+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2011 TO) Classification: Aten [NEO]          SPK-ID: 3580964 [ 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 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2800598269238246 7.1392e-06   a .9266945362032319 1.5649e-06 au q .667164624782901 7.7419e-06 au i 2.235704884254876 4.6672e-05 deg node 185.1603101830548 0.00042077 deg peri 57.58595206716776 0.00063806 deg M 216.3417344302493 0.0095897 deg tp 2459330.526373042254 (2021-Apr-26.02637304) 0.0090089 TDB period 325.8391997812613 0.89 0.00082537 2.26e-06 d yr n 1.104839443018738 2.7986e-06 deg/d Q 1.186224447623563 2.0032e-06 au   Orbit Determination Parameters    # obs. used (total)      41      data-arc span      469 days (1.28 yr)      first obs. used      2011-10-01      last obs. used      2013-01-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      4      norm. resid. RMS      .35955      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 05:30:09   Additional Information  Earth MOID = .000299121 au   Jupiter MOID = 3.81956 au   T_jup = 6.425  [ 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 26.3   n/a MPO249993   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-22 12:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin