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(2011 DW)
Classification: Aten [NEO]          SPK-ID: 3557844
[ 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2752272933522713 0.0001659  
a .8397303054403755 2.446e-05 au
q .608613606328145 0.0001216 au
i 25.06695616418512 0.038036 deg
node 159.5564834529505 0.0019595 deg
peri 152.6585008808057 0.026573 deg
M 234.6486232279987 0.13691 deg
tp 2459098.366661774409
(2020-Sep-05.86666177)		 0.11117 TDB
period 281.065905665079
0.77		 0.012281
3.362e-05		 d
yr
n 1.280838382542846 5.5964e-05 deg/d
Q 1.070847004552606 3.1192e-05 au
   Orbit Determination Parameters
   # obs. used (total)      82  
   data-arc span      11 days  
   first obs. used      2011-02-23  
   last obs. used      2011-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .23997  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:54:23  

Additional Information
 Earth MOID = .0333568 au 
 Jupiter MOID = 4.24062 au 
 T_jup = 6.896 
[ 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 23.0   n/a MPO196815  

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