+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1804785254647459 4.0262e-08   a 2.632367963180695 1.3703e-08 au q 2.157282074705207 1.0339e-07 au i 1.447993117386607 5.4774e-06 deg node 144.5652863385681 0.00029019 deg peri 312.9518340569106 0.00029103 deg M 88.28134281582773 2.1389e-05 deg tp 2458617.953043151990 (2019-May-14.45304315) 9.2359e-05 TDB period 1559.977454722094 4.27 1.2181e-05 3.335e-08 d yr n .2307725659177126 1.8019e-09 deg/d Q 3.107453851656183 1.6176e-08 au   Orbit Determination Parameters    # obs. used (total)      333      data-arc span      6765 days (18.52 yr)      first obs. used      2001-10-18      last obs. used      2020-04-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .63806      source      ORB      producer      Otto Matic      solution date      2020-May-21 01:30:51   Additional Information  Earth MOID = 1.17444 au   Jupiter MOID = 2.06365 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 16.9   n/a MPO459732   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 ] 2020-Jul-14 02:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin