+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2011 OV4) Classification: Amor [NEO]          SPK-ID: 3573148 [ 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 86 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4096387759188296 6.6808e-08   a 2.165298590198292 8.6681e-08 au q 1.278308326210696 1.6999e-07 au i 7.471278951299335 5.8209e-06 deg node 307.1747498193989 2.9891e-05 deg peri 30.03526103967152 4.2646e-05 deg M 331.0829381916939 7.48e-05 deg tp 2459293.981738199089 (2021-Mar-20.48173820) 0.0002474 TDB period 1163.791327582437 3.19 6.9883e-05 1.913e-07 d yr n .3093338053548086 1.8575e-08 deg/d Q 3.052288854185888 1.2219e-07 au   Orbit Determination Parameters    # obs. used (total)      592      data-arc span      3194 days (8.74 yr)      first obs. used      2011-07-25      last obs. used      2020-04-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .3038      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 05:10:39   Additional Information  Earth MOID = .274664 au   Jupiter MOID = 2.36684 au   T_jup = 3.570  [ 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 18.6   n/a MPO235398   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-17 09:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin