Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.

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 ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

[ revert to old Java-based viewer ]

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
5.7798e-05 TDB
period 1319.276540388757
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.arcLast Updated: 2008-12-12

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
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 ]
FirstGov 2020-Apr-05 04:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin