(87269) 2000 OO67

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(87269) 2000 OO67
Discovery A
Discoverer Cerro Tololo telescope
Discovery date July 29, 2000
Alternate
designations
B
none
Category TNO
Centaur[1]
Orbital elements C
Epoch December 31, 2006 (JD 2454100.5)
Eccentricity (e) 0.962
Semi-major axis (a) 81,453.391 Gm (544.482 AU)
Perihelion (q) 3,106.523 Gm (20.766 AU)
Aphelion (Q) 159,800.258 Gm (1068.199 AU)
Orbital period (P) 4,640,599.188 d (12,705.27 a)
Mean orbital speed 0.88 km/s
Inclination (i) 20.071°
Longitude of the
ascending node
(Ω)
142.315°
Argument of
perihelion
(ω)
212.314°
Mean anomaly (M) 0.049°
Physical characteristics D
Diameter 28-87 km
Mass 2.3-69×1016? kg
Density 2.0? g/cm³
Surface gravity 0.0078-0.024? m/s²
Escape velocity 0.015-0.046? km/s
Rotation period  ? d
Spectral class  ?
Absolute magnitude 9.13
Albedo (geometric) 0.10?
Mean surface
temperature
~12 K

(87269) 2000 OO67 (also written (87269) 2000 OO67) is a small Trans-Neptunian object (TNO) discovered by Deep Ecliptic Survey in 2000. It is remarkable for its highly eccentric orbit. At aphelion it is over 1,000 AU from the sun and, with a perihelion of 21 AU, crosses the orbit of Neptune at closest approach. 2000 OO67 is probably composed of rock and ices. Some astronomers list it as a centaur.[2][1]

2000 OO67 came to perihelion in April 2005.[3][1][4]

[edit] References

  1. ^ a b c Marc W. Buie (2004-08-23). "Orbit Fit and Astrometric record for 87269". Deep Ecliptic Survey. http://www.boulder.swri.edu/~buie/kbo/astrom/87269.html. Retrieved on 2008-05-18. 
  2. ^ Structure and Dynamics of the Centaur Population: Constraints on the Origin of Short-Period Comets
  3. ^ Yeomans, Donald K.. "Horizons Online Ephemeris System". California Institute of Technology, Jet Propulsion Laboratory. http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=2000OO67. Retrieved on 2008-01-25. 
  4. ^ "JPL Small-Body Database Browser: 87269 (2000 OO67)". 2004-09-29. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=87269. Retrieved on 2008-05-18. 

[edit] External links


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