Английская Википедия:(163899) 2003 SD220
Шаблон:Use dmy dates Шаблон:Infobox planet
Шаблон:Mp is a sub-kilometer asteroid and tumbling slow rotator, classified as near-Earth object and potentially hazardous asteroid of the Aten group, which orbit the Sun between Venus and Earth. Its orbital period of 0.75 years means that it orbits the Sun about 4 times for every 3 of the Earth. It was discovered on 29 September 2003, by astronomers of the Lowell Observatory Near-Earth-Object Search at Anderson Mesa Station near Flagstaff, Arizona.[1]
Earth flybys 2015–2027
It passed about 28 lunar distances (LD) from the Earth on 25 December 2015. It came within about 7 LD (0.0189 AU) on 22 December 2018. Its peak brightness was about 13.13 magnitude on 16 December 2018.
Observations are planned for favorable flybys in 2021, 2024, and 2027. It passed with 14 LD (0.0363 AU) on 17 December 2021, and 34 LD (0.0884 AU) on 2 December 2024, and 54 LD (0.1382 AU) on 12 November 2027.[2]
Patrick Taylor of Arecibo Observatory suggested it could be a target for a future robotic mission.[3]
| Date | JPL SBDB nominal geocentric distance |
uncertainty region (3-sigma) |
|---|---|---|
| 2021-12-17 | Шаблон:Val | ± 22 km |
2015
It was observed in December 2015 at a distance of 28.3 lunar distances (0.07296 AU) on December 24, and its brightest was 15.22 magnitude on December 16. It showed an elongated shape, up to 2 km wide, described as being shaped like a sweet potato.
| GDSCC | Arecibo Observatory | |
|---|---|---|
| Файл:PIA20279.jpg 17 December 2015 |
Файл:PIA20280.jpg 22 December 2015 |
Файл:2003SD220.Arecibo.2015Dec03-16.75m.png 3–16 December 2015 |
| Файл:2003 SD220 skypath 2015.png |
Closest flyby 2018
Шаблон:Mp passed its closest distance of 7.34 LD (0.01899 AU) on 22 December 2018. It was on the list of Goldstone targets for December 2018 [4] to gain more information for the Near-Earth Object Human Space Flight Accessible Targets Study (NHATS).[5]
| Файл:PIA22970-1041-Asteroid2003SD220-20181221.jpg Asteroid Шаблон:Mp radar images (15–17 December 2018)[6] |
Its peak brightness was about 13.1 magnitude on 16 December 2018, moving south from Ursa major and Boötes into Ophiuchus at closest approach and into Sagittarius.
| Файл:2003 SD220 skypath 2018.png |
2021
Шаблон:Mp passed at a distance of 14.1 lunar distances (0.03628 AU) on December 17, 2021. It was observed by the Goldstone Solar System Radar from November to December 2021.
| Файл:2003SD220 Goldstone radar Nov22.jpg 22 November 2021 |
Файл:2003 SD220 skypath 2021.png
Notes
References
External links
- Radar Images of a Christmas-Eve Asteroid: An Early Gift for Astronomers Goldstone, JPL, December 23, 2015
- No, a "Massive" Asteroid Passing Earth on Thursday Will Not Cause Earthquakes By Phil Plait, December 21, 2015
- Mission Opportunities for Human Exploration of Nearby Planetary Bodies Cyrus Foster, Matthew Daniels (2016)
- Шаблон:NeoDys
- Шаблон:ESA-SSA
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:2018 in space Шаблон:2021 in space Шаблон:Authority control
- ↑ Ошибка цитирования Неверный тег
<ref>; для сносокMPC-objectне указан текст - ↑ 2,0 2,1 Ошибка цитирования Неверный тег
<ref>; для сносокjpldataне указан текст - ↑ Silent Night: Asteroid 2003 SD220 Sleighs by Earth on Christmas Eve Шаблон:Webarchive Arecibo Observatory
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite news
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