Английская Википедия:(163249) 2002 GT
Шаблон:Use dmy dates Шаблон:Infobox planet
(163249) 2002 GT is an Apollo asteroid with an absolute magnitude of 18.26.[1] It is a potentially hazardous asteroid as its orbit crosses that of Earth.[2]
Description
In 2011, NASA considered sending the unmanned spacecraft Deep Impact toward the asteroid with the aim of performing a flyby[2] in 2020. It was uncertain whether Deep Impact carried sufficient fuel for this operation.[2]
On 24 November 2011 and 4 October 2012, the space probe's thrusters were fired briefly for two trajectory correction maneuvers that targeted Deep Impact for an encounter with 2002 GT in 2020, possibly within a distance of no more than 400 kilometers. However, funding for the flyby mission was not guaranteed.[3] In June 2013 the asteroid was observed in radar by the Arecibo Observatory.[4]
However, on 8 August 2013 NASA lost communication with the spacecraft, and on 20 September 2013, NASA abandoned further attempts to contact the craft.[5] According to A'Hearn,[6] the most probable reason of software malfunction was a Y2K-like problem (at 11 August 2013 0:38:49 it was 232 deciseconds from 1 January 2000[7]).
See also
References
External links
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
- ↑ Ошибка цитирования Неверный тег
<ref>; для сносокjpldataне указан текст - ↑ 2,0 2,1 2,2 Stephen Clark, "Deep Impact sets path for asteroid encounter in 2020". Spaceflight Now. 18 December 2011.
- ↑ Emily Lakdawalla blog entry: "Deep Impact targets possible 2020 asteroid flyby". 5 October 2012.
- ↑ Asteroid and Comet Mission Targets Observed by Radar (archived version, 19 Dec 2013)
- ↑ NASA calls off search for lost Deep Impact comet probe - Australian Broadcasting Corporation - Retrieved 21 September 2013.
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- Английская Википедия
- Apollo asteroids
- Discoveries by the Spacewatch project
- Potentially hazardous asteroids
- Astronomical objects discovered in 2002
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