+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 CP3) Classification: Amor [NEO]          SPK-ID: 54111252 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6684695974881958 0.00013652   a 3.562174534585734 0.0015629 au q 1.180969157268507 3.1861e-05 au i 9.668679573291479 0.0014618 deg node 322.1847489170329 0.0012866 deg peri 239.0995703811098 0.0012131 deg M 343.4303486530764 0.010945 deg tp 2459313.526970773754 (2021-Apr-09.02697077) 0.0003645 TDB period 2455.676865289377 6.72 1.6161 0.004425 d yr n .1465990925306769 9.6478e-05 deg/d Q 5.943379911902961 0.0026076 au   Orbit Determination Parameters    # obs. used (total)      55      data-arc span      58 days      first obs. used      2021-02-07      last obs. used      2021-04-06      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      6      norm. resid. RMS      .37668      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 23:25:07   Additional Information  Earth MOID = .233662 au   Jupiter MOID = .552982 au   T_jup = 2.674  [ 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 21.32   .5971 E2021D74 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-22 12:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin