+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70676 (1999 UM) Classification: Main-belt Asteroid          SPK-ID: 2070676 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1455193035803326 2.6748e-08   a 2.426449768713952 9.9027e-09 au q 2.073354488198039 6.32e-08 au i 2.480186669513179 5.8244e-06 deg node 5.309717712690838 6.9923e-05 deg peri 91.76414128466708 7.3982e-05 deg M 105.5530556296566 2.3934e-05 deg tp 2458595.715667938788 (2019-Apr-22.21566794) 9.0528e-05 TDB period 1380.560313225965 3.78 8.4514e-06 2.314e-08 d yr n .2607636888813539 1.5963e-09 deg/d Q 2.779545049229866 1.1344e-08 au   Orbit Determination Parameters    # obs. used (total)      759      data-arc span      9954 days (27.25 yr)      first obs. used      1993-01-25      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53984      source      ORB      producer      Otto Matic      solution date      2020-May-20 13:40:21   Additional Information  Earth MOID = 1.09194 au   Jupiter MOID = 2.37443 au   T_jup = 3.494  [ 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 16.0   n/a MPO459319   70676 (1999 UM)          Discovered 1999-Oct-16 by Korlevic, K. at Visnjan Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-30 00:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin