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JPL Small-Body Database Browser
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54598 Bienor (2000 QC243)
Classification: Centaur          SPK-ID: 2054598
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1989377629275983 6.7756e-07  
a 16.44350239088402 2.6416e-05 au
q 13.17226881054694 2.8229e-05 au
i 20.74454142031399 1.2706e-05 deg
node 337.7284632933519 4.9436e-05 deg
peri 153.3736836927275 0.00038327 deg
M 318.4731106965637 0.00027086 deg
tp 2461809.920939246302
0.012003 TDB
period 24355.09991462273
n .01478129842464153 3.5618e-08 deg/d
Q 19.71473597122111 3.1671e-05 au
  Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      16275 days (44.56 yr)  
   first obs. used      1975-06-08  
   last obs. used      2019-12-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .45886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 08:56:19  

Additional Information
 Earth MOID = 12.1994 au 
 Jupiter MOID = 7.8731 au 
 T_jup = 3.575 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.5   n/a MPO240621  
diameter diameter 187.500 km 15.500 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (  
rotation period rot_per 9.14 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Ortiz, J.L.; Baumont, S.; Gutierrez, P.J.; Roos-Serote, M. (2002) Astron. Astrophys. 388, 661-666.]
[Ortiz, J.L.; Gutierrez, P.J.; Casanova, V.; Sota, A. (2003) Astron. Astrophys. 407, 1149-1155.]
[Rabinowitz, D.L.; Schaefer, B.E.; Tourtellotte, S.W. (2007) Astron. J. 133, 26-43.]
[Fernandez-Valenzuela, E.; Ortiz, J.L.; Duffard, R.; Morales, N.; Santoz-Sanz, P. (2017) Mon. Not. Royal Ast. Soc. 466, 4147-4158.]
geometric albedo albedo 0.050   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (  

54598 Bienor           Discovered 2000 Aug. 27 by the Deep Ecliptic Survey.
Bienor, one of the centaurs who tried to kidnap the bride Hippodame and other women at the wedding of Pirithous, was overcome by the hero Theseus, who jumped on his back, smashed his face and pounded his temples. The name was suggested by E. K. Elliot.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040107/MPCPages.arcLast Updated: 2004-01-07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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