+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2011 DQ) Classification: Apollo [NEO]          SPK-ID: 3557827 [ 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 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3430984066196706 0.00059473   a 1.536097592081781 0.0014239 au q 1.009064955826209 2.1999e-05 au i 5.81347658186043 0.0081831 deg node 333.4204766535663 0.00017366 deg peri 195.0899854018382 0.0040961 deg M 305.6628805620147 2.4307 deg tp 2459105.459257603894 (2020-Sep-12.95925760) 4.8412 TDB period 695.3871152578512 1.90 0.96691 0.002647 d yr n .5176972539482719 0.00071984 deg/d Q 2.063130228337352 0.0019125 au   Orbit Determination Parameters    # obs. used (total)      28      data-arc span      3 days      first obs. used      2011-02-23      last obs. used      2011-02-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .35673      source      ORB      producer      Otto Matic      solution date      2019-Jul-17 06:09:30   Additional Information  Earth MOID = .0240148 au   Jupiter MOID = 2.91297 au   T_jup = 4.403  [ 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 26.2   n/a MPO193822   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-20 05:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin