+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   5910 Zatopek (1989 WH4) Classification: Main-belt Asteroid          SPK-ID: 2005910 [ 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 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1369059655463054 1.0357e-08   a 2.280505718811993 5.174e-09 au q 1.968290881444166 2.4974e-08 au i 5.007523812389361 7.0805e-07 deg node 133.8607887291607 5.5257e-06 deg peri 291.2623955610183 8.4592e-06 deg M 358.1321040311643 6.2802e-06 deg tp 2459207.026725677867 (2020-Dec-23.52672568) 2.1944e-05 TDB period 1257.897272242934 3.44 4.2809e-06 1.172e-08 d yr n .2861918917735551 9.7397e-10 deg/d Q 2.59272055617982 5.8823e-09 au   Orbit Determination Parameters    # obs. used (total)      2647      data-arc span      24802 days (67.90 yr)      first obs. used      1953-04-07      last obs. used      2021-03-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44696      source      ORB      producer      Otto Matic      solution date      2021-Mar-16 18:17:32   Additional Information  Earth MOID = .987904 au   Jupiter MOID = 2.68379 au   T_jup = 3.588  [ 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 13.94   n/a E2021B10   diameter diameter 4.256 km 0.789 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   geometric albedo albedo 0.298   0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   5910 Zátopek           Discovered 1989 Nov. 29 by A. Mrkos at Klet. Named in honor of the great Czechoslovak long-distance runner, Emil Zátopek (b. 1922). In a twelve-year career he set eighteen world records and won five Olympic medals: silver in 1948 and gold in 1952 at 5000 m, gold in 1948 and 1952 at 10 000 m and gold in the 1952 marathon. The name also honors his wife Dana (b. 1922), who won Olympic gold for the javelin in 1952. Name suggested by G. V. Williams, who made the identifications involving this object. 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  1989 WH4 = 1953 GL = 1977 ER4 = 1982 VJ2 = 1991 GL1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-11 19:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin