2012 DR₃₀

2012 DR₃₀
	2012 DR30 in a precovery image taken by the Sloan Digital Sky Survey in 2000
Discovery
Discovered by	Spacewatch
Discovery site	Kitt Peak Obs.
Discovery date	31 March 2009; (first observed only)
Designations
MPC designation	2012 DR30
Alternative designations	2012 DR30; 2009 FW54;
Minor planet category	TNO; centaur; damocloid; distant;
Orbital characteristics
	Epoch 27 April 2019 (JD 2458600.5)
	Uncertainty parameter 1
Observation arc	14.72 yr (5,375 d)
Aphelion	3192 AU; 2049 AU (barycentric)
Perihelion	14.5 AU
Semi-major axis	1603.44 AU; 1032 AU (barycentric)
Eccentricity	0.9909
Orbital period (sidereal)	64207 yr; 33100 yr (barycentric)
Mean anomaly	0.0453°
Mean motion	0° 0m 0s / day
Inclination	77.986°
Longitude of ascending node	341.48°
Time of perihelion	≈ 16 March 2011
Argument of perihelion	195.57°
Jupiter MOID	9.311 AU
Saturn MOID	5.45 AU
Uranus MOID	3.32 AU
TJupiter	0.9860
Physical characteristics
Mean diameter	185 km; 188 km;
Geometric albedo	0.076; 0.08 (approx.);
Spectral type	BR–IR; B–V = 1.21;
Apparent magnitude	19.9
Absolute magnitude (H)	7.1

2012 DR₃₀ is a trans-Neptunian object and centaur from the scattered disk and/or inner Oort cloud, located in the outermost region of the Solar System. The object with a highly eccentric orbit of 0.99 was first observed by astronomers with the Spacewatch program at Steward Observatory on 31 March 2009. It measures approximately 188 kilometers (120 miles) in diameter.

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2012 DR30