+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2015 AK1) Classification: Apollo [NEO]          SPK-ID: 3703319 [ 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 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5134422306990166 0.00026851   a 1.716817799721489 0.00083446 au q .8353310389287101 5.4972e-05 au i 2.818297802540872 0.00085704 deg node 315.3386724642151 0.00052006 deg peri 219.028032870358 0.0038012 deg M 120.7571882813408 0.61168 deg tp 2458724.889836042960 (2019-Aug-29.38983604) 1.1951 TDB period 821.6459859380952 2.25 0.59904 0.00164 d yr n .4381449020151645 0.00031944 deg/d Q 2.598304560514268 0.0012629 au   Orbit Determination Parameters    # obs. used (total)      79      data-arc span      18 days      first obs. used      2014-12-29      last obs. used      2015-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .42292      source      ORB      producer      Otto Matic      solution date      2017-Apr-06 08:36:30   Additional Information  Earth MOID = .0142249 au   Jupiter MOID = 2.37487 au   T_jup = 4.015  [ 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 24.3   n/a MPO382718   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-16 03:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin