+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11188 (1998 KD50) Classification: Outer Main-belt Asteroid          SPK-ID: 2011188 [ 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 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0838044886365012 1.4064e-08   a 3.380801599635322 1.8026e-08 au q 3.097475250396418 5.2357e-08 au i 11.4948930668272 1.1415e-06 deg node 183.066678343666 1.7054e-06 deg peri 147.1144251791228 1.3533e-05 deg M 144.979346014783 1.5345e-05 deg tp 2458286.109742280229 (2018-Jun-16.60974228) 9.5952e-05 TDB period 2270.533712750725 6.22 1.8159e-05 4.972e-08 d yr n .1585530300555917 1.2681e-09 deg/d Q 3.664127948874226 1.9537e-08 au   Orbit Determination Parameters    # obs. used (total)      2667      data-arc span      25779 days (70.58 yr)      first obs. used      1950-08-14      last obs. used      2021-03-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43509      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 22:34:58   Additional Information  Earth MOID = 2.09344 au   Jupiter MOID = 1.76103 au   T_jup = 3.113  [ 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 12.38   n/a E2021B10   diameter diameter 15.908 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.068   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11188 (1998 KD50)          Discovered 1998-May-23 by LINEAR at Socorro Reference: 19990728/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 KD50 = 1975 UK = 1991 FG5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 19:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin