Английская Википедия:2023 AV
Шаблон:Short description Шаблон:Use dmy dates Шаблон:Infobox planet
2023 AV is a near-Earth object that passed Шаблон:Cvt from the centerpoint of Earth around 12 January 2023 20:09 ± 00:05 UT.[1] Since Earth has a radius of about Шаблон:Cvt, it passed about Шаблон:Cvt from the surface of Earth. The asteroid is about 2–5 meters in diameter. The asteroid came to perihelion (closest approach to the Sun) on 3 November 2022[2] and approached Earth from the direction of the Sun. It was first imaged by the Catalina Sky Survey on 13 January 2023 04:56,[3] nine hours after closest approach. It was confirmed via the Near-Earth Object Confirmation Page and publicly announced by the Minor Planet Center 42.5 hours after closest approach or about 34 hours after the first image. An impact by this object would have been similar to Шаблон:Mpl.
| Date & time of closest approach |
Earth distance (AU) |
Sun distance (AU) |
Velocity wrt Earth (km/s) |
Velocity wrt Sun (km/s) |
Uncertainty region (3-sigma) |
Reference |
|---|---|---|---|---|---|---|
| 2023-01-12 20:09 ± 00:05 | Шаблон:Convert | Шаблон:Convert | 15.0 | 30.9 | ± 400 km | Horizons |
The 2023 Earth approach lifted the orbit and increased the orbital period from 314 days to 440 days.[4] This changed it from an Aten asteroid to an Apollo asteroid.
| Parameter | Epoch | Period (p) |
Aphelion (Q) |
Perihelion (q) |
Semi-major axis (a) |
Eccentricity (e) |
Inclination (i) |
|---|---|---|---|---|---|---|---|
| Units | (days) | AU | (°) | ||||
| Pre-flyby | 2022-Oct-25[4] | 314.2 | 1.265 | 0.544 | 0.904 | 0.3983 | 12.34° |
| Post-flyby | 2023-Feb-25[1] | 440.5 | 1.583 | 0.683 | 1.133 | 0.3972 | 10.65° |
References
External links
Шаблон:2023 in space Шаблон:Small Solar System bodies Шаблон:Portal bar Шаблон:Authority control
- ↑ 1,0 1,1 1,2 Ошибка цитирования Неверный тег
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<ref>; для сносокHorizons-epochне указан текст
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