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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2653960519358749 6.6131e-08  
a 2.758740714465729 3.067e-08 AU
q 2.02658182053177 1.8496e-07 AU
i 9.89192520084705 8.6392e-06 deg
node 135.2699240148288 4.6235e-05 deg
peri 119.4085396634105 5.0647e-05 deg
M 2.30566489502766 2.6514e-05 deg
tp 2456789.780897101945
(2014-May-12.28089710)
0.00012312 JED
period 1673.650430130439
4.58
2.791e-05
7.641e-08
d
yr
n .2150986810142561 3.587e-09 deg/d
Q 3.490899608399689 3.8809e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      547  
   data-arc span      8257 days (22.61 yr)  
   first obs. used      1991-06-13  
   last obs. used      2014-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57655  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:48:27  

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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