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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1639384421223846 8.4488e-08  
a 3.021191487147079 3.3324e-08 AU
q 2.525902061390776 2.4356e-07 AU
i 6.206568361114203 1.038e-05 deg
node 2.537610749662138 6.0475e-05 deg
peri 316.0654450867301 6.582e-05 deg
M 85.09458315770007 2.9571e-05 deg
tp 2456347.117012599731
(2013-Feb-23.61701260)
0.00015485 JED
period 1918.075973903253
5.25
3.1734e-05
8.688e-08
d
yr
n .1876880816495532 3.1053e-09 deg/d
Q 3.516480912903381 3.8787e-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      .54545  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-22 03:24:08  

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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