(65407) 2002 RP120

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The correct title of this article is (65407) 2002 RP120. It features superscript or subscript characters that are substituted or omitted because of technical limitations.
(65407) 2002 RP120
Discovery
Discovered by Brian A. Skiff/LONEOS
Discovery date September 4, 2002
Designations
Alternative names none
Minor planet
category
Damocloid asteroid,
Scattered disk object
Epoch April 10, 2007 (JD 2454200.5)
Aphelion 16366.658 Gm (106.71 AU) (Q)
Perihelion 369.948 Gm
(2.466 AU) (q)
Semi-major axis 8368.303 Gm (54.590 AU) (a)
Eccentricity 0.9548
Orbital period 147,324.96 d (403.35 a)
Average orbital speed 3.98 km/s
Mean anomaly 4.024°
Inclination 119.10°
Longitude of ascending node 39.212°
Argument of perihelion 357.86°
Physical characteristics
Dimensions 14.6 km[1]
Mass 3.1×1015 kg
Mean density 2 ? g/cm³
Equatorial surface gravity 0.0040 m/s²
Escape velocity 0.0076 km/s
Rotation period 200 h (8.33 d)[1]
Albedo 0.098[1]
Temperature ~37 K
Spectral type ?
Absolute magnitude 12.113[1]

(65407) 2002 RP120 (also written (65407) 2002 RP120) holds the dubious distinction of being the most eccentric of the numbered asteroids (as of July 2004). It is also a member of the very exclusive group of retrograde asteroids, which has only two numbered members (the other one is 20461 Dioretsa). Its classification is uncertain, as it is at once a Damocloid (a highly eccentric, highly inclined object likely to be an extinct comet) and a scattered disk object (a Trans-Neptunian object with a very eccentric orbit, likely ejected from the ecliptic by Neptune).


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