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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09390782358238871 4.2341e-08  
a 3.036551921766476 1.575e-08 au
q 2.751395939598466 1.3036e-07 au
i 9.895066360272125 5.2618e-06 deg
node 192.4864854188466 1.7887e-05 deg
peri 202.5876600241018 3.1252e-05 deg
M 25.43200796645162 2.3293e-05 deg
tp 2459259.963852614200
(2021-Feb-14.46385261)
0.00012529 TDB
period 1932.722462328877
5.29
1.5037e-05
4.117e-08
d
yr
n .1862657505238543 1.4492e-09 deg/d
Q 3.321707903934485 1.7229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1322  
   data-arc span      10508 days (28.77 yr)  
   first obs. used      1992-05-06  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:30:45  

Additional Information
 Earth MOID = 1.75922 au 
 Jupiter MOID = 2.12863 au 
 T_jup = 3.212 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457614.5 (2016-Aug-14.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09682195982382261 4.3909e-08  
q 2.74154105748491 1.3591e-07 au
tp 2457311.919018811414
(2015-Oct-16.41901881)
0.00011989 TDB
node 192.7402448295123 1.7811e-05 deg
peri 199.8804707421897 2.9934e-05 deg
i 9.919140578727378 5.2744e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1322  
   data-arc span      10508 days (28.77 yr)  
   first obs. used      1992-05-06  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:30:45  

Additional Information
 Jupiter MOID = 2.12863 au 
 T_jup = 3.212 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.927989694402367E-15 -5.93624378609542E-15 -2.447836446645937E-12 -1.446282317218039E-15 -4.852222994755818E-13 -3.986730561356753E-16
q -5.93624378609542E-15 1.847130114292855E-14 6.97584843576681E-12 3.158549324676372E-15 1.38815716128906E-12 1.91170946062785E-15
tp -2.447836446645937E-12 6.97584843576681E-12 1.437475673597071E-8 -4.004851319353738E-12 2.892458368212033E-9 1.222686097697555E-12
node -1.446282317218039E-15 3.158549324676372E-15 -4.004851319353738E-12 3.172264446697789E-10 -3.1269004457569E-10 -1.8638199030926E-11
peri -4.852222994755818E-13 1.38815716128906E-12 2.892458368212033E-9 -3.1269004457569E-10 8.960451873235365E-10 1.848570063161126E-11
i -3.986730561356753E-16 1.91170946062785E-15 1.222686097697555E-12 -1.8638199030926E-11 1.848570063161126E-11 2.781890282082401E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.43   n/a E2021B10  

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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