+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   160436 (2005 SX128) Classification: Main-belt Asteroid          SPK-ID: 2160436 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0930662987191079 4.3174e-08   a 2.655564600645992 1.6327e-08 au q 2.408421032254383 1.1281e-07 au i 9.335958789328156 4.6137e-06 deg node 148.063086180532 2.4867e-05 deg peri 186.5330015617266 3.4155e-05 deg M 221.7581089898044 2.5836e-05 deg tp 2459807.475131853194 (2022-Aug-15.97513185) 0.00011603 TDB period 1580.642783966505 4.33 1.4577e-05 3.991e-08 d yr n .2277554445898313 2.1004e-09 deg/d Q 2.9027081690376 1.7846e-08 au   Orbit Determination Parameters    # obs. used (total)      482      data-arc span      6296 days (17.24 yr)      first obs. used      2003-01-25      last obs. used      2020-04-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48705      source      ORB      producer      Otto Matic      solution date      2020-May-21 01:33:17   Additional Information  Earth MOID = 1.39646 au   Jupiter MOID = 2.43724 au   T_jup = 3.363  [ 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 15.98   n/a E2021B55   160436 (2005 SX128)          Discovered 2005-Sep-29 by NEAT at Palomar Reference: 20070730/Numbers.arc Last Updated: 2007-08-06 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-13 23:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin