Английская Википедия:2014 MV67
Шаблон:Use dmy dates Шаблон:Infobox planetШаблон:Mp (also written 2014 MV67) was a lost asteroid with an observation arc less than 1 day. It had an assumed orbital eccentricityШаблон:Efn and a very poorly constrained orbit.[1] Depending on the orbit, it could have been a potentially hazardous asteroid, roughly Шаблон:Convert in diameter, or it could turn out to be a Mars-crosser or even a main-belt asteroid as were the cases with Шаблон:Mpl and Шаблон:Mpl.Шаблон:Efn It was recovered by Pan-STARRS in September 2021 and is now known to be a Mars-crossing asteroid.[1]
Description
Main belts asteroids can have perihelia (closest approach to the Sun) as low as 1.7 AU.[2] The 22 March 2022 impact scenario was 87,000 times lower than the background threat generated by unknown asteroids.Шаблон:Efn It was removed from the Sentry Risk Table on 15 April 2021 when JPL transitioned to planetary ephemeris DE441.
It was discovered on 24 June 2014, when the asteroid was estimated to be Шаблон:Convert from Earth and had a solar elongation of 161 degrees.
The 22 March 2018 and 3 April 2019 virtual impactors did not occur.[3] The uncertainty region of Шаблон:Nowrap wraps around the entire orbit so the asteroid could be anywhere on any of the numerous orbit fits. It could be near aphelion (in the asteroid belt) ~3 AU from the Sun.Шаблон:Efn The asteroid was not expected to be near Earth anytime during 2019.[4]
With an almost meaningless 1-day observation arc, the Sentry Risk Table showed an estimated 1 in 3 billion chance of the asteroid impacting Earth on 22 March 2022,[3] which was 87,000 times lower than the background threat.Шаблон:Efn The nominal JPL Horizons 22 March 2022 Earth distance is Шаблон:Convert with a 3-sigma uncertainty of Шаблон:Nowrap.[5] NEODyS also lists the nominal 22 March 2022 Earth distance as Шаблон:Convert.[6] And again it is not expected to be near Earth anytime during 2022.[6]
| Date | Impact probability (1 in) |
JPL Horizons[7] nominal geocentric distance (AU) |
NEODyS nominal geocentric distance (AU) |
MPC[8] nominal geocentric distance (AU) |
Find_Orb nominal geocentric distance (AU) |
uncertainty[7] region (3-sigma) |
|---|---|---|---|---|---|---|
| 2018-03-22 | 1.9 billion | Шаблон:Convert | Шаблон:Convert | Шаблон:Convert | Шаблон:Convert | ±600 million km |
| 2019-04-03 | 2.1 billion | Шаблон:Convert | Шаблон:Convert[4] | Шаблон:Convert | Шаблон:Convert | ±600 million km |
| 2022-03-22 | removed | Шаблон:Convert[5] | Шаблон:Convert[6] | Шаблон:ConvertШаблон:Efn | Шаблон:Convert[9] | ±3 billion km[5] |
| 2025-03-26 | removed | Шаблон:Convert | Шаблон:Convert | Шаблон:Convert | Шаблон:Convert | ±2 billion km |
See also
Notes
References
External links
Шаблон:Small Solar System bodies
- ↑ 1,0 1,1 Ошибка цитирования Неверный тег
<ref>; для сносокMPC-objectне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокMBAне указан текст - ↑ 3,0 3,1 3,2 Ошибка цитирования Неверный тег
<ref>; для сносокsentryне указан текст - ↑ 4,0 4,1 Ошибка цитирования Неверный тег
<ref>; для сносокNEODyS2019не указан текст - ↑ 5,0 5,1 5,2 Ошибка цитирования Неверный тег
<ref>; для сносокHorizons2022не указан текст - ↑ 6,0 6,1 6,2 Ошибка цитирования Неверный тег
<ref>; для сносокNEODyS2022не указан текст - ↑ 7,0 7,1 Ошибка цитирования Неверный тег
<ref>; для сносокHorizonsне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокMPC-ephне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокFind_Orb2022не указан текст
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