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

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0518135057293576 1.0507e-05  
a 43.20732078358449 0.0017794 AU
q 40.96859802061404 0.0012828 AU
i 17.1421577609741 0.00011549 deg
node 97.26068921784466 7.4518e-05 deg
peri 273.5148426752428 0.035019 deg
M 100.2120551060735 0.036984 deg
tp 2427923.511459446134
(1935-May-01.01145945)
8.8745 JED
period 103737.1787615335
284.02
6.4082
0.01754
d
yr
n .003470308372541655 2.1437e-07 deg/d
Q 45.44604354655493 0.0018716 AU
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      21613 days (59.17 yr)  
   first obs. used      1954-11-24  
   last obs. used      2014-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      2  
   fit RMS      .42871  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:35:25  

Additional Information
 Earth MOID = 40.0128 AU 
 T_jup = 5.620 
[ 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 Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) 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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