|Discovered by||E. J. Christensen (Catalina Sky Survey)|
|Discovery date||May 6, 2006|
|MPC designation||2006 JY26|
|Minor planet category||Apollo NEO, PHA
|Epoch April 18, 2013 (JD 2456400.5)|
|Semi-major axis||1.009863 AU|
|Orbital period||1.0 y (370.674 d)|
|Longitude of ascending node||43.487°|
|Argument of perihelion||273.571°|
|Absolute magnitude (H)||28.4|
Discovery, orbit and physical properties
2006 JY26 was discovered by E. J. Christensen on May 6, 2006 observing for the Catalina Sky Survey. Its orbit is characterized by low eccentricity (0.083), low inclination (1.44º) and a semi-major axis of 1.01 AU. Upon discovery, it was classified as an Apollo asteroid but also an Earth crosser by the Minor Planet Center. As of May 11, 2013 its orbit is based on 71 observations spanning a data-arc of 4 days. 2006 JY26 has an absolute magnitude of 28.3 which gives a characteristic diameter of 9 m.
Horseshoe companion to the Earth and orbital evolution
Recent calculations indicate that it follows a horseshoe orbit with respect to the Earth. It had a close encounter with the Earth on May 10, 2006 at 0.003 AU. Its orbital evolution is very chaotic and its orbit is difficult to predict beyond a few hundred years. Its orbit matches the expected properties of that of an object in the Arjuna-class.
It may have been originated within the Venus-Earth-Mars region or in the main asteroid belt like other Near-Earth Objects, then transition to Amor-class asteroid before entering Earth's co-orbital region.
- ^ This is assuming an albedo of 0.20–0.04.
- List Of Aten Minor Planets
- 2006 JY26 at the JPL Small-Body Database
- AstDys-2 on 2006 JY26 Retrieved 2013-05-11
- NEODyS-2 on 2006 JY26 Retrieved 2013-05-11
- Absolute-magnitude conversion table (H)
- de la Fuente Marcos, C.; de la Fuente Marcos, R. (July 2013). "A resonant family of dynamically cold small bodies in the near-Earth asteroid belt". Monthly Notices of the Royal Astronomical Society: Letters 434 (1): L1–L5. arXiv:1305.2825. Bibcode:2013MNRAS.434L...1D. doi:10.1093/mnrasl/slt062.
- Discovery MPEC
- MPC data on 2006 JY26
- JPL's Solar System Dynamics data on 2006 JY26
- Further reading
- A resonant family of dynamically cold small bodies in the near-Earth asteroid belt de la Fuente Marcos, C., de la Fuente Marcos, R. 2013, Monthly Notices of the Royal Astronomical Society: Letters, Vol. 434, Issue 1, pp. L1-L5.
- 2006 JY26 data at MPC
- 2006 JY26 Earth Impact Risk Summary
- MPEC 2006-J38 : 2006 JY26 (Discovery MPEC)