+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15487 (1999 CC63) Classification: Main-belt Asteroid          SPK-ID: 2015487 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1310386077783012 3.3943e-08   a 3.179887472160443 1.9672e-08 au q 2.763199444916877 1.0844e-07 au i 5.066686474623891 3.99e-06 deg node 225.6322490038078 4.8885e-05 deg peri 11.54370277136359 5.176e-05 deg M 191.0051432033725 1.8287e-05 deg tp 2459972.770348372818 (2023-Jan-28.27034837) 0.00010894 TDB period 2071.171466688088 5.67 1.922e-05 5.262e-08 d yr n .1738146772443031 1.6129e-09 deg/d Q 3.596575499404009 2.225e-08 au   Orbit Determination Parameters    # obs. used (total)      1963      data-arc span      9429 days (25.82 yr)      first obs. used      1994-04-11      last obs. used      2020-02-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50115      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 21:19:42   Additional Information  Earth MOID = 1.75169 au   Jupiter MOID = 1.40774 au   T_jup = 3.180  [ 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 13.0   n/a MPO365438   diameter diameter 11.069 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.131   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15487 (1999 CC63)          Discovered 1999-Feb-12 by LINEAR at Socorro Reference: 20000621/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 CC63 = 1994 GW8 = 1997 WF44  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-29 05:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin