(78799) 2002 XW93

(78799) 2002 XW₉₃
Discovery
Discovered by	Palomar Obs.
Discovery site	Palomar Obs.
Discovery date	10 December 2002
Designations
MPC designation	(78799) 2002 XW93
Alternative designations	2002 XW93
Minor planet category	TNO · centaur; other TNO · distant
Orbital characteristics
	Epoch 27 April 2019 (JD 2458600.5)
	Uncertainty parameter 4
Observation arc	18.76 yr (6,852 d)
Earliest precovery date	17 December 1989
Aphelion	46.812 AU
Perihelion	27.909 AU
Semi-major axis	37.360 AU
Eccentricity	0.2530
Orbital period (sidereal)	228.36 yr (83,410 d)
Mean anomaly	145.37°
Mean motion	0° 0m 15.48s / day
Inclination	14.383°
Longitude of ascending node	46.928°
Argument of perihelion	247.18°
Physical characteristics
Mean diameter	565+71; −73 km; 584 km
Geometric albedo	0.038
Absolute magnitude (H)	5.5

(78799) 2002 XW₉₃, provisional designation 2002 XW₉₃, is a trans-Neptunian object and centaur from the outer Solar System, approximately 500–600 kilometers (300–400 mi) in diameter. It was discovered on 10 December 2002, by astronomers at the Palomar Observatory in California.