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(2011 DW)
Classification: Aten [NEO]          SPK-ID: 3557844
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .27531353309318 6.2961e-07  
a .8397247452908135 2.0051e-09 au
q .608537158839029 5.2745e-07 au
i 25.08412051977101 9.904e-05 deg
node 159.5554680273719 3.9744e-06 deg
peri 152.6463178793201 9.9566e-05 deg
M 130.7563966862741 0.0001972 deg
tp 2459098.414444324560
(2020-Sep-05.91444432)		 0.00015421 TDB
period 281.0631141154436
0.77		 1.0067e-06
2.756e-09		 d
yr
n 1.280851103969957 4.5877e-09 deg/d
Q 1.070912331742598 2.5572e-09 au
   Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      3659 days (10.02 yr)  
   first obs. used      2011-02-23  
   last obs. used      2021-03-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45269  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-02 05:50:32  

Additional Information
 Earth MOID = .0331456 au 
 Jupiter MOID = 4.24004 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 22.87   n/a E2021-DA1  

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