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JPL Small-Body Database Browser
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40440 Dobrovsky (1999 RU34)
Classification: Main-belt Asteroid          SPK-ID: 2040440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09384509456356875 5.1518e-08  
a 3.036660898222898 2.413e-08 au
q 2.751685169071679 1.4942e-07 au
i 9.894652796207943 5.4661e-06 deg
node 192.4899904498876 2.619e-05 deg
peri 202.3816842977549 3.7689e-05 deg
M 311.8397489204935 2.6633e-05 deg
tp 2459259.070582869649
(2021-Feb-13.57058287)
0.00014347 TDB
period 1932.826506228164
5.29
2.3038e-05
6.307e-08
d
yr
n .1862557238531078 2.22e-09 deg/d
Q 3.321636627374117 2.6394e-08 au
  Orbit Determination Parameters
   # obs. used (total)      917  
   data-arc span      9484 days (25.97 yr)  
   first obs. used      1992-05-06  
   last obs. used      2018-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57423  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:02:04  

Additional Information
 Earth MOID = 1.7601 au 
 Jupiter MOID = 2.12667 au 
 T_jup = 3.212 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO347810  

40440 Dobrovský           Discovered 1999 Sept. 11 by P. Pravec and P. Kušnirák at Ondřejov.
Josef Dobrovský (1753-1829) was probably the most important Czech linguist. He did research in the Czech and Slavic languages and Czech literature. He codified the rules of the written Czech language.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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