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20000 Varuna (2000 WR106)
Classification: TransNeptunian Object          SPK-ID: 2020000
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05117833576803268 9.9899e-06  
a 43.19373012193917 0.0017582 AU
q 40.98314689868478 0.0012854 AU
i 17.14755168967219 0.00010722 deg
node 97.26730634287347 7.19e-05 deg
peri 273.0152406799705 0.035212 deg
M 101.483615129746 0.037187 deg
tp 2427770.896688775796
(1934-Nov-29.39668878)
8.9271 JED
period 103688.2375404894
283.88
6.331
0.01733
d
yr
n .003471946370574799 2.1199e-07 deg/d
Q 45.40431334519356 0.0018482 AU
  Orbit Determination Parameters
   # obs. used (total)      314  
   data-arc span      22000 days (60.23 yr)  
   first obs. used      1954-11-24  
   last obs. used      2015-02-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      2  
   fit RMS      .42581  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:59:31  

Additional Information
 Earth MOID = 40.0285 AU 
 T_jup = 5.619 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 3.6 mag n/a MPO263526  
diameter diameter 900 km 140 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  
rotation period rot_per 6.3436 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Farnham, T.L. (2001) IAUC 7583.]
[Jewitt, D.C.; Sheppard, S.S. (2002) Astron. J. 123, 2110-2120.]
[Lellouch, E.; Moreno, R.; Ortiz, J.L.; Paubert, G.; et al. (2002) Astron. Astrophys. 391, 1133-1139.]
[Sheppard, S.S.; Jewitt, D.C. (2002) Astron. J. 124, 1757-1775; Proc. ACM 2002, ESA SP 500, 21-24 (2002ESASP.500...21S); Sheppard, S.S. (2001) IAUC 7619 (2001IAUC.7619....3S).]
[Ortiz, J.L.; Gutierrez, P.J.; Casanova, V.; Sota, A. (2003) Astron. Astrophys. 407, 1149-1155.]
[Hicks, M.D.; Simonelli, D.P.; Buratti, B.J. (2005) Icarus 176, 492-498.]
[Rabinowitz, D.L.; Schaefer, B.E.; Tourtellotte, S.W. (2007) Astron. J. 133, 26-43.]
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Thirouin, A.; Ortiz, J.L.; Duffard, R.; Santos-Sanz, P.; et al. (2010) Astron. Astrophys. 522, A93.]
geometric albedo albedo 0.07   0.025 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  

20000 Varuna           Discovered 2000 Nov. 28 by Spacewatch at Kitt Peak.
Varuna is one of the oldest of the vedic deities, the maker and upholder of heaven and earth. As such he is king of gods and men and the universe, and he has unlimited knowledge. The name was suggested by M. Sarabhai.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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