+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 CC4) Classification: Amor [NEO]          SPK-ID: 54111262 [ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3544936877829389 2.9526e-05   a 1.716139027346799 0.00010276 au q 1.107778574794406 1.5807e-05 au i 42.00844175870283 0.0011061 deg node 153.3607815210051 0.00054191 deg peri 78.44269055926068 0.0034886 deg M 301.0228172191161 0.0068481 deg tp 2459335.026750298674 (2021-Apr-30.52675030) 0.0035474 TDB period 821.158757064605 2.25 0.073756 0.0002019 d yr n .4384048722647634 3.9377e-05 deg/d Q 2.324499479899191 0.00013919 au   Orbit Determination Parameters    # obs. used (total)      53      data-arc span      73 days      first obs. used      2021-01-17      last obs. used      2021-03-31      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      5      norm. resid. RMS      .32999      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 23:25:07   Additional Information  Earth MOID = .359585 au   Jupiter MOID = 3.15914 au   T_jup = 3.830  [ 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 20.22   .26071 E2021D77 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-21 21:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin