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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2753134540083654 5.1695e-07  
a .8397247435478492 1.4556e-09 au
q .608537223985402 4.3317e-07 au
i 25.0840320970646 7.6224e-05 deg
node 159.5554682210844 3.203e-06 deg
peri 152.6462701489127 8.2322e-05 deg
M 130.7564677959002 0.00016488 deg
tp 2459098.414389124918
(2020-Sep-05.91438913)
0.00012893 TDB
period 281.0631132403658
0.77
7.3081e-07
2.001e-09
d
yr
n 1.280851107957832 3.3304e-09 deg/d
Q 1.070912263110296 1.8564e-09 au
  Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      3664 days (10.03 yr)  
   first obs. used      2011-02-23  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55544  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 04:50:55  

Additional Information
 Earth MOID = .0331454 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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