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346889 Rhiphonos (2009 QV38)
Classification: Centaur          SPK-ID: 2346889
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .443925502459704 3.6108e-06  
a 10.82784757240391 8.3564e-05 AU
q 6.021089898267418 7.9283e-06 AU
i 19.88663474817733 1.5923e-05 deg
node 11.53269197036629 3.9278e-05 deg
peri 13.62717651358093 0.00029682 deg
M 48.18940959802813 0.00065888 deg
tp 2455258.449535385357
(2010-Mar-02.94953539)
0.0038326 JED
period 13014.0247098386
35.63
0.15065
0.0004125
d
yr
n .02766246476601817 3.2023e-07 deg/d
Q 15.6346052465404 0.00012066 AU
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      1978 days (5.42 yr)  
   first obs. used      2009-08-28  
   last obs. used      2015-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      2  
   fit RMS      .61721  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 22:46:06  

Additional Information
 Earth MOID = 5.02827 AU 
 T_jup = 2.912 
[ 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 11.8 mag n/a MPO251960  

346889 Rhiphonos           Discovered 2009 Aug. 28 by T. V. Kryachko at tge Zelenchukskaya Station of the Engelhardt Observatory.
Rhiphonos (Riphonus) was one of the commanders of the Centaurs who joined Dionysus in his campaign against India. Name suggested by A. Mimeev.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-07-22Last Updated: 2014-08-13
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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