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31443 (1999 CL2)
Classification: Main-belt Asteroid          SPK-ID: 2031443
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1481867870997993 6.1869e-08  
a 2.272293206215299 1.234e-08 au
q 1.935569376637552 1.3978e-07 au
i 5.094104454000125 6.3246e-06 deg
node 278.4390423282613 7.2112e-05 deg
peri 110.4164764420858 7.7596e-05 deg
M 115.19284636603 2.7766e-05 deg
tp 2457200.170134402698
(2015-Jun-26.67013440)
9.488e-05 JED
period 1251.10852072433
3.43
1.0192e-05
2.79e-08
d
yr
n .287744823120202 2.344e-09 deg/d
Q 2.609017035793046 1.4169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      6818 days (18.67 yr)  
   first obs. used      1997-07-02  
   last obs. used      2016-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57566  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 17:06:35  

Additional Information
 Earth MOID = .946426 au 
 Jupiter MOID = 2.83786 au 
 T_jup = 3.592 
[ 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 15.6 mag n/a MPO365625  

31443 (1999 CL2)          Discovered 1999-Feb-05 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

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