+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 CD2) Classification: Apollo [NEO]          SPK-ID: 54110088 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459254.5 (2021-Feb-09.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5095159657822819 0.0010395   a 1.572767168035542 0.0028854 au q .7714171854632483 0.00021973 au i 13.41177683774531 0.025752 deg node 318.516340767918 0.0050063 deg peri 271.2197444120784 0.014908 deg M 327.4187102274488 0.10711 deg tp 2459319.701989929435 (2021-Apr-15.20198993) 0.034912 TDB period 720.4354566212315 1.97 1.9826 0.005428 d yr n .4996977823500846 0.0013751 deg/d Q 2.374117150607835 0.0043556 au   Orbit Determination Parameters    # obs. used (total)      64      data-arc span      14 days      first obs. used      2021-02-06      last obs. used      2021-02-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      8      norm. resid. RMS      .39671      source      ORB      producer      Otto Matic      solution date      2021-Feb-21 05:18:01   Additional Information  Earth MOID = .0561383 au   Jupiter MOID = 2.75982 au   T_jup = 4.229  [ 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 22.91   .51053 E2021D74 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-03 02:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin