+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   (2011 HM102) Classification: Centaur          SPK-ID: 3609595 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO239871 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0783977 n/a   a 30.0376590 n/a AU q 27.6827756 n/a AU i 29.42684 n/a deg node 100.98874 n/a deg peri 151.52516 n/a deg M 24.14109 n/a deg tp 2452368.2080445 (2002-Apr-03.70804450) n/a JED period 60130.8848928 164.63 n/a n/a d yr n 0.00598694 n/a deg/d Q 32.3925424 n/a AU   Orbit Determination Parameters    # obs. used (total)      145      first obs. used      2011-??-??      last obs. used      2012-04-17      # oppositions      2      planetary ephem.      DE403      condition code      4      fit RMS      0.08      data source      MPC:mpu      producer      MPCW   Additional Information  T_jup = 4.346   MPC Centaur  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 8.1 mag n/a MPO239871   [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2013-May-25 19:14 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin