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JPL Small-Body Database Browser
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8524 Paoloruffini (1992 RJ3)
Classification: Main-belt Asteroid          SPK-ID: 2008524
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1087139623340391 3.0709e-08  
a 2.368408041553248 9.401e-09 au
q 2.110929018932193 7.4041e-08 au
i 7.190637579407167 4.3879e-06 deg
node 344.0313952480486 2.7532e-05 deg
peri 272.2030239600796 3.8095e-05 deg
M 292.718846169804 2.9889e-05 deg
tp 2459249.313618553308
(2021-Feb-03.81361855)
0.00011128 TDB
period 1331.322332926314
3.64
7.9267e-06
2.17e-08
d
yr
n .2704078427113151 1.61e-09 deg/d
Q 2.625887064174303 1.0423e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1386  
   data-arc span      10560 days (28.91 yr)  
   first obs. used      1991-03-09  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53669  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:56:43  

Additional Information
 Earth MOID = 1.11116 au 
 Jupiter MOID = 2.45214 au 
 T_jup = 3.528 
[ 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 14.4   n/a MPO309218  

8524 Paoloruffini           Discovered 1992 Sept. 2 by E. W. Elst at the European Southern Observatory.
Named in memory of the famous Italian mathematician and physician Paolo Ruffini (1765-1822). In 1799 he published a book on the theory of equations, with the claim that the solution by radicals of a general equation of degree greater of four is impossible. Initially the mathematical community showed no interest in his work. However, in 1821 his work was acknowledged by Cauchy, who was influenced by his investigations and had generalized some of Ruffini's results. Due to political problems he had to leave his chair in mathematics at Modena and begin a career in medicine, tending to patients from the poorest to the richest.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1992 RJ3 = 1991 EK8 = 1991 GS11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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