+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   160168 (2001 UF145) Classification: Main-belt Asteroid          SPK-ID: 2160168 [ 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 .1803616802337848 3.992e-08   a 2.632341090772085 1.3596e-08 au q 2.157567628691998 1.0235e-07 au i 1.448012819783602 5.4421e-06 deg node 144.5636283140034 0.00028981 deg peri 312.9349099240039 0.00029065 deg M 134.4704792279034 2.1465e-05 deg tp 2458617.811933960769 (2019-May-14.31193396) 9.2431e-05 TDB period 1559.953567344729 4.27 1.2085e-05 3.309e-08 d yr n .2307760997096683 1.7879e-09 deg/d Q 3.107114552852173 1.6048e-08 au   Orbit Determination Parameters    # obs. used (total)      336      data-arc span      6789 days (18.59 yr)      first obs. used      2001-10-18      last obs. used      2020-05-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .63994      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 12:30:14   Additional Information  Earth MOID = 1.17451 au   Jupiter MOID = 2.06395 au   T_jup = 3.375  [ 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 16.94   n/a E2021B55   160168 (2001 UF145)          Discovered 2001-Oct-23 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-13 19:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin