+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   160650 (1999 XB75) Classification: Main-belt Asteroid          SPK-ID: 2160650 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2146185187649323 5.7012e-08   a 2.57768491725029 1.5185e-08 au q 2.024465998467326 1.5512e-07 au i 2.97672345325839 4.1338e-06 deg node 86.47875049835115 9.9227e-05 deg peri 299.8766854379813 0.00010015 deg M 18.05212221910853 1.6492e-05 deg tp 2458924.700046913698 (2020-Mar-16.20004691) 6.8752e-05 TDB period 1511.621890205452 4.14 1.3357e-05 3.657e-08 d yr n .2381547940874755 2.1044e-09 deg/d Q 3.130903836033255 1.8444e-08 au   Orbit Determination Parameters    # obs. used (total)      659      data-arc span      7270 days (19.90 yr)      first obs. used      1999-12-07      last obs. used      2019-11-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5127      source      ORB      producer      Otto Matic      solution date      2019-Dec-04 13:52:17   Additional Information  Earth MOID = 1.03088 au   Jupiter MOID = 2.32156 au   T_jup = 3.392  [ 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 15.8   n/a MPO502932   160650 (1999 XB75)          Discovered 1999-Dec-07 by LINEAR at Socorro Reference: 20070828/Numbers.arc Last Updated: 2007-08-30 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-27 13:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin