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268966 (2007 EJ18)
Classification: Main-belt Asteroid          SPK-ID: 2268966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05647908191984337 5.6981e-08  
a 2.708256476416234 2.5972e-08 au
q 2.555296637024775 1.5683e-07 au
i 5.37805805685434 7.6775e-06 deg
node 174.748677265089 4.7827e-05 deg
peri 332.290355848663 7.0588e-05 deg
M 25.76289938851124 5.1335e-05 deg
tp 2458884.000154572260
(2020-Feb-04.50015457)
0.00023218 TDB
period 1627.92020112026
4.46
2.3417e-05
6.411e-08
d
yr
n .2211410606934323 3.1811e-09 deg/d
Q 2.861216315807693 2.7439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      6650 days (18.21 yr)  
   first obs. used      2002-02-06  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48219  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:38:11  

Additional Information
 Earth MOID = 1.56764 au 
 Jupiter MOID = 2.12559 au 
 T_jup = 3.356 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO418427  

268966 (2007 EJ18)          Discovered 2007-Mar-09 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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