+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   11310 (1993 SB15) Classification: Main-belt Asteroid          SPK-ID: 2011310 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .163204110708422 7.2449e-08   a 2.685174642941097 2.4515e-08 AU q 2.24694310324309 1.9292e-07 AU i 13.353257075 7.8759e-06 deg node 126.6421756228326 3.312e-05 deg peri 295.5287043990197 4.2018e-05 deg M 121.9012258279232 2.5907e-05 deg tp 2455856.294652475302 (2011-Oct-21.79465248) 0.00011267 JED period 1607.153035404623 4.40 2.2009e-05 6.026e-08 d yr n .2239985813854777 3.0675e-09 deg/d Q 3.123406182639104 2.8516e-08 AU   Orbit Determination Parameters    # obs. used (total)      749      data-arc span      9935 days (27.20 yr)      first obs. used      1986-02-07      last obs. used      2013-04-21      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .50411      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:43:59   Additional Information  Earth MOID = 1.29616 AU   T_jup = 3.317  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.8 mag n/a PDS3 (MPC 35568)   11310 (1993 SB15)          Discovered 1993-Sep-19 by Holt, H. E. at Palomar (675) Reference: 19990831/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1993 SB15 = 1989 YF6  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 08:32 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin