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JPL Small-Body Database Browser
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410776 (2009 EP21)
Classification: Main-belt Asteroid          SPK-ID: 2410776
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07936747441120189 8.6808e-08  
a 2.378634771191743 3.77e-08 au
q 2.189848536855588 2.2426e-07 au
i 2.908739623534121 8.8362e-06 deg
node 185.8467608834214 0.0001431 deg
peri 5.878363822967001 0.00015222 deg
M 261.2595227841911 5.8009e-05 deg
tp 2458968.021535812221
(2020-Apr-28.52153581)
0.00022122 TDB
period 1339.954561929304
3.67
3.1856e-05
8.722e-08
d
yr
n .2686658266095694 6.3873e-09 deg/d
Q 2.567421005527899 4.0692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      74  
   data-arc span      5995 days (16.41 yr)  
   first obs. used      2002-05-18  
   last obs. used      2018-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55022  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 05:16:17  

Additional Information
 Earth MOID = 1.18977 au 
 Jupiter MOID = 2.38928 au 
 T_jup = 3.534 
[ 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 17.7   n/a MPO460559  

410776 (2009 EP21)          Discovered 2009-Mar-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-10-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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