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13642 Ricci (1996 HX)
Classification: Main-belt Asteroid          SPK-ID: 2013642
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1639384482021152 7.7719e-08  
a 3.02119148956132 2.9961e-08 AU
q 2.5259020450412 2.241e-07 AU
i 6.206560483341906 9.5932e-06 deg
node 2.537611847457586 5.7989e-05 deg
peri 316.0654297885675 6.2878e-05 deg
M 85.09459248449004 2.7153e-05 deg
tp 2456347.116962363249
(2013-Feb-23.61696236)
0.00014231 JED
period 1918.075976202362
5.25
2.8532e-05
7.812e-08
d
yr
n .1876880814245802 2.7919e-09 deg/d
Q 3.516480934081439 3.4873e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      751  
   data-arc span      6466 days (17.70 yr)  
   first obs. used      1996-04-19  
   last obs. used      2014-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52181  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:42:24  

Additional Information
 Earth MOID = 1.51661 AU 
 T_jup = 3.217 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO279659  

13642 Ricci           Discovered 1996 Apr. 19 by P. G. Comba at Prescott.
Gregorio Ricci-Curbastro (1853-1925) was a professor of mathematics at the University of Padua. Building on the work of Riemann and Christoffel, he developed tensor analysis, a formalism for the study of those properties of physical systems or abstract spaces that remain invariant under changes of coordinates.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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