+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   10370 Hylonome (1995 DW2) Classification: Centaur          SPK-ID: 2010370 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2455786927614446 4.5057e-05   a 25.18900118199567 0.0018952 au q 19.00311919975469 0.00030145 au i 4.142264461194173 0.00013219 deg node 178.19270111477 0.0006704 deg peri 7.496506797293853 0.0049345 deg M 70.81476519409716 0.010764 deg tp 2449917.356702764113 (1995-Jul-18.85670276) 0.36943 TDB period 46175.84451550915 126.42 5.2113 0.01427 d yr n .007796284048017493 8.7987e-07 deg/d Q 31.37488316423664 0.0023606 au   Orbit Determination Parameters    # obs. used (total)      78      data-arc span      5576 days (15.27 yr)      first obs. used      1995-03-09      last obs. used      2010-06-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      3      norm. resid. RMS      .47479      source      ORB      producer      Otto Matic      solution date      2017-Apr-06 05:59:35   Additional Information  Earth MOID = 18.0052 au   Jupiter MOID = 13.5426 au   T_jup = 4.461  [ 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 8.6   n/a MPO186498   10370 Hylonome           Discovered 1995 Feb. 27 by D. C. Jewitt and J. X. Luu at Mauna Kea. Fairest of all the female centaurs, the beautiful and civilized Hylonome was in love with the handsome Cyllaros, who was accidentally killed by a javelin, thrown at a wedding. On witnessing this, Hylonome threw herself on the javelin and died. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20000726/MPCPages.arc Last Updated: 2013-03-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Dec-02 14:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin