2013 LA2

2013 LA₂

Discovery
Discovered by	Pan-STARRS survey
Discovery site	Pan-STARRS 1 [F51]
Discovery date	2013-06-01
Designations
Minor planet category	Centaur
Orbital characteristics[1]
Epoch 5 June 2013 (JD 2456448.5)
Uncertainty parameter 8
Aphelion	11.974 AU (1.7913 Tm)
Perihelion	3.0485 AU (456.05 Gm)
Semi-major axis	7.5114 AU (1.12369 Tm)
Eccentricity	0.59415
Orbital period	20.59 yr (7519.40 d)
Mean anomaly	6.63776°
Mean motion	0° 2^m 52.354^s /day
Inclination	175.1887°
Longitude of ascending node	240.9895°
Argument of perihelion	326.062°
Earth MOID	2.03352 AU (304.210 Gm)
Jupiter MOID	0.224454 AU (33.5778 Gm)
Saturn MOID	0.82485 AU
Physical characteristics
Dimensions	1-2 km[2] 1.8-3.2 km
Apparent magnitude	24.95-25.05 [December 2014]
Absolute magnitude (H)	16.9

2013 LA2 is a Centaur and most likely an extinct comet with the highest orbital inclination of any known asteroid, 175.189 degrees, which gives it a retrograde orbit, inclined 4.81 degrees to the ecliptic. The asteroid's orbit takes if from the outer main asteroid belt to between the orbit of Saturn and Uranus. However the asteroid's orbit is poorly determined, and contrary to the JPL, the minor planet center's orbit puts it with an aphelion near the orbit of Saturn. The asteroid was observed 43 times over a 25-day interval between June 1, 2013 and June 26, 2013.

See also

List of notable asteroids

notes

^ calculated using the absolute magnitude calculation^[3]

^ assuming an albedo of 0.03-0.1

References

1. "JPL Small-Body Database Browser: (2013 LA2)". Jet Propulsion Laboratory. Retrieved 3 April 2016.
2. "Glossary: Absolute Magnitude (H)". JPL small-body database. NASA. Retrieved 4 December 2014.
3. Bruton, Dan. "Conversion of Absolute Magnitude to Diameter for Minor Planets". sfasu.edu. Archived from the original on 23 July 2011. Retrieved 3 January 2015.

External links

• 2013 LA2 at the JPL Small-Body Database
  
  • Discovery · Orbit diagram · Orbital elements · Physical parameters