(24835) 1995 SM55
| Discovery | |
|---|---|
| Discovered by | Nichole Danzl |
| Discovery date | 19 September 1995 |
| Designations | |
| MPC designation | (24835) 1995 SM55 |
|
Cubewano (MPC) Extended (DES) |
|
| Orbital characteristics | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 11751 days (32.17 yr) |
| Aphelion | 46.152 AU (6.9042 Tm) |
| Perihelion | 37.372 AU (5.5908 Tm) |
| 41.762 AU (6.2475 Tm) | |
| Eccentricity | 0.10512 |
| 269.88 yr (98574.7 d) | |
|
Average orbital speed
|
4.60 km/s |
| 327.655° | |
| 0° 0m 13.148s / day | |
| Inclination | 27.092° |
| 21.103° | |
| 72.369° | |
| Earth MOID | 36.4871 AU (5.45839 Tm) |
| Jupiter MOID | 32.8196 AU (4.90974 Tm) |
| Jupiter Tisserand parameter | 5.141 |
| Physical characteristics | |
| Dimensions |
174 km <704km |
| 8.08 h (0.337 d) | |
|
Sidereal rotation period
|
8.08 h |
| 0.7 (assumed) | |
| Temperature | ~43 K |
| (Neutral) B−V=0.65, V−R=0.39 B0−V0=0.628 |
|
| 4.8 | |
(24835) 1995 SM55, also written (24835) 1995 SM55, is a trans-Neptunian object (TNO) that resides in the Kuiper belt that was discovered on September 19, 1995, by Nichole M. Danzl. Until (19308) 1996 TO66 was discovered, it was the second-largest known object in the Kuiper belt, after Pluto.
Based on their common pattern of IR water-ice absorptions, neutral visible spectrum and the clustering of their orbital elements, the other KBOs (19308) 1996 TO66, (55636) 2002 TX300, (120178) 2003 OP32 and (145453) 2005 RR43 all appear to be collisional fragments broken off of the dwarf planet Haumea.
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