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JPL Small-Body Database Browser
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(2011 WA)
Classification: Aten [NEO]          SPK-ID: 3587872
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2855877777210492 5.4909e-07  
a .844686330867978 1.523e-09 au
q .6034542387640452 4.6342e-07 au
i 30.38550786719417 7.5155e-05 deg
node 51.52597414918322 3.9266e-06 deg
peri 206.1069880072176 9.5825e-05 deg
M 347.0012302271517 0.00018711 deg
tp 2458610.738618882895
(2019-May-07.23861888)
0.00014739 TDB
period 283.5578183360966
0.78
7.6691e-07
2.1e-09
d
yr
n 1.269582345189642 3.4337e-09 deg/d
Q 1.085918422971911 1.958e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34677  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Nov-24 06:32:36  

Additional Information
 Earth MOID = .050557 au 
 Jupiter MOID = 3.95398 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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