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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2392379679001258 3.3058e-08  
a 2.354100186623731 1.1214e-08 au
q 1.790910041742563 7.6319e-08 au
i 6.653391053545927 4.7383e-06 deg
node 323.1652725565499 3.67e-05 deg
peri 129.8246076925815 3.8857e-05 deg
M 205.4192677043642 1.4299e-05 deg
tp 2459566.985371038856
(2021-Dec-18.48537104)		 5.5164e-05 TDB
period 1319.276539484643
3.61		 9.4268e-06
2.581e-08		 d
yr
n .272876830009142 1.9498e-09 deg/d
Q 2.917290331504899 1.3897e-08 au
   Orbit Determination Parameters
   # obs. used (total)      689  
   data-arc span      7647 days (20.94 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:27  

Additional Information
 Earth MOID = .816017 au 
 Jupiter MOID = 2.29235 au 
 T_jup = 3.508 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457276.5 (2015-Sep-11.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2406239753644704 3.3087e-08  
q 1.785565354628887 7.6552e-08 au
tp 2456930.188097268809
(2014-Sep-29.68809727)		 4.336e-05 TDB
node 323.286969854919 3.6786e-05 deg
peri 129.4720824286156 3.8888e-05 deg
i 6.648453596293202 4.7358e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      689  
   data-arc span      7647 days (20.94 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:27  

Additional Information
 Jupiter MOID = 2.29235 au 
 T_jup = 3.508 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.094766407281039E-15 -2.518215658056403E-15 2.559438784487418E-13 -4.907225367312965E-16 6.496187244084394E-14 -5.762137114205087E-16
q -2.518215658056403E-15 5.860253650571571E-15 -4.314812482363792E-13 -4.20309936631832E-17 -1.028395295372907E-13 1.536832696036725E-15
tp 2.559438784487418E-13 -4.314812482363792E-13 1.880077181863754E-9 -1.321245849207423E-11 5.632708464077996E-10 -3.623112152094944E-13
node -4.907225367312965E-16 -4.20309936631832E-17 -1.321245849207423E-11 1.353234190649156E-9 -1.347118188152325E-9 3.945787500439816E-11
peri 6.496187244084394E-14 -1.028395295372907E-13 5.632708464077996E-10 -1.347118188152325E-9 1.512311021743196E-9 -3.929198250717236E-11
i -5.762137114205087E-16 1.536832696036725E-15 -3.623112152094944E-13 3.945787500439816E-11 -3.929198250717236E-11 2.242735882828982E-11

[ 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

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