(636872) 2014 YX49

(636872) 2014 YX49 (provisional designation 2014 YX49) is a centaur and Uranus co-orbital, approximately 77 kilometers (48 miles) in diameter, first observed on December 26, 2014, by the Pan-STARRS survey. It is the second known centaur on a tadpole orbit with Uranus, and the fourth Uranus co-orbital discovered after 83982 Crantor, 2011 QF99 and (472651) 2015 DB216.

(636872) 2014 YX49
Discovery
Discovered byPan-STARRS
Discovery siteHaleakala Obs.
Discovery dateDecember 26, 2014
Designations
2014 YX49
Uranus trojan centaur · distant
Orbital characteristics
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 1
Observation arc4876 days (13.35 yr)
Aphelion24.4207 AU (3.65328 Tm)
Perihelion13.8401 AU (2.07045 Tm)
19.1304 AU (2.86187 Tm)
Eccentricity0.276539
83.67 yr (30562 d)
75.587°
Inclination25.55097°
91.44425°
280.584°
Earth MOID12.9424 AU (1.93616 Tm)
Jupiter MOID9.47006 AU (1.416701 Tm)
Physical characteristics
Mean diameter
77 km (est. at 0.09)
21.6
8.8
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