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33167 (1998 EJ9)
Classification: Main-belt Asteroid          SPK-ID: 2033167
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1047531980569526 9.2636e-08  
a 2.629306894270983 3.7999e-08 AU
q 2.353878588422904 2.4192e-07 AU
i 22.77764716361425 8.6173e-06 deg
node 122.0685793086991 2.2275e-05 deg
peri 317.0576800403903 5.043e-05 deg
M 14.05728131532626 5.1828e-05 deg
tp 2456939.692215218307
(2014-Oct-09.19221522)
0.00022346 JED
period 1557.257198626503
4.26
3.3758e-05
9.242e-08
d
yr
n .2311756852480882 5.0115e-09 deg/d
Q 2.904735200119063 4.198e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      516  
   data-arc span      5756 days (15.76 yr)  
   first obs. used      1998-03-01  
   last obs. used      2013-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55179  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 03:18:51  

Additional Information
 Earth MOID = 1.40303 AU 
 T_jup = 3.283 
[ 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 13.7 mag n/a MPO267822  

33167 (1998 EJ9)          Discovered 1998-Mar-11 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 EJ9 = 1999 LS4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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