+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 CP2) Classification: Aten [NEO]          SPK-ID: 54110691 [ 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 .2796173160760566 4.4065e-05   a .97087971422752 2.0864e-06 au q .6994049343025319 4.4082e-05 au i 8.407161320662309 0.0016328 deg node 336.1988721464123 0.00016586 deg peri 339.6151782790536 0.00059912 deg M 140.8396429493629 0.0022086 deg tp 2459063.799852899148 (2020-Aug-02.29985290) 0.0019088 TDB period 349.4190408733166 0.96 0.0011263 3.084e-06 d yr n 1.030281575669826 3.321e-06 deg/d Q 1.242354494152508 2.6698e-06 au   Orbit Determination Parameters    # obs. used (total)      54      data-arc span      43 days      first obs. used      2021-02-06      last obs. used      2021-03-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      4      norm. resid. RMS      .42564      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 23:25:01   Additional Information  Earth MOID = .102726 au   Jupiter MOID = 4.01792 au   T_jup = 6.180  [ 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 23.13   .39949 E2021D77 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-21 22:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin