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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1047531970307958 9.2448e-08  
a 2.629306882018475 3.1622e-08 AU
q 2.353878580151967 2.417e-07 AU
i 22.77764757167649 8.6018e-06 deg
node 122.0685873085547 2.0572e-05 deg
peri 317.0576595503668 4.4313e-05 deg
M 14.0572989087738 4.1815e-05 deg
tp 2456939.692139539121
(2014-Oct-09.19213954)
0.00018051 JED
period 1557.257187741331
4.26
2.8093e-05
7.691e-08
d
yr
n .2311756868639979 4.1705e-09 deg/d
Q 2.904735183884984 3.4935e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      647  
   data-arc span      6225 days (17.04 yr)  
   first obs. used      1998-03-01  
   last obs. used      2015-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50317  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:38:43  

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 13.8 mag n/a MPO324611  

33167 (1998 EJ9)          Discovered 1998-Mar-11 by BAO Schmidt CCD Asteroid Program at Xinglong
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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