+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100269 (1994 UM6) Classification: Main-belt Asteroid          SPK-ID: 2100269 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2099680131894266 4.5776e-08   a 3.126972039888121 1.7814e-08 au q 2.470407933373924 1.4632e-07 au i 11.13433016546459 5.8295e-06 deg node 16.48143835294689 1.957e-05 deg peri 232.4377578790907 2.3301e-05 deg M 346.5968368679666 1.0813e-05 deg tp 2459075.695045517078 (2020-Aug-14.19504552) 6.0564e-05 TDB period 2019.688645096802 5.53 1.7259e-05 4.725e-08 d yr n .1782452958152594 1.5232e-09 deg/d Q 3.783536146402318 2.1555e-08 au   Orbit Determination Parameters    # obs. used (total)      790      data-arc span      10294 days (28.18 yr)      first obs. used      1992-04-09      last obs. used      2020-06-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56063      source      ORB      producer      Otto Matic      solution date      2020-Jun-24 01:12:16   Additional Information  Earth MOID = 1.47626 au   Jupiter MOID = 1.37544 au   T_jup = 3.151  [ 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 14.4   n/a MPO426629   diameter diameter 7.229 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.064   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100269 (1994 UM6)          Discovered 1994-Oct-28 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1994 UM6 = 2003 EG28  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-20 14:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin