+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   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 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2446481582849619 2.2524e-05   a 39.37534023287257 0.0022494 AU q 29.74223576305653 0.0024168 AU i 19.67254437393121 0.00019266 deg node 71.04987410508278 4.2092e-05 deg peri 300.553099950722 0.0097075 deg M 275.9921421088657 0.009231 deg tp 2477460.206585882120 (2070-Dec-14.70658588) 0.85997 JED period 90247.44305160607 247.08 7.7332 0.02117 d yr n .003989032684218452 3.4182e-07 deg/d Q 49.00844470268861 0.0027997 AU   Orbit Determination Parameters    # obs. used (total)      171      data-arc span      10495 days (28.73 yr)      first obs. used      1982-07-17      last obs. used      2011-04-11      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      2      fit RMS      .44633      data source      ORB      producer      Otto Matic      solution date      2011-Sep-14 19:04:59   Additional Information  Earth MOID = 28.7867 AU   T_jup = 5.155  [ 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 3.2 mag n/a PDS3 (MPO 15528)   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.arc Last Updated: 2003-10-02 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 15:33 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin