+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   268347 (2005 SZ244) Classification: Main-belt Asteroid          SPK-ID: 2268347 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 7 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .183349222358177 6.8726e-08   a 2.646318940864765 1.9461e-08 au q 2.161118420945495 1.8673e-07 au i .4833053183216695 7.0122e-06 deg node 275.8685644403437 0.0012081 deg peri 167.7292098163813 0.0012089 deg M 96.51527752344106 4.0416e-05 deg tp 2458578.944007007359 (2019-Apr-05.44400701) 0.00017476 TDB period 1572.395183140742 4.30 1.7345e-05 4.749e-08 d yr n .2289500781100886 2.5255e-09 deg/d Q 3.131519460784034 2.3029e-08 au   Orbit Determination Parameters    # obs. used (total)      115      data-arc span      6725 days (18.41 yr)      first obs. used      2001-11-21      last obs. used      2020-04-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .70708      source      ORB      producer      Otto Matic      solution date      2020-May-21 15:34:09   Additional Information  Earth MOID = 1.17719 au   Jupiter MOID = 2.09887 au   T_jup = 3.368  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.9   n/a MPO321429   268347 (2005 SZ244)          Discovered 2005-Sep-30 by Mt. Lemmon Survey at Mount Lemmon Reference: 20110319/Numbers.arc Last Updated: 2011-03-23 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-23 21:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin