20898 Fountainhills information

20898 Fountainhills
Discovery
Discovered by	C. W. Juels
Discovery site	Fountain Hills Obs.
Discovery date	30 November 2000
Designations
MPC designation	(20898) Fountainhills
Named after	Fountain Hills ; (U.S. city in Arizona)
Alternative designations	2000 WE147 · 1975 BE; 1994 NA1
Minor planet category	main-belt · (outer) ; background · ACO
Orbital characteristics
	Epoch 23 March 2018 (JD 2458200.5)
	Uncertainty parameter 0
Observation arc	66.49 yr (24,285 d)
Aphelion	6.1881 AU
Perihelion	2.2572 AU
Semi-major axis	4.2226 AU
Eccentricity	0.4654
Orbital period (sidereal)	8.68 yr (3,169 d)
Mean anomaly	328.44°
Mean motion	0° 6m 48.96s / day
Inclination	45.523°
Longitude of ascending node	293.19°
Argument of perihelion	234.78°
Jupiter MOID	0.5295 AU
TJupiter	2.3490
Physical characteristics
Mean diameter	37.08 km (derived); 37.31±1.1 km; 41.53±0.85 km
Synodic rotation period	12.84±0.03 h
Geometric albedo	0.0200 (derived); 0.037±0.007; 0.0505±0.003
Spectral type	D ; B–V = 0.767±0.008; V–R = 0.428±0.010; V–I = 0.826±0.008
Absolute magnitude (H)	11.0 · 11.10; 12.02

20898 Fountainhills (provisional designation 2000 WE₁₄₇) is a dark asteroid in a cometary orbit (ACO) from the outermost regions of the asteroid belt, approximately 37 kilometers (23 miles) in diameter. It was discovered on 30 November 2000, by American amateur astronomer Charles W. Juels at the Fountain Hills Observatory in Arizona, United States.^[1] The D-type asteroid has a rotation period of 12.84 hours.^[3] It was named for the city of Fountain Hills, Arizona, in the United States.^[1]

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