Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
JPL Small-Body Database Browser
Search: [ help ]  
54598 Bienor (2000 QC243)
Classification: Centaur          SPK-ID: 2054598
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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.

Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 56 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1991397657286174 3.8797e-07  
a 16.45641053520357 4.4326e-06 au
q 13.17928479648918 7.5698e-06 au
i 20.7450818942432 7.1999e-06 deg
node 337.7119041065204 3.095e-05 deg
peri 153.1625329526736 7.8358e-05 deg
M 321.6184170432323 5.6428e-05 deg
tp 2461800.189487166389
0.003099 TDB
period 24383.78366087888
n .01476391051556042 5.9651e-09 deg/d
Q 19.73353627391796 5.3153e-06 au
  Orbit Determination Parameters
   # obs. used (total)      767  
   data-arc span      24895 days (68.16 yr)  
   first obs. used      1953-01-12  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42025  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:02:49  

Additional Information
 Earth MOID = 12.2066 au 
 Jupiter MOID = 7.88144 au 
 T_jup = 3.576 
[ 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 7.54   n/a MPCxxxxx  
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. 2020-October); 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 ]
FirstGov 2021-May-10 05:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin