+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120391 (2005 QU80) Classification: Main-belt Asteroid          SPK-ID: 2120391 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2266371332340047 7.5234e-08   a 3.147677926888233 3.7242e-08 au q 2.434297225194328 2.4457e-07 au i 13.19790696074779 9.2896e-06 deg node 27.89305368771689 2.5589e-05 deg peri 332.5739864214623 2.9749e-05 deg M 219.4673539042363 2.0605e-05 deg tp 2459796.766752826738 (2022-Aug-05.26675283) 0.00012765 TDB period 2039.78249169441 5.58 3.62e-05 9.911e-08 d yr n .1764894058390288 3.1322e-09 deg/d Q 3.861058628582137 4.5682e-08 au   Orbit Determination Parameters    # obs. used (total)      317      data-arc span      21736 days (59.51 yr)      first obs. used      1960-10-22      last obs. used      2020-04-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55739      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:37:19   Additional Information  Earth MOID = 1.44071 au   Jupiter MOID = 1.63051 au   T_jup = 3.128  [ 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 15.0   n/a MPO432705   diameter diameter 5.916 km 0.613 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.050   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120391 (2005 QU80)          Discovered 2005-Aug-28 by LONEOS at Anderson Mesa Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ show close-approach data ] Alternate Designations  2005 QU80 = 5586 P-L  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-26 20:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin