+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   160850 (2001 CB20) Classification: Inner Main-belt Asteroid          SPK-ID: 2160850 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1185743069772661 4.6627e-08   a 1.897682950619284 9.9626e-09 au q 1.672666509887029 9.1879e-08 au i 24.00012950584031 7.0427e-06 deg node 139.5316579951081 1.0889e-05 deg peri 293.6081922567564 3.1165e-05 deg M 289.9966656334346 3.267e-05 deg tp 2459386.173590771714 (2021-Jun-20.67359077) 8.7285e-05 TDB period 954.8472695286662 2.61 7.5192e-06 2.059e-08 d yr n .3770236471197158 2.969e-09 deg/d Q 2.122699391351539 1.1144e-08 au   Orbit Determination Parameters    # obs. used (total)      402      data-arc span      7127 days (19.51 yr)      first obs. used      2001-02-02      last obs. used      2020-08-08      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5055      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 20:03:04   Additional Information  Earth MOID = .76713 au   Jupiter MOID = 3.07831 au   T_jup = 3.838  [ 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 16.6   n/a MPO469700   160850 (2001 CB20)          Discovered 2001-Feb-02 by LINEAR at Socorro Reference: 20070828/Numbers.arc Last Updated: 2007-08-30 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-19 07:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin