(9928) 1981 WE9

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(9928) 1981 WE9
AnimatedOrbitOf99281981WE9.gif
Orbit of (9928) 1981 WE9 (blue), planets (red) and the Sun (black). The outermost planet visible is Jupiter.
Discovery and designation
Discovered by Perth Observatory
Discovery date November 16, 1981
Designations
MPC designation (9928) 1981 WE9
1971 TJ1, 1993 FC43
Minor planet category Main Belt asteroid
Orbital characteristics
Epoch October 27, 2007
Aphelion 2.6091584 AU
Perihelion 1.8256226 AU
2.2173905 AU
Eccentricity 0.1766797
1206.0400092 d
346.22065°
Inclination 2.84296°
179.49922°
175.65482°
Physical characteristics
Dimensions ~12.9 km[1]
5.547 h[2]
~0.01
Surface temp. min mean max
Kelvin
Celsius
14.4


(9928) 1981 WE9 is a main belt asteroid. It orbits the Sun once every 3.30 years.[3] It is associated with the Flora family of asteroids.[4]

Discovered on November 16, 1981 by the Perth Observatory in Bickley, it was given the provisional designation "1981 WE9".[5]

References[edit]

  1. ^ Tedesco E.F., Noah P.V., Noah M., Price S.D. "The supplemental IRAS minor planet survey (SIMPS)". 
  2. ^ Maurice Clark. "Asteroid 9928 1981 WE9". Montgomery College. 
  3. ^ "9928 (1981 WE9)". JPL Small-Body Database Browser. NASA/JPL. Retrieved 2008-02-18. 
  4. ^ Zappala, V., Ph. Bendjoya, A. Cellino, P. Farinella, and C. Froeschle (1997). "Asteroid Dynamical Families.". EAR-A-5-DDR-FAMILY-V4.1. NASA Planetary Data System. 
  5. ^ MPO 65995 Minor Planet Center