+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1873580939931049 6.1106e-08   a 2.213587254936871 1.4855e-08 au q 1.79885376596447 1.4112e-07 au i 4.031486173845762 5.2219e-06 deg node 118.7577379130513 8.3625e-05 deg peri 231.4334994184014 8.4713e-05 deg M 15.02333427457667 1.8316e-05 deg tp 2458950.299594514720 (2020-Apr-10.79959451) 6.0901e-05 TDB period 1202.938418622781 3.29 1.2109e-05 3.315e-08 d yr n .299267189763676 3.0125e-09 deg/d Q 2.628320743909273 1.7638e-08 au   Orbit Determination Parameters    # obs. used (total)      269      data-arc span      9472 days (25.93 yr)      first obs. used      1993-07-19      last obs. used      2019-06-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58633      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 17:05:05   Additional Information  Earth MOID = .795856 au   Jupiter MOID = 2.79499 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 16.9   n/a MPO436861   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 ] 2020-Aug-08 13:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin