+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2018 CS2) Classification: Aten [NEO]          SPK-ID: 3799299 [ 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 6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2761104537493732 0.00018503   a .809706348055467 9.3549e-05 au q .586137960890124 0.00021754 au i 4.26419724776603 0.0035674 deg node 347.4349003403624 0.0077432 deg peri 356.7980026727644 0.0045403 deg M 111.404467069841 0.23846 deg tp 2459118.145023475463 (2020-Sep-25.64502348) 0.162 TDB period 266.1274931663809 0.73 0.046121 0.0001263 d yr n 1.352735095937385 0.00023443 deg/d Q 1.03327473522081 0.00011938 au   Orbit Determination Parameters    # obs. used (total)      29      data-arc span      25 days      first obs. used      2018-02-08      last obs. used      2018-03-05      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      7      norm. resid. RMS      .70291      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 20:22:04   Additional Information  Earth MOID = .0247313 au   Jupiter MOID = 4.3064 au   T_jup = 7.182  [ 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 25.5   n/a E2018E19   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-22 11:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin