+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2003 SS84) Classification: Apollo [NEO, PHA]          SPK-ID: 3160741 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 43 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5717943627612347 5.633e-08   a 1.93059959139239 5.3518e-09 au q .8266936282850781 1.0698e-07 au i 5.492286734372611 9.8166e-06 deg node 198.19442149672 2.1218e-05 deg peri 234.9078729234676 2.2111e-05 deg M 57.92451030274042 1.0779e-05 deg tp 2458842.849042813993 (2019-Dec-25.34904281) 2.8703e-05 TDB period 979.798435762992 2.68 4.0741e-06 1.115e-08 d yr n .3674225094262981 1.5278e-09 deg/d Q 3.034505554499701 8.4119e-09 au   Orbit Determination Parameters    # obs. used (total)      265      # delay obs. used      3      # Doppler obs. used      1      data-arc span      6028 days (16.50 yr)      first obs. used      2003-09-20      last obs. used      2020-03-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40995      source      ORB      producer      Otto Matic      solution date      2020-Mar-24 06:22:07   Additional Information  Earth MOID = .00530653 au   Jupiter MOID = 2.29886 au   T_jup = 3.690  [ 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 21.8   n/a MPO264930   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-26 16:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin