.
Having been launched in 2004 for the purpose of investigation of the チュリュモフ Gerasimenko (Churyumov-Gerasimenko) comet (67P) which approaches ? this year, The comet probe of the European Space Agency (European Space Agency, ESA) “Rosetta (Rosetta).”
Now, 7 billion km of circumferences of an inner solar system are gone around.
? Rosetta approached 3 times, the earth, and one Mars, attached vigor by the swingby using planetary gravity, and arrived at an 800 million-km point as planned in June, 2011.
The computer in Rosetta wakes up from hibernation and a reboot and the operation test of a system are done over 6 hours at 7:00 p.m. JST [ ? ] on the 20th.
since there is Rosetta in the distance far, it is altogether satisfactory — after things were checked — “– before the radio signal of all the system normal” arrives at the earth, it will be likely to take the time for 45 minutes.
It will go into the circumference orbit in 25 km of skies of a comet in ? August, and will analyze the surface of the earth of a comet by sensors, such as 11 cameras, a radar, microwave, and infrared rays.
The test prototype “フィラエ (Philae)” of refrigerator size will be dropped from Rosetta in a comet in ? and November.
フィラエ is due to conduct various kinds of experiments on the surface of the earth of a comet.
“I would like to know all about a comet.
One of the persons in charge who took charge of フィラエ, “They were a magnetic field, composition, temperature, and all”, and Mr. Amalia Ercoli フィンジ (Amalia Ercoli-Finzi) told.
(c)AFP/Laurent BANGUET




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