+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   215334 (2001 UN165) Classification: Main-belt Asteroid          SPK-ID: 2215334 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1608853069707373 6.9874e-08   a 2.814442548013043 1.5253e-08 au q 2.361640094724461 1.9716e-07 au i 10.21482364799294 6.4084e-06 deg node 71.23772365745138 3.6256e-05 deg peri 317.0476940917254 4.1993e-05 deg M 332.2999189103144 1.6868e-05 deg tp 2459133.198357735025 (2020-Oct-10.69835773) 8.0596e-05 TDB period 1724.59454649024 4.72 1.402e-05 3.838e-08 d yr n .2087447166829119 1.6969e-09 deg/d Q 3.267245001301626 1.7707e-08 au   Orbit Determination Parameters    # obs. used (total)      352      data-arc span      7005 days (19.18 yr)      first obs. used      2001-09-12      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55753      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 23:50:54   Additional Information  Earth MOID = 1.37932 au   Jupiter MOID = 2.18939 au   T_jup = 3.278  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.1   n/a MPO446199   215334 (2001 UN165)          Discovered 2001-Oct-23 by NEAT at Palomar Reference: 20090607/Numbers.arc Last Updated: 2009-06-08 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2198-Apr-04 20:26 00:05 Psych 0.0278821340044554 0.0278038867512949 0.0279607373880535 2.72475254516171 2.72475238590413 2523957.351555410 5.31693777776784 6311.9091691514 76.5720925715649 -51.8070374059379 42730.1706423012 T 15 CATAB v2.0f-lin.ifort 2020-Dec-17 23:50:55 2020-Dec-17 23:50 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-18 05:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin