Английская Википедия:2007 VK184

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Шаблон:Use dmy dates Шаблон:Infobox planet Шаблон:Mp is a sub-kilometer asteroid, classified as a near-Earth object of the Apollo group, and estimated to be approximately Шаблон:Convert in diameter.[1] It was listed on the Sentry Risk Table with a Torino Scale rating of 1 for a potential impactor in June 2048.[1] It was removed from the Sentry Risk Table on 28 March 2014.[2]

2023

The asteroid will come to opposition on 24 April 2023 when it will have a solar elongation of 177 degrees and an apparent magnitude of 22.[3] Then on 15 July 2023 the asteroid will harmlessly pass Шаблон:Convert from Earth.[4]

Description

Шаблон:Mp was discovered on 12 November 2007 by the Catalina Sky Survey.[5] It was recovered on 26 March 2014 by Mauna Kea,[6][7] and removed from the Sentry Risk Table on 28 March 2014.[2] By 4 January 2008, with an observation arc of 52 days, there was a 1 in 2700 chance of an impact with Earth on 3 June 2048.[8] The Sentry Risk Table, using an observation arc of 60 days, showed the asteroid had a 1 in 1820 chance (0.055%) of impacting Earth on 3 June 2048.[1] Since the March 2014 recovery, it is known that the asteroid will pass Шаблон:Convert from Earth on 2 June 2048.[4]

2014 passage

Before the 2014 close approach, the asteroid had a modest observation arc of 60 days,[1] and the imprecise trajectory of this asteroid was complicated by close approaches to Earth, Venus and Mars.[4] On 23 May 2014, the asteroid passed Шаблон:Convert from Earth[4] and reached an apparent magnitude of ~20.8.[9] As expected the close approach allowed astronomers to recover the asteroid on 26 March 2014 and refine the odds of a future collision.[7] As the asteroid gets closer to Earth, the positional uncertainty becomes larger.[10] By recovering the asteroid well before closest approach you can avoid searching a larger region of the sky.[10] Most asteroids rated 1 on the Torino Scale are later downgraded to 0 after more observations come in.

Risk assessments were calculated based on a diameter of 130 meters.[1] It was estimated that, if it were ever to impact Earth, it would enter the atmosphere at a speed of 19.2 km/s and would have a kinetic energy equivalent to 150 megatons of TNT.[1] Assuming the target surface is sedimentary rock, the asteroid would impact the ground with the equivalent of 40 megatons of TNT and create a Шаблон:Convert impact crater.[11] Asteroids of approximately 130 meters in diameter are expected to impact Earth once every 11000 years or so.[11]

2048

On 26–27 March 2014, additional observations were made which ruled out the chance of an impact in 2048.[10] On 2 June 2048 the asteroid will pass 5 lunar distances from Earth[4] with a 3-sigma uncertainty region of ±Шаблон:Val.[12]

2118

By the Earth approach of June 2118 the known approaches become more divergent.

2118 Earth approach
Date Minimum
possible
approach 		Maximum
possible
approach
2118-Jun-06 ± 2 days Шаблон:Convert[4][13] Шаблон:Convert[4]

See also

  • 99942 Apophis, a NEO that, for a few days, was thought to have a slight probability of striking the Earth in 2029. But the likelihood that would happen was quickly determined to be zero.

Notes

Шаблон:Notelist

References

Шаблон:Reflist

External links

Шаблон:Planetary defense Шаблон:2014 in space Шаблон:Small Solar System bodies Шаблон:Authority control

Партнерские ресурсы
Криптовалюты
Магазины
Хостинг
Разное

  1. ↑ 1,0 1,1 1,2 1,3 1,4 1,5 Ошибка цитирования Неверный тег <ref>; для сносок Wayback131017 не указан текст
  2. ↑ 2,0 2,1 Ошибка цитирования Неверный тег <ref>; для сносок removed не указан текст
  3. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Horizons2023 не указан текст
  4. ↑ 4,0 4,1 4,2 4,3 4,4 4,5 4,6 Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPEC2007-V94 не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPEC2014-F50 не указан текст
  7. ↑ 7,0 7,1 Ошибка цитирования Неверный тег <ref>; для сносок MPC не указан текст
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Wayback2008 не указан текст
  9. ↑ Ошибка цитирования Неверный тег <ref>; для сносок NEODyS2014 не указан текст
  10. ↑ 10,0 10,1 10,2 Ошибка цитирования Неверный тег <ref>; для сносок news183 не указан текст
  11. ↑ 11,0 11,1 Ошибка цитирования Неверный тег <ref>; для сносок Earth-impact не указан текст
  12. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Horizons2048 не указан текст
  13. ↑ Ошибка цитирования Неверный тег <ref>; для сносок esa-ca не указан текст
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