+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11481 Znannya (1987 WO1) Classification: Main-belt Asteroid          SPK-ID: 2011481 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03665273935098983 3.4211e-08   a 2.573620725294159 9.8941e-09 au q 2.479290475661647 8.8551e-08 au i 6.654483190547035 4.0943e-06 deg node 234.4219222534625 3.4605e-05 deg peri 157.0326956765738 6.9968e-05 deg M 336.9783023508662 6.0092e-05 deg tp 2459096.938420757417 (2020-Sep-04.43842076) 0.00025171 TDB period 1508.048276968671 4.13 8.6964e-06 2.381e-08 d yr n .2387191481188097 1.3766e-09 deg/d Q 2.667950974926672 1.0257e-08 au   Orbit Determination Parameters    # obs. used (total)      1944      data-arc span      11992 days (32.83 yr)      first obs. used      1987-11-22      last obs. used      2020-09-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45638      source      ORB      producer      Otto Matic      solution date      2020-Oct-22 16:26:06   Additional Information  Earth MOID = 1.48683 au   Jupiter MOID = 2.49464 au   T_jup = 3.418  [ 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 13.1   n/a MPO439167   diameter diameter 7.154 km 0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.181   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11481 Znannya           Discovered 1987 Nov. 22 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory. The scientific society Znannya was founded in Kiev in 1948 by Ukrainian astronomer Sergej Konstantinovich Vsekhsvyatskij and other scientists. Znannya propagates knowledge in astronomy, physics, history and other sciences in Ukraine and elsewhere. The name was suggested by K. I. Churyumov. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030910/MPCPages.arc Last Updated: 2003-10-02 [ show close-approach data ] Alternate Designations  1987 WO1 = 1991 UX1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-28 15:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin