astro.wikisort.org - Asteroid

2010 AL₃₀ is a near-Earth asteroid that was discovered on 10 January 2010 at Grove Creek Observatory, Australia.[1][3]

2010 AL₃₀

Goldstone radar collage of asteroid 2010 AL30
Discovery
Discovery date	January 10, 2010
Designations
Alternative designations	none
Minor planet category	Apollo NEO[1]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 2
Aphelion	1.3688 AU (204.77 Gm)
Perihelion	0.72437 AU (108.364 Gm)
Semi-major axis	1.0466 AU (156.57 Gm)
Eccentricity	0.30787
Orbital period (sidereal)	1.07 yr (391.07 d)
Average orbital speed	28.5
Mean anomaly	156.409°
Mean motion	0° 55m 13.944s /day
Inclination	3.8300°
Longitude of ascending node	112.376°
Argument of perihelion	97.711°
Earth MOID	0.000981553 AU (146,838.2 km)
Jupiter MOID	3.59473 AU (537.764 Gm)
Physical characteristics
Dimensions	~30 meters (elongated)[2]
Synodic rotation period	0.14660 h (0.006108 d)
Spectral type	?
Absolute magnitude (H)	27.2

Italian scientists Ernesto Guido and Giovanni Sostero told RIA Novosti that it had an orbital period of almost exactly one year and might be a spent rocket booster.[4] However, it was determined that it is a near-Earth asteroid.[5]

On January 13, 2010 at 1246 UT it passed Earth at 0.0008624 AU (129,010 km; 80,170 mi),[1] about 1/3 of the distance from the Earth to the Moon (or 0.33 LD).

Based an estimated diameter of 10–15 m (33–49 ft), if 2010 AL30 had entered the Earth's atmosphere, it would have created a meteor air burst equivalent to between 50 kT and 100 kT (kilotons of TNT). The Nagasaki "Fat Man" atom bomb had a yield between 13–18 kT.[6]

It has an uncertainty parameter of 2 and has been observed by radar.[1] Radar observations show the asteroid is elongated and is about 30 meters in diameter.[2] It may be a contact binary.

See also

• 2010 GA6
• List of asteroid close approaches to Earth

References

External links

• MPEC 2010-A59 : 2010 AL30 – (Minor Planet Center / 2010 Jan. 11)
• MPEC 2010-A64 : 2010 AL30 – (Minor Planet Center / 2010 Jan. 12)
• Mystery object 2010 AL30 to pass within 130,000 km of Earth (heraldsun.com)
• NEO 2010 AL30 Close Approach – (Remanzacco Observatory / January 11, 2010)
• Goldstone detects "STRONG" radar echoes from 2010 AL30 Archived 18 November 2010 at the Wayback Machine – (Emily Lakdawalla / Jan. 12, 2010)
• First Results of the Goldstone High-Resolution Chirp Radar Imaging System: Application to Near-Earth Asteroid 2010 AL30 – (2011 October 4)
• Weird Object Zooming by Earth Wednesday is Likely an Asteroid, www.space.com, January 2010
• 2010 AL30 at NeoDyS-2, Near Earth Objects—Dynamic Site
  • Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
• 2010 AL30 at ESA–space situational awareness
  • Ephemerides · Observations · Orbit · Physical Properties · Summary
• 2010 AL30 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

---

[de] 2010 AL30

2010 AL30 ist ein etwa 10–15 Meter großer Asteroid, der die Erde am 13. Januar 2010 um etwa 13:46 MEZ in ca. 130.000 km Entfernung passierte. Der Asteroid bewegt sich mit ungefähr 36.000 km/h und gehört zur Klasse der Apollo-Asteroiden, welche die Erdbahn kreuzen.

---

- [en] 2010 AL30

---

[es] 2010 AL30

2010 AL30 es un asteroide de un tamaño aproximado de 15 metros. El 13 de enero de 2010 a las 12:46 p. m., hora del meridiano de Greenwich, se aproximó a la Tierra hasta una distancia de 130.000 km (casi una tercera parte de la distancia Tierra-Luna). Fue descubierto por el Linear Survey del Lincoln Laboratories del Massachusetts Institute of Technology (MIT) el 10 de enero de 2010. En la eventualidad de que hubiese caído en la atmósfera, no habría provocado daños, puesto que por su tamaño se habría desintegrado. El tiempo de circulación alrededor del Sol es de aproximadamente un año.

---

[ru] 2010 AL30

2010 AL30 — небольшой астероид, относящийся к сближающимся с Землёй (околоземным) из группы Аполлонов и классифицированный как потенциально опасный объект (англ. PHO)[1]. Обнаружен 10 января 2010 года итальянскими астрономами Эрнесто Гуидо и Джованни Состеро в обсерватории имени Линкольна по программе поиска таких астероидов LINEAR[2].

---

---