+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   53311 Deucalion (1999 HU11) Classification: TransNeptunian Object          SPK-ID: 2053311 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO57650 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0597760 n/a   a 43.9675250 n/a AU q 41.3393222 n/a AU i 0.36460 n/a deg node 51.55376 n/a deg peri 242.94474 n/a deg M 293.84237 n/a deg tp 2475969.7105185 (2066-Nov-15.21051850) n/a JED period 106486.8222557 291.55 n/a n/a d yr n 0.00338070 n/a deg/d Q 46.5957278 n/a AU   Orbit Determination Parameters    # obs. used (total)      34      first obs. used      1999-??-??      last obs. used      2003-05-31      # oppositions      5      planetary ephem.      DE403      condition code      3      fit RMS      0.28      data source      MPC:mpn      producer      MPCW   Additional Information  T_jup = 5.922   MPC Cubewano   MPC critical-list numbered object  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 6.6 mag n/a MPO57650   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 | Physical Parameters | Discovery Circumstances ] 2013-May-24 17:20 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin