2939 Coconino information

2939 Coconino
Discovery
Discovered by	E. Bowell
Discovery site	Anderson Mesa Stn.
Discovery date	21 February 1982
Designations
MPC designation	(2939) Coconino
Named after	Coconino County; (U.S. county in Arizona)
Alternative designations	1982 DP · 1952 HU3; 1976 ST4
Minor planet category	main-belt · Nysa
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	40.69 yr (14,861 days)
Aphelion	2.8399 AU
Perihelion	2.0394 AU
Semi-major axis	2.4396 AU
Eccentricity	0.1641
Orbital period (sidereal)	3.81 yr (1,392 days)
Mean anomaly	47.539°
Inclination	3.9489°
Longitude of ascending node	349.97°
Argument of perihelion	237.31°
Physical characteristics
Dimensions	5.607±0.177 km; 9.40 km (calculated)
Synodic rotation period	4.68138±0.00004 h
Geometric albedo	0.20 (assumed); 0.512±0.043
Spectral type	S
Absolute magnitude (H)	12.5 · 12.6 · 12.92±0.10

2939 Coconino, provisional designation 1982 DP, is a stony Nysian asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 21 February 1982, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station in Flagstaff, United States.^[8] It is named after the Coconino County in Arizona.^[2]

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