(126155) 2001 YJ140

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(126154) 2001 YJ140
Discovery
Discovered by M. E. Brown
C. Trujillo
Discovery site Palomar Obs.
Discovery date 20 December 2001
Designations
MPC designation (126155) 2001 YJ140
none
TNO · plutino
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc 2455 days (6.72 yr)
Aphelion 51.307 AU (7.6754 Tm)
Perihelion 27.906 AU (4.1747 Tm)
39.606 AU (5.9250 Tm)
Eccentricity 0.29542
249.26 yr (91043.2 d)
10.650°
0° 0m 14.235s / day
Inclination 5.9691°
319.51°
129.91°
Physical characteristics
Dimensions 154 km (Johnston's Archive)
7.3

(126155) 2001 YJ140, provisionally known as 2001 YJ140, is a resonant trans-Neptunian object from the outermost regions of the Solar System, approximately 154 kilometers in diameter. It discovered on 20 December 2001, by American astronomers Chad Trujillo and Michael E. Brown at the Palomar Observatory in California.[1]

Orbit and rotation[edit]

2001 YJ140 is classified as a plutino. Its orbit has a semi-major axis of 42.396 AU and an orbital period of about 249 years. Perihelion leads to 27.881 AU from the Sun and its aphelion in the distance of 51.348 AU.[2][3]

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