(385185) 1993 RO
| Discovery | |
|---|---|
| Discovered by |
David C. Jewitt Jane Luu |
| Discovery date | 14 September 1993 |
| Designations | |
| 1993 RO | |
| Plutino (TNO) | |
| Orbital characteristics | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 6997 days (19.16 yr) |
| Aphelion | 46.776 AU (6.9976 Tm) |
| Perihelion | 31.492 AU (4.7111 Tm) |
| 39.134 AU (5.8544 Tm) | |
| Eccentricity | 0.19528 |
| 244.81 yr (89418.1 d) | |
| 26.984° | |
| 0.0040260°/day | |
| Inclination | 3.7196° |
| 170.4038° | |
| 188.41° | |
| Earth MOID | 30.4867 AU (4.56075 Tm) |
| Jupiter MOID | 26.5264 AU (3.96829 Tm) |
| Physical characteristics | |
| Dimensions | ~92 km |
| 0.09 (assumed) | |
| 8.4 | |
(385185) 1993 RO is a plutino. It was the first plutino discovered after Pluto itself, with 1993 RP and (15788) 1993 SB a day and two days later, respectively. The discovery was made in 1993 at the Mauna Kea Observatory with a 2.2-meter telescope. Very little is known about (385185) 1993 RO. Even the diameter estimate of ~90 km is based on the assumed albedo of 0.09.
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