+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2002 JQ9) Classification: Apollo [NEO, PHA]          SPK-ID: 3125005 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .394428079364161 2.609e-07   a 1.156189726751642 5.5485e-09 au q .7001560334484178 3.0338e-07 au i 24.99765310494889 4.9631e-05 deg node 51.91339708354919 6.4244e-06 deg peri 76.07453681374059 3.2032e-05 deg M 242.0012414033775 3.8179e-05 deg tp 2459149.339096032120 (2020-Oct-26.83909603) 4.9067e-05 TDB period 454.090154920467 1.24 3.2687e-06 8.949e-09 d yr n .7927941094936385 5.7069e-09 deg/d Q 1.612223420054866 7.737e-09 au   Orbit Determination Parameters    # obs. used (total)      187      data-arc span      6719 days (18.40 yr)      first obs. used      2002-05-06      last obs. used      2020-09-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46227      source      ORB      producer      Otto Matic      solution date      2020-Sep-28 06:24:31   Additional Information  Earth MOID = .0482458 au   Jupiter MOID = 3.64628 au   T_jup = 5.286  [ 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 19.2   n/a MPO232508   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-18 18:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin