(65407) 2002 RP120
(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. The object was probably ejected from the ecliptic by Neptune.
| Discovery | |
|---|---|
| Discovered by | LONEOS |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 4 September 2002 |
| Designations | |
MPC designation | (65407) 2002 RP120 |
Alternative designations | 2002 RP120 |
Minor planet category | TNO · damocloid unusual · distant |
| Orbital characteristics | |
| 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 |
Semi-major axis | 53.920 AU |
| Eccentricity | 0.9545 |
Orbital period (sidereal) | 395.95 yr (144,619 d) |
Mean anomaly | 15.061° |
Mean motion | 0° 0m 9s / day |
| Inclination | 118.97° |
Longitude of ascending node | 39.263° |
| 357.79° | |
| TJupiter | −0.8340 |
| Physical characteristics | |
Mean diameter | 14.6±2.8 km |
Synodic rotation period | 200 h |
| 0.098±0.036 | |
| B–R = 1.37 | |
| 12.3 | |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.