+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3827 Zdenekhorsky (1986 VU) Classification: Main-belt Asteroid          SPK-ID: 2003827 [ 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 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1289131553051522 3.8128e-08   a 2.739606611638339 1.2081e-08 au q 2.386435279037184 1.0478e-07 au i 4.097741964204464 4.3999e-06 deg node 333.5044249138928 4.7172e-05 deg peri 34.11852676520673 4.9487e-05 deg M 213.3084872679744 1.7215e-05 deg tp 2459875.390355258984 (2022-Oct-22.89035526) 8.1341e-05 TDB period 1656.268473671491 4.53 1.0956e-05 3e-08 d yr n .2173560661949805 1.4378e-09 deg/d Q 3.092777944239494 1.3639e-08 au   Orbit Determination Parameters    # obs. used (total)      2336      data-arc span      22300 days (61.05 yr)      first obs. used      1959-12-02      last obs. used      2020-12-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46726      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:13:33   Additional Information  Earth MOID = 1.38477 au   Jupiter MOID = 2.37576 au   T_jup = 3.335  [ 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 13.09   n/a E2021B10   diameter diameter 11.798 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.104   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 3827 Zdenekhorský           Discovered 1986 Nov. 3 by A. Mrkos at Klet. Named in memory of Zdeněk Horský (1929-1988), outstanding Czech historian of medieval and renaissance astronomy and authority on Kepler. Horský also studied megalithic localities in Bohemia, explained the cosmological architectural symbolism of the gothic Charles Bridge and the New Town of Prague and dated the origin of the famous astronomical clock on the Old Town Hall in Prague. Name suggested by J. Ticha, M. Tichy and Z. Moravec. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 19960828/MPCPages.arc Last Updated: 2003-09-26 [ show close-approach data ] Alternate Designations  1986 VU = 1959 XB = 1963 SJ = 1981 SU5 = 1982 YV  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-07 21:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin