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(2011 WA)
Classification: Aten [NEO]          SPK-ID: 3587872
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2855530874155591 5.3599e-07  
a .8446972553249166 1.4913e-09 au
q .6034913461354378 4.524e-07 au
i 30.38399649817903 7.454e-05 deg
node 51.52273868693653 3.8776e-06 deg
peri 206.1162868190236 9.3163e-05 deg
M 28.75148167244332 0.00018305 deg
tp 2459177.853151172807
(2020-Nov-24.35315117)
0.00014415 TDB
period 283.5633192985461
0.78
7.5095e-07
2.056e-09
d
yr
n 1.269557716035121 3.3621e-09 deg/d
Q 1.085903164514395 1.9172e-09 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      2561 days (7.01 yr)  
   first obs. used      2011-11-16  
   last obs. used      2018-11-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34425  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:46:00  

Additional Information
 Earth MOID = .0501793 au 
 Jupiter MOID = 3.95275 au 
 T_jup = 6.826 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.6   n/a MPO227507  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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