+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2002 HP11) Classification: Apollo [NEO, PHA]          SPK-ID: 3120904 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .7654266196997694 0.00036781   a 2.067267193105438 0.0016357 au q .4849258534705121 0.00037668 au i 5.135334321514754 0.002311 deg node 9.189014848519413 0.0030134 deg peri 90.44952332976543 0.001863 deg M 52.91878151492968 3.5636 deg tp 2458840.911835139461 (2019-Dec-23.41183514) 10.557 TDB period 1085.658771897188 2.97 1.2885 0.003528 d yr n .3315959022473518 0.00039356 deg/d Q 3.649608532740364 0.0028877 au   Orbit Determination Parameters    # obs. used (total)      62      data-arc span      26 days      first obs. used      2002-04-21      last obs. used      2002-05-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .64765      source      ORB      producer      Otto Matic      solution date      2017-Apr-06 09:15:11   Additional Information  Earth MOID = .0164091 au   Jupiter MOID = 1.6029 au   T_jup = 3.325  [ 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 20.4   n/a MPO62390   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-18 18:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin