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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05616554591906961 3.9777e-06  
a 42.71774203617168 0.00085048 au
q 40.3184767342801 0.00083204 au
i 17.22129117323423 5.6488e-05 deg
node 97.37194399754895 6.1018e-05 deg
peri 262.2138526664926 0.016174 deg
M 119.1281963431023 0.017194 deg
tp 2425254.451549727579
(1928-Jan-08.95154973)
3.8697 TDB
period 101979.0260830344
279.20
3.0455
0.008338
d
yr
n .003530137655039745 1.0542e-07 deg/d
Q 45.11700733806325 0.00089825 au
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      23805 days (65.17 yr)  
   first obs. used      1954-11-24  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .39242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:59:29  

Additional Information
 Earth MOID = 39.3603 au 
 Jupiter MOID = 35.5654 au 
 T_jup = 5.587 
[ 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   n/a MPO439232  
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. 2019-August); 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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