(78799) 2002 XW93
| Discovery [1][2] | |
|---|---|
| Discovered by | Palomar team |
| Discovery site | Palomar Obs. |
| Discovery date | 10 December 2002 |
| Designations | |
| MPC designation | (78799) 2002 XW93 |
| 2002 XW93 | |
| TNO | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 18.76 yr (6,852 days) |
| Aphelion | 46.780 AU |
| Perihelion | 28.193 AU |
| 37.487 AU | |
| Eccentricity | 0.2479 |
| 229.52 yr (83,833 days) | |
| 141.33° | |
| Inclination | 14.382° |
| 46.926° | |
| 247.23° | |
| Physical characteristics | |
| Dimensions | 584 km[3] 565 km[4] |
| 5.5[1] | |
(78799) 2002 XW93 is an unnamed minor planet in the outer Solar System, classified as a trans-Neptunian object, approximately 550–600 kilometers in diameter. It was discovered by and at the U.S Palomar Observatory, California, on 10 December 2002. According to American astronomer Michael Brown, the minor planet is a likely dwarf planet.[3]
The minor planet orbits the Sun at a distance of 28.3–46.8 AU once every 229 years and 6 months (83,833 days). Its orbit has an eccentricity of 0.25 and an inclination of 14° with respect to the ecliptic.[1] The first precovery was taken at Palomar's Digitized Sky Survey in 1989, extending the asteroid's observation arc by 13 years prior to its discovery.[5]
As of 2016, after a total of 29 observations, its orbital uncertainty parameter is at 3. Its last observation was made by the Hubble Space Telescope in September 2008.[5] On 10 August 1926, it most recently reached perihelion, when it was nearest to the Sun.[2][5] It is a near 5:7 resonant trans-Neptunian object.[citation needed]
References
- ↑ 1.0 1.1 1.2 1.3 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 5.2 Lua error in package.lua at line 80: module 'strict' not found.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Discovery Circumstances: Numbered Minor Planets (75001)-(80000) – Minor Planet Center
- (78799) 2002 XW93 at the JPL Small-Body Database
