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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1484889881536786 8.0035e-08  
a 2.271902597957754 1.8166e-08 AU
q 1.934550080003293 1.8577e-07 AU
i 5.09572980268103 7.0748e-06 deg
node 278.4586249005783 9.4894e-05 deg
peri 110.2702521978278 0.00010094 deg
M 245.0619349079641 3.6394e-05 deg
tp 2457199.841431270711
(2015-Jun-26.34143127)
0.00012975 JED
period 1250.785935384756
3.42
1.5002e-05
4.107e-08
d
yr
n .2878190342692491 3.4521e-09 deg/d
Q 2.609255115912215 2.0864e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      461  
   data-arc span      5758 days (15.76 yr)  
   first obs. used      1997-07-02  
   last obs. used      2013-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .65195  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 22:55:33  

Additional Information
 Earth MOID = .945451 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 15.4 mag n/a MPO259555  

31443 (1999 CL2)          Discovered 1999-Feb-05 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
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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