+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   74764 Rudolfpesek (1999 RP213) Classification: Main-belt Asteroid          SPK-ID: 2074764 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2392379725024997 3.3781e-08   a 2.354100187699257 1.134e-08 au q 1.790910031726333 7.7795e-08 au i 6.653392472407086 5.1068e-06 deg node 323.1652867100669 4.2143e-05 deg peri 129.8245880776786 4.4669e-05 deg M 205.4192715699934 1.5106e-05 deg tp 2459566.985357260869 (2021-Dec-18.48535726) 5.7798e-05 TDB period 1319.276540388757 3.61 9.5323e-06 2.61e-08 d yr n .2728768298221367 1.9717e-09 deg/d Q 2.917290343672181 1.4052e-08 au   Orbit Determination Parameters    # obs. used (total)      660      data-arc span      7234 days (19.81 yr)      first obs. used      1999-09-08      last obs. used      2019-06-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50197      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 17:21:36   Additional Information  Earth MOID = .816017 au   Jupiter MOID = 2.29235 au   T_jup = 3.508  [ 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 15.8   n/a MPO436306   74764 Rudolfpešek           Discovered 1999 Sept. 15 by P. Kušnirák and P. Pravec at Ondřejov. Rudolf Pešek (1905-1989) founded the Czech school of aerodynamic engineering. An enthusiastic supporter and popularizer of spaceflight, he became an active member of the International Astronautical Federation and the International Academy of Astronautics. He invented the famous abbreviation CETI, now SETI. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20081212/MPCPages.arc Last Updated: 2008-12-12 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2182-Apr-09 17:36 00:02 Eunom 0.0109731483515414 0.0109670636824365 0.010979274772831 4.26329795455518 4.26329765448906 2518118.233547369 2.23680567889 1138.2008398129 71.1105373451752 74.907316078111 22269.5632317179 T 17 CATAB v2.0f-lin.ifort 2020-Feb-23 17:21:50 2020-Feb-23 17:21 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-25 18:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin