+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   53311 Deucalion (1999 HU11) Classification: TransNeptunian Object          SPK-ID: 2053311 [ 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 5 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06691585668189749 0.00015302   a 44.29755144969365 0.017775 au q 41.33334284552697 0.012237 au i .372776363281735 0.00030692 deg node 51.36104783724652 0.017654 deg peri 239.5475431628602 0.23934 deg M 306.7092427942359 0.23184 deg tp 2474941.567439801971 (2064-Jan-22.06743980) 59.788 TDB period 107688.1729447068 294.83 64.817 0.1775 d yr n .003342985493725892 2.0121e-06 deg/d Q 47.26176005386033 0.018964 au   Orbit Determination Parameters    # obs. used (total)      40      data-arc span      5492 days (15.04 yr)      first obs. used      1999-04-12      last obs. used      2014-04-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      4      norm. resid. RMS      .26387      source      ORB      producer      Otto Matic      solution date      2017-Apr-11 18:34:25   Additional Information  Earth MOID = 40.3171 au   Jupiter MOID = 36.155 au   T_jup = 5.940  [ 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 6.6   n/a MPO341046   53311 Deucalion           Discovered 1999 Apr. 18 by the Deep Ecliptic Survey at Kitt Peak. After a flood in which all humans were drowned except for Deucalion and Pyrrha, an oracle tells them to "throw the bones of their mother" behind them. Puzzled, they decided that their mother is Earth and her bones are stones. The stones they then threw over their shoulders sprang up into people to repopulate the world. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030614/MPCPages.arc Last Updated: 2005-04-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-14 00:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin