+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1797936279906755 3.7301e-08   a 3.157430856680015 3.1863e-08 au q 2.589744907827808 1.2017e-07 au i 13.14706936629476 4.7502e-06 deg node 127.4843548095496 2.3242e-05 deg peri 345.0488775986215 2.8947e-05 deg M 314.4356472904312 1.8586e-05 deg tp 2459259.871291458042 (2021-Feb-14.37129146) 0.00010807 TDB period 2049.270084446653 5.61 3.102e-05 8.493e-08 d yr n .1756723053404685 2.6592e-09 deg/d Q 3.725116805532221 3.7592e-08 au   Orbit Determination Parameters    # obs. used (total)      434      data-arc span      9694 days (26.54 yr)      first obs. used      1994-04-16      last obs. used      2020-10-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59448      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:59:10   Additional Information  Earth MOID = 1.60842 au   Jupiter MOID = 1.39352 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 ] 2020-Nov-28 20:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin