+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   227904 (2007 EB168) Classification: Main-belt Asteroid          SPK-ID: 2227904 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06304331521833238 6.6132e-08   a 2.794346996477037 3.3472e-08 au q 2.618182097948735 1.8901e-07 au i 5.195968103513027 6.3526e-06 deg node 40.36495288090382 7.4682e-05 deg peri 93.83280889153481 9.4196e-05 deg M 33.97286398451925 5.5753e-05 deg tp 2459039.491579753177 (2020-Jul-08.99157975) 0.00026366 TDB period 1706.156752497195 4.67 3.0656e-05 8.393e-08 d yr n .2110005422849281 3.7912e-09 deg/d Q 2.970511895005339 3.5582e-08 au   Orbit Determination Parameters    # obs. used (total)      183      data-arc span      5610 days (15.36 yr)      first obs. used      2004-09-13      last obs. used      2020-01-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .55343      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 00:41:36   Additional Information  Earth MOID = 1.63847 au   Jupiter MOID = 2.04628 au   T_jup = 3.319  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.7   n/a MPO454638   227904 (2007 EB168)          Discovered 2007-Mar-13 by Spacewatch at Kitt Peak Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-20 14:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin