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28978 Ixion (2001 KX76)
Classification: TransNeptunian Object          SPK-ID: 2028978
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2425952731158688 1.9978e-05  
a 39.41999361876776 0.0019485 AU
q 29.85688950059698 0.0020808 AU
i 19.64520131798551 0.00014334 deg
node 71.03556422578181 3.3172e-05 deg
peri 300.2455397750147 0.0084921 deg
M 278.4884904068966 0.0079814 deg
tp 2477469.172952081370
(2070-Dec-23.67295208)
0.74841 JED
period 90401.00348445454
247.50
6.7027
0.01835
d
yr
n .003982256679948315 2.9526e-07 deg/d
Q 48.98309773693852 0.0024212 AU
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      11665 days (31.94 yr)  
   first obs. used      1982-07-17  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      2  
   fit RMS      .40694  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:25:01  

Additional Information
 Earth MOID = 28.902 AU 
 T_jup = 5.162 
[ 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 mag n/a MPO305587  

28978 Ixion           Discovered 2001 May 22 by the Deep Ecliptic Survey.
Ixion tried to win the love of Hera, but Zeus thwarted this by creating the cloud Nephele, which resembled Hera and by whom Ixion fathered the Centaurs. For his crimes Ixion was bound to a wheel that turns forever in the underworld. 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: 20020328/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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