+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   268287 (2005 QW44) Classification: Main-belt Asteroid          SPK-ID: 2268287 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2337795048802151 4.9445e-08   a 2.428901527911079 9.8064e-09 au q 1.861074131313229 1.237e-07 au i 2.838064074769559 4.6472e-06 deg node 26.90035040202126 0.00010521 deg peri 349.3377443473509 0.00010577 deg M 302.1517626429498 1.2174e-05 deg tp 2459222.677931280447 (2021-Jan-08.17793128) 4.7465e-05 TDB period 1382.653282368556 3.79 8.3734e-06 2.293e-08 d yr n .2603689620461476 1.5768e-09 deg/d Q 2.996728924508929 1.2099e-08 au   Orbit Determination Parameters    # obs. used (total)      293      data-arc span      7031 days (19.25 yr)      first obs. used      2001-07-21      last obs. used      2020-10-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52334      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 22:13:53   Additional Information  Earth MOID = .86264 au   Jupiter MOID = 2.46624 au   T_jup = 3.469  [ 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 16.8   n/a MPO433741   268287 (2005 QW44)          Discovered 2005-Aug-26 by NEAT at Palomar Reference: 20110319/Numbers.arc Last Updated: 2011-03-23 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-25 08:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin