+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   437089 (2012 UA78) Classification: Main-belt Asteroid          SPK-ID: 2437089 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06900770791269502 9.6314e-08   a 2.724821389390994 5.0383e-08 au q 2.536787710837636 2.872e-07 au i 5.525822261735827 1.0254e-05 deg node 25.49010433364396 7.4906e-05 deg peri 312.8910223410292 0.00010467 deg M 300.3986858239487 6.5239e-05 deg tp 2459272.493685386728 (2021-Feb-26.99368539) 0.00029582 TDB period 1642.878652809419 4.50 4.5567e-05 1.248e-07 d yr n .2191275657422287 6.0777e-09 deg/d Q 2.912855067944351 5.386e-08 au   Orbit Determination Parameters    # obs. used (total)      83      data-arc span      6569 days (17.98 yr)      first obs. used      2001-04-16      last obs. used      2019-04-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .67194      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 15:03:42   Additional Information  Earth MOID = 1.53212 au   Jupiter MOID = 2.35518 au   T_jup = 3.347  [ 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 MPO472423   437089 (2012 UA78)          Discovered 2012-Oct-06 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2015-06-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-21 11:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin