Discovery[1] | |
---|---|
Discovered by | LONEOS |
Discovery site | Anderson Mesa Stn. |
Discovery date | 4 September 2002 |
Designations | |
(65407) 2002 RP120 | |
2002 RP120 | |
TNO[2] · damocloid[3] unusual[4] · distant[1] | |
Orbital characteristics[2] | |
Epoch 27 April 2019 (JD 2458600.5) | |
Uncertainty parameter 2 | |
Observation arc | 3.35 yr (1,225 d) |
Aphelion | 105.39 AU |
Perihelion | 2.4544 AU |
53.920 AU | |
Eccentricity | 0.9545 |
395.95 yr (144,619 d) | |
15.061° | |
0° 0m 9s / day | |
Inclination | 118.97° |
39.263° | |
357.79° | |
TJupiter | −0.8340 |
Physical characteristics | |
14.6±2.8 km[5] | |
200 h[6] | |
0.098±0.036[3][5] | |
B–R = 1.37[3] | |
12.3[1][2] | |
(65407) 2002 RP120 (provisional designation 2002 RP120) is a trans-Neptunian object and damocloid from the outer Solar System. Its orbit is retrograde and comet-like, and has a high eccentricity. It was discovered on 4 September 2002 by astronomers with the LONEOS survey at Anderson Mesa Station, Arizona, in the United States. The unusual object measures approximately 14.6 kilometers (9.1 miles) in diameter and is likely elongated in shape. It is a slow rotator and potentially a tumbler as well.[7] The object was probably ejected from the ecliptic by Neptune.[citation needed]
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