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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458019.5 (2017-Sep-23.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2752534204579284 5.1684e-07  
q .6086402581117729 4.3346e-07 au
tp 2457974.086331800188
(2017-Aug-08.58633180)
0.00013075 TDB
node 159.5684598021121 3.1864e-06 deg
peri 152.660695224733 8.259e-05 deg
i 25.08269654968478 7.6222e-05 deg
  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
 Jupiter MOID = 4.24004 au 
 T_jup = 6.896 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.671244071781827E-13 -2.240278419821065E-13 -6.607526881887544E-11 6.493188672845605E-13 -4.088059566129655E-11 2.448029360188299E-11
q -2.240278419821065E-13 1.878844993399032E-13 5.542574926400686E-11 -5.449203898508297E-13 3.429444965877131E-11 -2.050983025257135E-11
tp -6.607526881887544E-11 5.542574926400686E-11 1.709646033131014E-8 -1.817353941229027E-10 1.075969702485569E-8 -4.651504766836615E-9
node 6.493188672845605E-13 -5.449203898508297E-13 -1.817353941229027E-10 1.015303774240955E-11 -1.24671377537358E-10 5.150712047403086E-11
peri -4.088059566129655E-11 3.429444965877131E-11 1.075969702485569E-8 -1.24671377537358E-10 6.821095016639731E-9 -2.566050838351895E-9
i 2.448029360188299E-11 -2.050983025257135E-11 -4.651504766836615E-9 5.150712047403086E-11 -2.566050838351895E-9 5.809732036840552E-9

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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