(84522) 2002 TC302
Hubble Space Telescope image of 2002 TC302 taken in 2005 | |
| Discovery | |
|---|---|
| Discovered by | M. E. Brown C. A. Trujillo D. L. Rabinowitz |
| Discovery site | Palomar Obs. |
| Discovery date | 9 October 2002 |
| Designations | |
| (84522) 2002 TC302 | |
| TNO · 2:5 resonant distant | |
| Orbital characteristics | |
| Epoch 1 July 2021 (JD 2459396.5) | |
| Uncertainty parameter 2 · 3 | |
| Observation arc | 20.49 yr (7,484 d) |
| Earliest precovery date | 5 August 2000 |
| Aphelion | 71.382 AU |
| Perihelion | 39.169 AU |
| 55.275 AU | |
| Eccentricity | 0.2914 |
| 410.97 yr (150,105 d) | |
| 327.19° | |
| 0° 0m 8.64s / day | |
| Inclination | 34.993° |
| 23.801° | |
| 14 December 2058 | |
| 86.312° | |
| Physical characteristics | |
| Dimensions | 543±18 × 460±11 km (projected area) |
| 500±14 km (area equiv.) 584.1+105.6 −88.0 km (thermal) | |
| 56.1 h | |
| 0.147 0.115+0.047 −0.033 | |
| IR (moderately red) B–V=1.03 V–R=0.67 | |
| 20.5 | |
| 3.94 4.23 4.17±0.10 | |
(84522) 2002 TC302 (provisional designation 2002 TC302) is a mid-sized trans-Neptunian object located in the outermost region of the Solar System. It was discovered on 9 October 2002, by American astronomers Mike Brown, Chad Trujillo and David Rabinowitz at the Palomar Observatory in California. The resonant trans-Neptunian object stays in a 2:5 resonance with Neptune. It has a reddish color, a rotation period of 56.1 hours and measures at least 500 kilometers (310 miles) in diameter.