+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1452811045434163 2.6157e-08   a 2.426873572267116 9.8595e-09 au q 2.074294699100923 6.1539e-08 au i 2.480027836618288 5.5041e-06 deg node 5.303425870123705 6.7127e-05 deg peri 91.78825812611308 7.104e-05 deg M 157.6956792399064 2.3662e-05 deg tp 2458595.596010508200 (2019-Apr-22.09601051) 8.8699e-05 TDB period 1380.922021875793 3.78 8.4152e-06 2.304e-08 d yr n .2606953863412139 1.5887e-09 deg/d Q 2.779452445433308 1.1292e-08 au   Orbit Determination Parameters    # obs. used (total)      792      data-arc span      10011 days (27.41 yr)      first obs. used      1993-01-25      last obs. used      2020-06-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53402      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 21:59:40   Additional Information  Earth MOID = 1.09267 au   Jupiter MOID = 2.37408 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 16.01   n/a E2021B10   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 ] 2021-Mar-05 12:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin