9844 Otani

9844 Otani
Discovery
Discovered by	Y. Kushida; O. Muramatsu
Discovery site	Yatsugatake South Base Obs.
Discovery date	23 November 1989
Designations
MPC designation	(9844) Otani
Named after	Toyokazu Otani; (astronomy lecturer)
Alternative designations	1989 WF1 · 1980 VF1; 1996 HA26
Minor planet category	main-belt · Eunomia
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	67.44 yr (24,634 days)
Aphelion	3.2894 AU
Perihelion	2.1105 AU
Semi-major axis	2.7000 AU
Eccentricity	0.2183
Orbital period (sidereal)	4.44 yr (1,620 days)
Mean anomaly	102.78°
Mean motion	0° 13m 19.92s / day
Inclination	12.932°
Longitude of ascending node	60.733°
Argument of perihelion	353.14°
Physical characteristics
Dimensions	3.84 km (calculated)
Synodic rotation period	10.0730±0.0053 h
Geometric albedo	0.21 (assumed)
Spectral type	S
Absolute magnitude (H)	13.87±0.47 · 13.9 · 13.939±0.004 (R) · 14.39

9844 Otani, provisional designation 1989 WF₁, is a stony Eunomian asteroid from the middle region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 23 November 1989, by Japanese astronomers Yoshio Kushida and Osamu Muramatsu at the Yatsugatake South Base Observatory, Hokuto, near the Greater Tokyo Area, Japan.^[6] It was named for Japanese astronomer Toyokazu Otani.^[2]

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Discovery ^[1]
Discovered by	Y. Kushida O. Muramatsu
Discovery site	Yatsugatake South Base Obs.
Discovery date	23 November 1989
Designations
MPC designation	(9844) Otani
Named after	Toyokazu Otani (astronomy lecturer)^[2]
Alternative designations	1989 WF₁ · 1980 VF₁ 1996 HA₂₆
Minor planet category	main-belt · Eunomia ^[3]
Orbital characteristics ^[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	67.44 yr (24,634 days)
Aphelion	3.2894 AU
Perihelion	2.1105 AU
Semi-major axis	2.7000 AU
Eccentricity	0.2183
Orbital period (sidereal)	4.44 yr (1,620 days)
Mean anomaly	102.78°
Mean motion	0° 13^m 19.92^s / day
Inclination	12.932°
Longitude of ascending node	60.733°
Argument of perihelion	353.14°
Physical characteristics
Dimensions	3.84 km (calculated)^[3]
Synodic rotation period	10.0730±0.0053 h^[4]
Geometric albedo	0.21 (assumed)^[3]
Spectral type	S ^[3]
Absolute magnitude (H)	13.87±0.47^[5] · 13.9^[1] · 13.939±0.004 (R)^[4] · 14.39^[3]

9844 Otani

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