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442537 (2011 WE151)
Classification: Main-belt Asteroid          SPK-ID: 2442537
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1681591020322022 7.3188e-08  
a 3.112940235681336 6.8685e-08 au
q 2.589471000969251 2.2402e-07 au
i 11.72618553263801 1.2809e-05 deg
node 336.1418600327365 3.8479e-05 deg
peri 81.22773713392257 5.4906e-05 deg
M 228.0460093404751 3.6423e-05 deg
tp 2459735.817038615308
(2022-Jun-05.31703862)
0.00021063 TDB
period 2006.109345980608
5.49
6.6395e-05
1.818e-07
d
yr
n .1794518333316612 5.9392e-09 deg/d
Q 3.636409470393422 8.0235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      4072 days (11.15 yr)  
   first obs. used      2007-01-27  
   last obs. used      2018-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60684  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:14:08  

Additional Information
 Earth MOID = 1.6332 au 
 Jupiter MOID = 1.88601 au 
 T_jup = 3.165 
[ 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 16.2   n/a MPO437721  

442537 (2011 WE151)          Discovered 2007-Jan-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 WE151 = 2007 EC193 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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