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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1484122539294996 7.3694e-08  
a 2.271962539632241 1.719e-08 AU
q 1.93477545828203 1.7213e-07 AU
i 5.095492170968013 6.4845e-06 deg
node 278.4577154409011 8.9476e-05 deg
peri 110.2585411229886 9.4921e-05 deg
M 302.628596046102 3.3975e-05 deg
tp 2457199.839403099278
(2015-Jun-26.33940310)
0.00011962 JED
period 1250.835436647257
3.42
1.4196e-05
3.887e-08
d
yr
n .2878076439575017 3.2664e-09 deg/d
Q 2.609149620982453 1.9741e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      457  
   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      .61857  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 02:51:17  

Additional Information
 Earth MOID = .946779 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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