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134971 (2001 EE21)
Classification: Main-belt Asteroid          SPK-ID: 2134971
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0631085975719944 5.7795e-08  
a 2.475936105091629 1.6731e-08 au
q 2.31968324982143 1.4111e-07 au
i 14.26330323503828 6.7033e-06 deg
node 186.4481091316404 1.5257e-05 deg
peri 41.2395462558383 4.9294e-05 deg
M 280.0944940944553 4.4771e-05 deg
tp 2459316.350654374777
(2021-Apr-11.85065437)
0.00017742 TDB
period 1423.008768749057
3.90
1.4423e-05
3.949e-08
d
yr
n .2529850889931409 2.5642e-09 deg/d
Q 2.632188960361828 1.7786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      6461 days (17.69 yr)  
   first obs. used      2001-03-03  
   last obs. used      2018-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61909  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:13:03  

Additional Information
 Earth MOID = 1.32925 au 
 Jupiter MOID = 2.34762 au 
 T_jup = 3.436 
[ 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 16.0   n/a MPO449760  

134971 (2001 EE21)          Discovered 2001-Mar-15 by LONEOS at Anderson Mesa
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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