+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   173506 (2000 UW22) Classification: Main-belt Asteroid          SPK-ID: 2173506 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1874181692818783 5.2277e-08   a 2.213944402596689 1.2458e-08 au q 1.799010995770156 1.192e-07 au i 4.031472759825557 4.9666e-06 deg node 118.7575330318616 7.852e-05 deg peri 231.4760820924484 7.9694e-05 deg M 74.83031004341298 1.7632e-05 deg tp 2458950.394330560515 (2020-Apr-10.89433056) 5.7781e-05 TDB period 1203.229559599297 3.29 1.0156e-05 2.781e-08 d yr n .2991947771960393 2.5254e-09 deg/d Q 2.628877809423222 1.4793e-08 au   Orbit Determination Parameters    # obs. used (total)      311      data-arc span      10068 days (27.56 yr)      first obs. used      1993-07-19      last obs. used      2021-02-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .56727      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 20:57:19   Additional Information  Earth MOID = .794263 au   Jupiter MOID = 2.79508 au   T_jup = 3.629  [ 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 17.01   n/a MPCxxxxx   173506 (2000 UW22)          Discovered 2000-Oct-24 by LINEAR at Socorro Reference: 20080122/Numbers.arc Last Updated: 2008-01-28 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-15 18:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin