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55576 Amycus (2002 GB10)
Classification: Centaur          SPK-ID: 2055576
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3951083829870706 3.361e-05  
a 25.21804214591844 0.0015885 au
q 15.25418229154481 0.00011716 au
i 13.32237583821843 6.3324e-05 deg
node 315.5487046761168 0.00035904 deg
peri 239.8194801562971 0.0014142 deg
M 45.90159676489117 0.0038696 deg
tp 2452702.690116888363
0.07021 TDB
period 46255.72327680273
n .007782820686765483 7.3535e-07 deg/d
Q 35.18190200029207 0.0022161 au
  Orbit Determination Parameters
   # obs. used (total)      76  
   data-arc span      7204 days (19.72 yr)  
   first obs. used      1987-11-24  
   last obs. used      2007-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .65697  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 18:18:41  

Additional Information
 Earth MOID = 14.2754 au 
 Jupiter MOID = 9.9975 au 
 T_jup = 4.142 
[ 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 7.8   n/a MPO130071  
diameter diameter 100.900 km 40.100 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (  
rotation period rot_per 9.76 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Ortiz, J.L.; Duffard, R.; Santos-Sanz, P.; et al. (2010) Astron. Astrophys. 522, A93.]
geometric albedo albedo 0.180   0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (  

55576 Amycus           Discovered 2002 Apr. 8 by the NEAT at Palomar.
Amycus was the first centaur to engage in battle with the Lapiths after Eurytus was killed for raping Peirithous' bride Hippodamia. He began the battle by smashing the face of the Celadon with a candelabrum stripped from the inmost wedding shrine. Pelates of Pella killed Amycus by stabbing him with a table leg from a maple tree.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2019-Oct-21 21:18 UT
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