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31431 Cabibbo (1999 BP9)
Classification: Main-belt Asteroid          SPK-ID: 2031431
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2653960983333739 6.1102e-08  
a 2.75874074135151 2.4027e-08 AU
q 2.0265817122835 1.6849e-07 AU
i 9.891925416540353 7.6683e-06 deg
node 135.2699438643672 4.2747e-05 deg
peri 119.4085265040287 4.5934e-05 deg
M 2.305647132113976 2.0598e-05 deg
tp 2456789.780979525550
(2014-May-12.28097953)
9.565e-05 JED
period 1673.65045459671
4.58
2.1865e-05
5.986e-08
d
yr
n .2150986778698346 2.8101e-09 deg/d
Q 3.49089977041952 3.0404e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      560  
   data-arc span      8407 days (23.02 yr)  
   first obs. used      1991-06-13  
   last obs. used      2014-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57472  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:04:49  

Additional Information
 Earth MOID = 1.03303 AU 
 T_jup = 3.269 
[ 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 14.2 mag n/a MPO263610  

31431 Cabibbo           Discovered 1999 Jan. 21 at the Osservatorio San Vittore.
Nicola Cabibbo (1935-2010) was an Italian physicist known for his work on the weak interaction and the so-called Cabibbo angle.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110218/MPCPages.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 1999 BP9 = 1991 LN 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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