+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   168502 (1999 SS10) Classification: Main-belt Asteroid          SPK-ID: 2168502 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO226962 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2442403 n/a   a 2.3657792 n/a AU q 1.7879606 n/a AU i 3.50474 n/a deg node 328.83430 n/a deg peri 34.23470 n/a deg M 263.31938 n/a deg tp 2456757.4411784 (2014-Apr-09.94117840) n/a JED period 1329.1063322 3.64 n/a n/a d yr n 0.27085869 n/a deg/d Q 2.9435978 n/a AU   Orbit Determination Parameters    # obs. used (total)      200      first obs. used      1997-??-??      last obs. used      2012-03-13      # oppositions      9      planetary ephem.      DE403      condition code      1      fit RMS      0.53      data source      MPC:mpu      producer      MPCLINUX   Additional Information  T_jup = 3.505  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.7 mag n/a MPO226962   168502 (1999 SS10)          Discovered 1999-Sep-29 by BAO Schmidt CCD Asteroid Program at Xinglong (327) Reference: 20071124/Numbers.arc Last Updated: 2007-11-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 04:15 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin