+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2011 DE5) Classification: Apollo [NEO]          SPK-ID: 3557956 [ 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 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6359932072787449 0.00051536   a 2.288032032829746 0.0029915 au q .8328592019138495 9.0249e-05 au i .1263429022027774 7.2298e-05 deg node 161.927238072139 0.0044599 deg peri 55.05609834973303 0.0062648 deg M 288.8143053874179 1.9965 deg tp 2459450.466496812639 (2021-Aug-23.96649681) 7.501 TDB period 1264.129532517682 3.46 2.4792 0.006788 d yr n .284780942727453 0.0005585 deg/d Q 3.743204863745643 0.004894 au   Orbit Determination Parameters    # obs. used (total)      36      data-arc span      4 days      first obs. used      2011-02-25      last obs. used      2011-03-01      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      7      norm. resid. RMS      .53309      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 04:51:01   Additional Information  Earth MOID = 1.89116E-5 au   Jupiter MOID = 1.23239 au   T_jup = 3.298  [ 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 26.4   n/a MPO193829   [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2011-Mar-01 17:44 < 00:01 Earth 0.0126020250301099 0.0125752187510779 0.0126288310981146 15.0734415117634 15.0594081471278 2455622.238891599 0.0283538031916978 1334.23734991389 3.37206103001564 -0.049667473349845 1040.72742744976 T 9 CATAB v2.0g-lin.ifort 2021-Apr-15 04:51:02 2021-Apr-15 04:51 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-15 18:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin