Английская Википедия:2012 KT42
Шаблон:Use dmy dates Шаблон:Infobox planet Шаблон:Mp is an Apollo near-Earth asteroid first observed by astronomer Alex R. Gibbs of the Mount Lemmon Survey with a 1.5-meter reflecting telescope on 28 May 2012.
Overview
The asteroid had a close approach to the Earth on 29 May 2012, approaching to only ~8950 miles (~14,440 km) above the planet's surface. This means Шаблон:Mp came inside the Clarke Belt of geosynchronous satellites. In May 2012, the estimated 5- to 10-metre-wide asteroid ranked #6 on the top 20 list of closest-approaches to Earth. There was no danger of a collision during the close approach. Шаблон:Mp passed roughly Шаблон:Convert from Venus on 8 July 2012.[1]
It is estimated that an impact would produce an upper atmosphere air burst equivalent to 11 kt TNT,[2] roughly equal to Hiroshima's Little Boy. The asteroid would be vaporized as these small impacts occur approximately once per year. A comparable-sized object caused the Sutter's Mill meteorite in California on 2 April 2012. It was removed from the Sentry Risk Table on 30 May 2012.[3]
References
External links
- JPL Small-Body Database Browser for 2012 KT42
- 2012 KT42 - Close Approach (Remanzacco Observatory in Italy)
- Images from Flyby (spaceweather.com)
- MPEC 2012-K66 : 2012 KT42 (Minor Planet Center Discovery announcement)
- Planetary Defense Blog post on 2012 KT42
- Video: Tiny Asteroid 2012 KT42 Crossing The Sky (universetoday 29 May 2012)
- The Peculiar Flyby of Asteroid 2012 KT42 (Pasquale Tricarico : 29 May 2012)
- Шаблон:NeoDys
- Шаблон:ESA-SSA
- Шаблон:JPL small body
Шаблон:2012 in space Шаблон:Planetary defense Шаблон:Small Solar System bodies Шаблон:Authority control
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