+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11011 KIAM (1981 UK11) Classification: Main-belt Asteroid          SPK-ID: 2011011 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2056290467799566 3.3424e-08   a 2.397551444944001 7.4017e-09 au q 1.904545226714259 7.9507e-08 au i 3.006199376417985 3.6981e-06 deg node 141.7773587529091 6.0019e-05 deg peri 216.4859623083914 6.0552e-05 deg M 165.3439281964937 7.3414e-06 deg tp 2458377.717960418913 (2018-Sep-16.21796042) 2.7587e-05 TDB period 1355.970773736254 3.71 6.2792e-06 1.719e-08 d yr n .2654924478999298 1.2294e-09 deg/d Q 2.890557663173744 8.9237e-09 au   Orbit Determination Parameters    # obs. used (total)      1965      data-arc span      15584 days (42.67 yr)      first obs. used      1977-08-18      last obs. used      2020-04-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48189      source      ORB      producer      Otto Matic      solution date      2020-May-20 03:28:17   Additional Information  Earth MOID = .901621 au   Jupiter MOID = 2.55738 au   T_jup = 3.497  [ 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 MPO452326   diameter diameter 4.624 km 0.407 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.173   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11011 KIAM           Discovered 1981 Oct. 22 by N. S. Chernykh at the Crimean Astrophysical Observatory. KIAM is the English abbreviation for the Keldysh Institute of Applied Mathematics of the Russian Academy of Sciences, which played an exceptionally important part in theoretical research and computation for the astrodynamics and cosmonautics of the Soviet space program. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030501/MPCPages.arc Last Updated: 2003-10-02 [ show close-approach data ] Alternate Designations  1981 UK11 = 1977 QO4 = 1992 SV13 = 1992 UX6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-29 05:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin