(84522) 2002 TC302

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The correct title of this article is (84522) 2002 TC302. It features superscript or subscript characters that are substituted or omitted because of technical limitations.
(84522) 2002 TC302
Discovery
Discovered by NEAT
Discovery date October 9, 2002
Designations
MPC designation (84522) 2002 TC302
Alternative names none
Minor planet
category		 TNO (SDO)
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 10,618.967 Gm (70.983 AU)
Perihelion 5,843.055 Gm (39.058 AU)
Semi-major axis 8,231.011 Gm (55.021 AU)
Eccentricity 0.290
Orbital period 149,069.948 d (408.13 a)
Average orbital speed 3.93 km/s
Mean anomaly 313.636°
Inclination 35.109°
Longitude of ascending node 23.874°
Argument of perihelion 87.222°
Physical characteristics
Dimensions 420-1,190 km [1]
820-1,480 km[2]
Mass 0.78-18×1020? kg
Mean density 2.0? g/cm³
Equatorial surface gravity 0.12-0.33? m/s²
Escape velocity 0.22-0.63? km/s
Sidereal rotation
period		 ? d
Albedo >0.051[3]
Spectral type (red) B-V=1.03; V-R=0.67 [4]
Apparent magnitude 20.5
Absolute magnitude 3.85

(84522) 2002 TC302 is a large red 2:5 resonant Trans-Neptunian object discovered on October 9, 2002 by the NEAT program at the Palomar Observatory. [5].

Contents

[edit] Orbit

Orbiting the sun at a distance of 39.058 to 70.983 AU. Due to the resonance, it completes 2 orbits for every 5 orbits of Neptune. Given the long orbit that TNOs have around the sun, 2002 TC302 comes to opposition in late October of each year at an apparent magnitude of 20.5.

[edit] Surface

The red spectra suggests that 2002 TC302 has very little ice on its surface and explains why it has a lower than average albedo.


[edit] References

  1. ^ Absolute Magnitude (H). Retrieved on 2006-11-06.
  2. ^ John Stansberry, Will Grundy, Mike Brown, John Spencer, David Trilling, Dale Cruikshank, Jean-Luc Margot (2007). Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope. University of Arizona, Lowell Observatory, California Institute of Technology, NASA Ames Research Center, Southwest Research Institute, Cornell University. Retrieved on 2007-12-01.
  3. ^ Grundy, W. M.; Noll, K. S.; Stephens, D. C. (2004). Diverse albedos of small trans-neptunian objects 22. Retrieved on 2006-11-07.
  4. ^ Tegler, Stephen C. (2006-01-26). Kuiper Belt Object Magnitudes and Surface Colors. Retrieved on 2006-11-05.
  5. ^ List of classified orbits from MPC

[edit] See also

[edit] External links

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