+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   150905 (2001 SG353) Classification: Main-belt Asteroid          SPK-ID: 2150905 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08330999567275789 6.2448e-08   a 2.477990276091693 1.9914e-08 au q 2.271548916913358 1.4575e-07 au i 6.995835804332715 5.6515e-06 deg node 26.09731967033036 4.4829e-05 deg peri 180.139254018809 5.8504e-05 deg M 135.306838248933 3.6413e-05 deg tp 2458664.993102908530 (2019-Jun-30.49310291) 0.00014603 TDB period 1424.780043993449 3.90 1.7175e-05 4.702e-08 d yr n .2526705799380604 3.0459e-09 deg/d Q 2.684431635270028 2.1573e-08 au   Orbit Determination Parameters    # obs. used (total)      431      data-arc span      6963 days (19.06 yr)      first obs. used      2001-09-18      last obs. used      2020-10-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .58709      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 19:20:34   Additional Information  Earth MOID = 1.26616 au   Jupiter MOID = 2.27259 au   T_jup = 3.465  [ 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 16.44   n/a E2021B55   150905 (2001 SG353)          Discovered 2001-Sep-18 by Spacewatch at Kitt Peak Reference: 20070303/Numbers.arc Last Updated: 2007-03-07 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 08:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin