| Discovery[1] | |
|---|---|
| Discovered by | Mount Lemmon Survey (Pan-STARRS) |
| Discovery site | Mount Lemmon |
| Discovery date | 22 October 2014 |
| Designations | |
| (472271) 2014 UM33 | |
| 2014 UM33 · 2010 TQ182 | |
| TNO | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter3 | |
| Observation arc | 20.00 yr (>8,000 days) |
| Earliest precovery date | 16 October 2003 |
| Aphelion | 49.631 AU |
| Perihelion | 36.163 AU |
| 42.897 AU | |
| Eccentricity | 0.1570 |
| 280.96 yr (102,622 days) | |
| 269.23° | |
| 0° 0m 12.6s / day | |
| Inclination | 17.403° |
| 236.58° | |
| 269.24° | |
| Physical characteristics | |
| Dimensions | 320–720 km[3] 478 km[4] 607 km[5] 220–880[6] |
| 21–22 | |
| 4.9[2] 4.95[1] 5.2[4] | |
(472271) 2014 UM33 (provisional designation 2014 UM33) is a trans-Neptunian object residing in the outer Kuiper belt. It was discovered on October 22, 2014, by the Mount Lemmon Survey.
It is approximately the size of 2 Pallas in the asteroid belt. On August 18, 2015, 2014 UM33 was found to have been discovered over four years previously, with the designation 2010 TQ182. This extended its observation arc to over 4 years, and then precovery observations were found using the Sloan Digital Sky Survey from January 2009 and Palomar Observatory from October 2003.
 | This article about a centaur (minor planet)ortrans-Neptunian object is a stub. You can help Wikipedia by expanding it. |
