+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   160334 (2003 QH109) Classification: Main-belt Asteroid          SPK-ID: 2160334 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2017829641669807 5.9818e-08   a 2.64445673394781 1.7127e-08 au q 2.110850415560488 1.655e-07 au i 13.95817323163465 5.7364e-06 deg node 302.2718422977719 1.6164e-05 deg peri 13.94091483301503 2.0706e-05 deg M 26.14591599148728 9.7516e-06 deg tp 2459086.421320247355 (2020-Aug-24.92132025) 4.2783e-05 TDB period 1570.735740309247 4.30 1.5259e-05 4.178e-08 d yr n .2291919581132871 2.2265e-09 deg/d Q 3.178063052335131 2.0582e-08 au   Orbit Determination Parameters    # obs. used (total)      550      data-arc span      11113 days (30.43 yr)      first obs. used      1990-07-24      last obs. used      2020-12-26      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4652      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 20:00:56   Additional Information  Earth MOID = 1.0973 au   Jupiter MOID = 2.12215 au   T_jup = 3.323  [ 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 15.71   n/a E2021B55   160334 (2003 QH109)          Discovered 2003-Aug-31 by LINEAR at Socorro Reference: 20070730/Numbers.arc Last Updated: 2007-08-06 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 13:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin