+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   11979 (1995 SS5) Classification: Main-belt Asteroid          SPK-ID: 2011979 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253448 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1688807 n/a   a 2.5602404 n/a AU q 2.1278652 n/a AU i 13.37750 n/a deg node 207.54301 n/a deg peri 91.97278 n/a deg M 173.98450 n/a deg tp 2455677.3513030 (2011-Apr-25.85130300) n/a JED period 1496.3030093 4.10 n/a n/a d yr n 0.24059298 n/a deg/d Q 2.9926156 n/a AU   Orbit Determination Parameters    # obs. used (total)      475      first obs. used      1991-??-??      last obs. used      2013-02-14      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.54      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.378  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.8 mag n/a PDS3 (MPC 36267)   11979 (1995 SS5)          Discovered 1995-Sep-25 by Beijing Schmidt CCD Asteroid Program at Xinglong (327) Reference: 19991026/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1995 SS5 = 1995 UZ7 = 1998 HK99  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-18 06:32 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin