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332954 (2011 EA4)
Classification: Main-belt Asteroid          SPK-ID: 2332954
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05993394467149496 5.5256e-08  
a 3.124080900763393 4.4512e-08 au
q 2.936842408907765 1.5637e-07 au
i 11.00228730775886 6.6139e-06 deg
node 167.8701185043205 3.0352e-05 deg
peri 136.9813275624147 6.6544e-05 deg
M 120.7926351420868 5.8666e-05 deg
tp 2458323.763206220150
(2018-Jul-24.26320622)
0.00033141 TDB
period 2016.888243841794
5.52
4.3105e-05
1.18e-07
d
yr
n .1784927851601076 3.8148e-09 deg/d
Q 3.31131939261902 4.718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      7229 days (19.79 yr)  
   first obs. used      2000-02-12  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50737  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 22:31:47  

Additional Information
 Earth MOID = 1.93377 au 
 Jupiter MOID = 1.91297 au 
 T_jup = 3.184 
[ 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 15.9   n/a MPO455452  

332954 (2011 EA4)          Discovered 2005-Feb-14 by Spacewatch at Kitt Peak
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

[ show close-approach data ]
Alternate Designations
 2011 EA4 = 2005 EF262 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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