(69988) 1998 WA31

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(69988) 1998 WA31
Discovery
Discovered by Marc W. Buie
Discovery date November 18, 1998
Designations
MPC designation (69988) 1998 WA31
TNO
2:5 resonance[1]
Orbital characteristics
Aphelion 78.179 AU
Perihelion 31.473 AU
54.826 AU
Eccentricity 0.426
35.9°
Inclination 9.5°
20.8°
309.2°
Physical characteristics
Dimensions 139 km[2]
Albedo 0.09 (assumed)
7.5

(69988) 1998 WA31, also written as (69988) 1998 WA31, is a trans-Neptunian object that resides in the Kuiper belt.[3] It was discovered on 18 November 1998 by Marc W. Buie at the Kitt Peak National Observatory.

It is in a 2:5 orbital resonance with the planet Neptune.[1]

References[edit]

  1. ^ a b Marc W. Buie. "Orbit Fit and Astrometric record for 69988" (2000-12-28 using 22 of 24 observations). SwRI (Space Science Department). Retrieved 2009-01-29. 
  2. ^ Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 2009-01-29. 
  3. ^ "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 2009-01-29.