(69990) 1998 WU31

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(69990) 1998 WU31
Discovery
Discovered by Marc W. Buie
Discovery date 18 November 1998
Designations
MPC designation (69990) 1998 WU31
none
TNO (plutino)
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc 2479 days (6.79 yr)
Aphelion 46.521 AU (6.9594 Tm)
Perihelion 31.992 AU (4.7859 Tm)
39.256 AU (5.8726 Tm)
Eccentricity 0.18505
245.96 yr (89838.0 d)
45.835°
0° 0m 14.426s / day
Inclination 6.5838°
237.19°
142.25°
Earth MOID 30.9954 AU (4.63685 Tm)
Jupiter MOID 27.0593 AU (4.04801 Tm)
Physical characteristics
Dimensions 111 km
0.09 (assumed)
8.3

(69990) 1998 WU31, also written as (69990) 1998 WU31 is a TNO that resides in the Kuiper belt. It was discovered on November 18, 1998, by Marc W. Buie at Kitt Peak National Observatory

Since it is in a 2:3 orbital resonance with the planet Neptune, it has been classified as a plutino.

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