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216440 (2009 EU4)
Classification: Main-belt Asteroid          SPK-ID: 2216440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1224698668721817 4.9628e-08  
a 2.454549924859359 2.4368e-08 au
q 2.15394152233071 1.2261e-07 au
i .5573152710414484 6.7212e-06 deg
node 206.7573600832914 0.00048148 deg
peri 309.6777238464087 0.00048235 deg
M 35.79688076193533 3.2941e-05 deg
tp 2459060.831356190022
(2020-Jul-30.33135619)
0.00012717 TDB
period 1404.611538809223
3.85
2.0916e-05
5.726e-08
d
yr
n .2562986206885319 3.8166e-09 deg/d
Q 2.755158327388009 2.7352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      6904 days (18.90 yr)  
   first obs. used      2001-01-21  
   last obs. used      2019-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56476  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:49  

Additional Information
 Earth MOID = 1.16328 au 
 Jupiter MOID = 2.22904 au 
 T_jup = 3.483 
[ 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 17.2   n/a MPO454555  

216440 (2009 EU4)          Discovered 2009-Mar-15 by La Sagra at La Sagra
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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