+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 CF8) Classification: Aten [NEO]          SPK-ID: 54117604 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4018855661652375 0.00029669   a .9587281924550336 8.3077e-05 au q .5734291700316677 0.00023476 au i 2.045260233145281 0.0016689 deg node 353.3996690371779 0.001696 deg peri 288.7955045446862 0.0036344 deg M 204.5971669633382 0.044826 deg tp 2459348.512401683685 (2021-May-14.01240168) 0.023456 TDB period 342.8796217219286 0.94 0.044568 0.000122 d yr n 1.049931162989779 0.00013647 deg/d Q 1.344027214878399 0.00011646 au   Orbit Determination Parameters    # obs. used (total)      135      data-arc span      23 days      first obs. used      2021-02-12      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      6      norm. resid. RMS      .4017      source      ORB      producer      Otto Matic      solution date      2021-Apr-21 06:22:44   Additional Information  Earth MOID = .00573002 au   Jupiter MOID = 3.80084 au   T_jup = 6.213  [ 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 24.10   .51459 E2021-DA1 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-21 19:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin