+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   187541 (2006 UX149) Classification: Main-belt Asteroid          SPK-ID: 2187541 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2064343821865851 3.7392e-08   a 3.16692614520445 3.0131e-08 au q 2.513163702988626 1.1263e-07 au i 26.96535253501879 6.3858e-06 deg node 182.5190614422934 1.0287e-05 deg peri 295.1145866497754 1.9578e-05 deg M 129.1819361592152 1.8932e-05 deg tp 2458461.822928612304 (2018-Dec-09.32292861) 0.00010386 TDB period 2058.521133882239 5.64 2.9378e-05 8.043e-08 d yr n .1748828292673697 2.4958e-09 deg/d Q 3.820688587420274 3.6351e-08 au   Orbit Determination Parameters    # obs. used (total)      363      data-arc span      7226 days (19.78 yr)      first obs. used      2000-08-31      last obs. used      2020-06-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .565      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:55:50   Additional Information  Earth MOID = 1.6342 au   Jupiter MOID = 1.5804 au   T_jup = 3.004  [ 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 15.36   n/a E2021B55   diameter diameter 5.689 km 2.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.045   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   187541 (2006 UX149)          Discovered 2006-Oct-20 by CSS at Catalina Reference: 20080520/Numbers.arc Last Updated: 2008-05-22 [ show close-approach data ] Alternate Designations  2006 UX149 = 2008 EH82  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 08:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin