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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1047532002223286 9.2586e-08  
a 2.629306899861023 3.7123e-08 AU
q 2.353878587733931 2.419e-07 AU
i 22.77764729898828 8.6114e-06 deg
node 122.0685804434167 2.2129e-05 deg
peri 317.05768512 4.9622e-05 deg
M 14.05727305232776 5.0448e-05 deg
tp 2456939.692250767758
(2014-Oct-09.19225077)
0.00021754 JED
period 1557.257203592715
4.26
3.298e-05
9.029e-08
d
yr
n .2311756845108513 4.8959e-09 deg/d
Q 2.904735211988115 4.1012e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      524  
   data-arc span      6146 days (16.83 yr)  
   first obs. used      1998-03-01  
   last obs. used      2014-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54865  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 03:29:48  

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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