+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 CX5) Classification: Apollo [NEO]          SPK-ID: 54115833 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .384041356321272 2.0203e-05   a 1.63027531394403 5.3719e-05 au q 1.004182171199877 1.5974e-07 au i 1.743437467039307 7.1504e-05 deg node 215.4852458568445 0.00022256 deg peri 341.4405082967715 0.00012309 deg M 308.4239989754716 0.0025007 deg tp 2459309.426869025675 (2021-Apr-04.92686903) 0.00010346 TDB period 760.3085169513981 2.08 0.037579 0.0001029 d yr n .4734919995944391 2.3403e-05 deg/d Q 2.256368456688182 7.4349e-05 au   Orbit Determination Parameters    # obs. used (total)      101      data-arc span      73 days      first obs. used      2021-02-06      last obs. used      2021-04-20      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      5      norm. resid. RMS      .37209      source      ORB      producer      Otto Matic      solution date      2021-Apr-21 06:22:44   Additional Information  Earth MOID = .00584064 au   Jupiter MOID = 2.69993 au   T_jup = 4.225  [ 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 24.33   .27655 E2021-DA1 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-22 12:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin