(131696) 2001 XT254
From Infogalactic: the planetary knowledge core
| Discovery[1] | |
|---|---|
| Discovered by | Sheppard, S. S., Kleyna, J., Jewitt, D. C. |
| Discovery date | 9 December 2001 |
| Designations | |
| MPC designation | (131696) 2001 XT254 |
| SDO[2] 3:7 resonance[3][4] |
|
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 4113 days (11.26 yr) |
| Aphelion | 70.889 AU (10.6048 Tm) (Q) |
| Perihelion | 35.892 AU (5.3694 Tm) (q) |
| 53.391 AU (7.9872 Tm) (a) | |
| Eccentricity | 0.32774 (e) |
| 390.13 yr (142494 d) | |
| 359.98° (M) | |
| Inclination | 0.51687° (i) |
| 359.55° (Ω) | |
| 133.36° (ω) | |
| Earth MOID | 34.907 AU (5.2220 Tm) |
| Jupiter MOID | 30.5705 AU (4.57328 Tm) |
| Physical characteristics | |
| Dimensions | 146 km (assumed)[5] |
| 0.09 (assumed) | |
| 7.4[1] | |
(131696) 2001 XT254, provisionally known as 2001 XT254, is a Kuiper belt object (KBO)[2] that has a 3:7 resonance with Neptune.[3]
It will come to perihelion in January 2016.[1]
Assuming a generic TNO albedo of 0.09, it is about 146 km in diameter.[5]
Resonance
Simulations by Emel’yanenko and Kiseleva in 2007 show that (131696) 2001 XT254 is librating in a 3:7 resonance with Neptune.[6] This libration can be stable for less than 100 million to billions of years.[6]
It has been observed 22 times over 4 oppositions.[1]
The trefoil libration of 2001 XT254. Jupiter in red, Saturn in yellow, and Uranus in blue. Neptune is the white dot at 5 o'clock.
See also
(95625) 2002 GX32 has a similar resonant behavior.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- (131696) 2001 XT254 at the JPL Small-Body Database
