+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70682 (1999 UN8) Classification: Main-belt Asteroid          SPK-ID: 2070682 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .148776202216851 3.1336e-08   a 2.61671593444015 1.0541e-08 au q 2.227410875433826 8.2352e-08 au i 13.18079026364202 5.9601e-06 deg node 41.23875472113758 1.4227e-05 deg peri 277.6114325895797 2.5388e-05 deg M 18.96204450854909 2.0107e-05 deg tp 2458919.064089518726 (2020-Mar-10.56408952) 8.639e-05 TDB period 1546.084746296258 4.23 9.3421e-06 2.558e-08 d yr n .2328462271310822 1.407e-09 deg/d Q 3.006020993446474 1.2109e-08 au   Orbit Determination Parameters    # obs. used (total)      1118      data-arc span      7715 days (21.12 yr)      first obs. used      1999-10-03      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52206      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:54:58   Additional Information  Earth MOID = 1.26163 au   Jupiter MOID = 2.39015 au   T_jup = 3.354  [ 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 14.8   n/a MPO474586   70682 (1999 UN8)          Discovered 1999-Oct-29 by CSS at Catalina Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-27 02:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin