Minorplanet: | yes |
Background: |
|
(385185) 1993 RO | |
Discovered: | 14 September 1993 |
Alt Names: | 1993 RO |
Mp Category: | Plutino (TNO) |
Orbit Ref: | [1] |
Epoch: | 13 January 2016 (JD 2457400.5) |
Semimajor: | 39.134AU |
Perihelion: | 31.492AU |
Aphelion: | 46.776abbr=onNaNabbr=on |
Eccentricity: | 0.19528 |
Period: | 244.81 yr (89418.1 d) |
Inclination: | 3.7196° |
Asc Node: | 170.4038° |
Arg Peri: | 188.41° |
Dimensions: | ~92 km |
Abs Magnitude: | 8.4 |
Albedo: | 0.09 (assumed) |
Mean Motion: | 0.0040260°/day |
Observation Arc: | 6997 days (19.16 yr) |
Earliest Precovery Date: | 10 August 1994 |
Uncertainty: | 4 |
Moid: | 30.4867AU |
Jupiter Moid: | 26.5264AU |
(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.[2]
KBO's found in 1993 include: (15788) 1993 SB, (15789) 1993 SC, (181708) 1993 FW, and (385185) 1993 RO.