+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2018 PD22) Classification: Aten [NEO]          SPK-ID: 3826804 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2458344.5 (2018-Aug-14.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .542356045588082 0.0059522   a .7943665456769879 0.0009885 au q .3635370472161522 0.0051697 au i 3.986759043125628 0.082922 deg node 123.0647465448693 0.18647 deg peri 359.2267774816805 0.097957 deg M 232.619863123486 0.44524 deg tp 2458436.001677490224 (2018-Nov-13.50167749) 0.47424 TDB period 258.6007889786947 0.71 0.4827 0.001322 d yr n 1.392107121644008 0.0025985 deg/d Q 1.225196044137824 0.0015246 au   Orbit Determination Parameters    # obs. used (total)      10      data-arc span      2 days      first obs. used      2018-08-13      last obs. used      2018-08-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      8      norm. resid. RMS      .30334      source      ORB      producer      Otto Matic      solution date      2018-Aug-15 12:42:03   Additional Information  Earth MOID = .0392838 au   Jupiter MOID = 3.85997 au   T_jup = 7.205  [ 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 24.0   .10457 MPO452059 autocmod 2.6n [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-07 22:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin