+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 47 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05697488498725042 3.43e-06   a 42.71399766551034 0.00049879 au q 40.28037256117221 0.00055946 au i 17.21621382355236 3.3785e-05 deg node 97.36315646589311 4.3319e-05 deg peri 262.5802325854764 0.0090641 deg M 119.3739273668078 0.0095057 deg tp 2425389.288083042855 (1928-May-22.78808304) 2.1097 TDB period 101965.6181094117 279.17 1.7861 0.00489 d yr n .003530601850652353 6.1843e-08 deg/d Q 45.14762276984847 0.00052721 au   Orbit Determination Parameters    # obs. used (total)      734      data-arc span      24161 days (66.15 yr)      first obs. used      1954-11-24      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      2      norm. resid. RMS      .34728      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:45:41   Additional Information  Earth MOID = 39.3208 au   Jupiter MOID = 35.5292 au   T_jup = 5.586  [ 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. 2020-October); 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; Sheppard, S.S. (2001) IAUC 7619.] [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.arc Last Updated: 2009-05-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2021-Feb-25 08:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin