+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   8394 (1993 TM12) Classification: Main-belt Asteroid          SPK-ID: 2008394 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO236442 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1145234 n/a   a 2.2323687 n/a AU q 1.9767102 n/a AU i 2.45034 n/a deg node 134.32067 n/a deg peri 295.36719 n/a deg M 263.93263 n/a deg tp 2456725.6028102 (2014-Mar-09.10281020) n/a JED period 1218.2805844 3.34 n/a n/a d yr n 0.29549843 n/a deg/d Q 2.4880272 n/a AU   Orbit Determination Parameters    # obs. used (total)      821      first obs. used      1992-??-??      last obs. used      2012-08-13      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.55      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.631  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.6 mag n/a PDS3 (MPC 31364)   Alternate Designations  1993 TM12 = 1986 PG3 = 1996 NE3  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2013-May-23 16:27 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin