Английская Википедия:2012 UE34
Шаблон:Use dmy dates Шаблон:Infobox planet
Шаблон:Mp is a sub-kilometer asteroid, classified as a near-Earth object of the Apollo group, approximately Шаблон:Convert in diameter. It was first observed on 18 October 2012, by Pan-STARRS at Haleakala Observatory on the island of Maui, Hawaii, in the United States.[1] The object was removed from the Sentry Risk Table on 29 December 2013.[2] On 8 April 2041 it will pass Earth at a nominal distance of Шаблон:Convert. Due to its presumed small size, it does not qualify as a potentially hazardous asteroid, despite its low Earth MOID.[3]
Orbit and classification
Шаблон:Mp is an Apollo asteroid, which are Earth-crossers and the largest subgroup in the near-Earth object population. It orbits the Sun at a distance of 0.996–1.22 AU once every 14 months (424 days; semi-major axis of 1.11 AU). Its orbit has an eccentricity of 0.10 and an inclination of 10° with respect to the ecliptic.[3] The body's observation arc begins with its official first observation at Haleakala in October 2012.[1]
Close encounters
Шаблон:Mp passed about Шаблон:Convert from Earth on 8 April 1991.[3] On 8 April 2041, the asteroid will pass about Шаблон:Convert from Earth. For comparison, the distance to the Moon is about 0.0026 AU (384,400 km).
It has an exceptionally low minimum orbital intersection distance with Earth of Шаблон:Convert, which translates into 0.36 lunar distances. Despite this exceptionally low theoretical distance, the asteroid is not listed as a potentially hazardous asteroid, due to its small size, represented by its proxy, an absolute magnitude of 23.3, which is below the defined threshold of 22 magnitude.[3]
Asteroid | Date | Nominal approach distance (LD) | Min. distance (LD) | Max. distance (LD) | Absolute magnitude (H) | Size (meters) |
---|---|---|---|---|---|---|
Шаблон:Mpl | 1914-12-31 | 0.606 | 0.604 | 0.608 | 19.4 | 279–900 |
Шаблон:Mpl | 1918-09-17 | 0.911 | 0.909 | 0.913 | 17.9 | 556–1795 |
Шаблон:Mpl | 1925-08-30 | 0.903 | 0.901 | 0.905 | 18.5 | 443–477 |
Шаблон:Mpl | 1936-01-06 | 0.553 | 0.553 | 0.553 | 23.2 | 48–156 |
Шаблон:Mpl | 1971-04-11 | 0.616 | 0.587 | 0.651 | 21.2 | 122–393 |
Шаблон:Mpl | 1976-10-17 | 0.854 | 0.853 | 0.855 | 22.3 | 73–237 |
Шаблон:Mpl | 1981-11-04 | 0.818 | 0.813 | 0.823 | 21.4 | 111–358 |
Шаблон:Mp | 1991-04-08 | 0.847 | 0.676 | 1.027 | 23.3 | 46–149 |
Шаблон:Mpl | 2001-11-08 | 0.454 | 0.318 | 3.436 | 20.7 | 153–494 |
2002 MN | 2002-06-14 | 0.312 | 0.312 | 0.312 | 23.6 | 40–130 |
Шаблон:Mpl | 2011-11-08 | 0.845 | 0.845 | 0.845 | 21.9 | 320–400 |
Шаблон:Mpl | 2011-12-03 | 0.904 | 0.901 | 0.907 | 23.2 | 48–156 |
2018 AH | 2018-01-02 | 0.773 | 0.772 | 0.773 | 22.5 | 67–216 |
Шаблон:Mpl | 2018-04-15 | 0.502 | 0.501 | 0.503 | 23.7 | 35–135 |
Шаблон:Mpl | 2028-06-26 | 0.647 | 0.647 | 0.647 | 18.2 | 921–943 |
99942 Apophis | 2029-04-13 | 0.0981 | 0.0963 | 0.1000 | 19.7 | 310–340 |
Шаблон:Mp | 2041-04-08 | 0.283 | 0.274 | 0.354 | 23.3 | 46–149 |
Шаблон:Mpl | 2047-06-06 | 0.789 | 0.251 | 38.135 | 22.4 | 70–226 |
Шаблон:Mpl | 2058-09-22 | 0.918 | 0.917 | 0.919 | 23.8 | 37–119 |
Шаблон:Mpl | 2065-05-28 | 0.865 | 0.856 | 0.874 | 20.7 | 153–494 |
Шаблон:Mp | 2075-11-08 | 0.592 | 0.499 | 0.752 | 21.9 | 320–400 |
Шаблон:Mpl | 2101-01-02 | 0.621 | 0.615 | 0.628 | 21.0 | 133–431 |
Шаблон:Mpl | 2129-10-19 | 0.239 | 0.155 | 0.381 | 22.7 | 61–197 |
101955 Bennu | 2135-09-25 | 0.780 | 0.308 | 1.406 | 20.19 | 472–512 |
Шаблон:Mpl | 2140-12-01 | 0.634 | 0.631 | 0.637 | 19.3 | 427–593 |
Шаблон:Mpl | 2146-03-23 | 0.896 | 0.744 | 1.288 | 22.8 | 58–188 |
Шаблон:Mpl | 2148-01-22 | 0.771 | 0.770 | 0.771 | 21.1 | 127–411 |
Шаблон:Mpl | 2156-02-13 | 0.685 | 0.652 | 6.856 | 22.9 | 56–179 |
Шаблон:Mpl | 2156-12-16 | 0.998 | 0.955 | 1.215 | 21.6 | 101–327 |
Numbering and naming
This minor planet has not been numbered by the Minor Planet Center and remains unnamed.[1]
Physical characteristics
Based on a generic magnitude-to-diameter conversion, Шаблон:Mp measures 66 meters in diameter, for an absolute magnitude of 23.3 and an assumed albedo of 0.20, which is typical for stony S-type asteroids. In the unusual case of being a carbonaceous asteroid with a low albedo of 0.05, Шаблон:Mp may be as large as 130 meters in diameter.[4]
References
External links
- MPEC 2012-U61 : 2012 UE34, Minor Planet Electronic Circular, 20 October 2012
- MPEC 2019-N158 : 2012 UE34, Minor Planet Electronic Circular, 14 July 2019
- Шаблон:YouTube Шаблон:Small, includes discussion of Шаблон:Mp
- Шаблон:Mp at NEODyS-2
- Physical facts sheet, European Asteroid Research Node (EARN), 18 October 2012
- List Of The Potentially Hazardous Asteroids (PHAs), Minor Planet Center
- Шаблон:NeoDys
- Шаблон:ESA-SSA
- Шаблон:JPL small body
Шаблон:S-start Шаблон:S-bef Шаблон:S-ttl Шаблон:S-aft Шаблон:End
Шаблон:Small Solar System bodies Шаблон:Authority control
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