+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   214161 (2005 CQ20) Classification: Main-belt Asteroid          SPK-ID: 2214161 [ 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 .05868212427503298 4.1395e-08   a 2.332167318277456 1.4456e-08 au q 2.195310785876128 9.848e-08 au i 5.571773996399425 4.0827e-06 deg node 123.3659331428894 4.7254e-05 deg peri 295.107043931119 6.2539e-05 deg M 186.7681903569781 4.1012e-05 deg tp 2459626.483845854629 (2022-Feb-15.98384585) 0.00015017 TDB period 1300.882239653634 3.56 1.2095e-05 3.311e-08 d yr n .2767352716690571 2.573e-09 deg/d Q 2.469023850678784 1.5304e-08 au   Orbit Determination Parameters    # obs. used (total)      387      data-arc span      7091 days (19.41 yr)      first obs. used      2000-11-27      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54206      source      ORB      producer      Otto Matic      solution date      2020-May-21 09:03:28   Additional Information  Earth MOID = 1.21466 au   Jupiter MOID = 2.69491 au   T_jup = 3.561  [ 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 16.5   n/a MPO433401   214161 (2005 CQ20)          Discovered 2005-Feb-02 by CSS at Catalina Reference: 20090509/Numbers.arc Last Updated: 2009-05-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-12 07:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin