+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2013 CZ87) Classification: Apollo [NEO]          SPK-ID: 3626688 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3883946079279078 1.464e-05   a 1.618469902242701 3.8818e-05 au q .9898649191180283 3.8856e-07 au i 6.333896723723896 0.00019644 deg node 328.3269088437083 4.709e-05 deg peri 200.4868468428361 0.00021743 deg M 184.9340373580737 0.046161 deg tp 2459366.224945217117 (2021-May-31.72494522) 0.10959 TDB period 752.0649833426315 2.06 0.027057 7.408e-05 d yr n .4786820394162514 1.7221e-05 deg/d Q 2.247074885367375 5.3895e-05 au   Orbit Determination Parameters    # obs. used (total)      32      # delay obs. used      0      # Doppler obs. used      1      data-arc span      9 days      first obs. used      2013-02-11      last obs. used      2013-02-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      5      norm. resid. RMS      .43718      source      ORB      producer      Otto Matic      solution date      2017-Apr-06 08:46:50   Additional Information  Earth MOID = .0143286 au   Jupiter MOID = 2.73294 au   T_jup = 4.237  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 26.0   n/a MPO258453   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-25 16:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin