+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101671 (1999 CB100) Classification: Main-belt Asteroid          SPK-ID: 2101671 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .179940159950362 3.7222e-08   a 3.158263580004833 2.6525e-08 au q 2.58996512625336 1.1996e-07 au i 13.14716770149164 4.6608e-06 deg node 127.4833096811525 2.1761e-05 deg peri 344.9905238288338 2.6808e-05 deg M 349.6156952826306 1.5527e-05 deg tp 2459259.635177947327 (2021-Feb-14.13517795) 8.8715e-05 TDB period 2050.080832607779 5.61 2.5826e-05 7.071e-08 d yr n .1756028319830036 2.2122e-09 deg/d Q 3.726562033756306 3.1298e-08 au   Orbit Determination Parameters    # obs. used (total)      542      data-arc span      9817 days (26.88 yr)      first obs. used      1994-04-16      last obs. used      2021-03-02      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54539      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:37:58   Additional Information  Earth MOID = 1.60856 au   Jupiter MOID = 1.3921 au   T_jup = 3.140  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.9   n/a MPO417513   diameter diameter 6.491 km 0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.055   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101671 (1999 CB100)          Discovered 1999-Feb-10 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1999 CB100 = 2003 WC163  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-20 05:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin