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JPL Small-Body Database Browser
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212138 (2005 EJ251)
Classification: Main-belt Asteroid          SPK-ID: 2212138
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07267329550234258 4.8537e-08  
a 2.452940837413411 2.1235e-08 au
q 2.274677543086302 1.176e-07 au
i 7.016557992940958 5.7819e-06 deg
node 99.96861380079491 4.8902e-05 deg
peri 66.2457666719374 6.6788e-05 deg
M 246.7344401256073 4.6537e-05 deg
tp 2459041.993600191280
(2020-Jul-11.49360019)
0.00018322 TDB
period 1403.230569337378
3.84
1.8221e-05
4.989e-08
d
yr
n .2565508533426522 3.3314e-09 deg/d
Q 2.631204131740519 2.2778e-08 au
  Orbit Determination Parameters
   # obs. used (total)      241  
   data-arc span      6434 days (17.62 yr)  
   first obs. used      2001-02-02  
   last obs. used      2018-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63171  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 12:12:40  

Additional Information
 Earth MOID = 1.29357 au 
 Jupiter MOID = 2.36306 au 
 T_jup = 3.481 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO418135  

212138 (2005 EJ251)          Discovered 2005-Mar-10 by LONEOS at Anderson Mesa
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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