(15789) 1993 SC
(15789) 1993 SC is a trans-Neptunian object of the plutino class. The discovery was made in 1993 at the La Palma Observatory with the Isaac Newton Telescope. It was the second plutino to receive an MPC number.
| Discovery | |
|---|---|
| Discovered by | Iwan P. Williams, Alan Fitzsimmons, and Donal O'Ceallaigh |
| Discovery date | 17 September 1993 |
| Designations | |
MPC designation | (15789) 1993 SC |
Alternative designations | none |
Minor planet category | Plutino |
| Orbital characteristics | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 5839 days (15.99 yr) |
| Aphelion | 46.639 AU (6.9771 Tm) |
| Perihelion | 32.162 AU (4.8114 Tm) |
Semi-major axis | 39.400 AU (5.8942 Tm) |
| Eccentricity | 0.18372 |
Orbital period (sidereal) | 247.32 yr (90333.4 d) |
Mean anomaly | 66.186° |
Mean motion | 0° 0m 14.347s / day |
| Inclination | 5.1667° |
Longitude of ascending node | 354.75° |
| 316.20° | |
| Earth MOID | 31.1475 AU (4.65960 Tm) |
| Jupiter MOID | 27.0752 AU (4.05039 Tm) |
| TJupiter | 5.520 |
| Physical characteristics | |
| Dimensions | 328 km 363 km |
Mean radius | 164 ± 30 km |
| 0.022 ± 0.010 | |
| 7.0 | |
KBO's found in 1993 include: (15788) 1993 SB, (15789) 1993 SC, (181708) 1993 FW, and (385185) 1993 RO.
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