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295866 (2008 WS11)
Classification: Main-belt Asteroid          SPK-ID: 2295866
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 .05699832529240741 5.3006e-08  
a 2.63074243910189 2.2252e-08 au
q 2.480794525797419 1.5107e-07 au
i 4.040103625902354 4.6851e-06 deg
node 64.62976663257905 7.4175e-05 deg
peri 254.2512315985011 9.0511e-05 deg
M 343.9683630538602 4.9769e-05 deg
tp 2459069.905085195828
(2020-Aug-08.40508520)
0.00021507 TDB
period 1558.532715931687
4.27
1.9774e-05
5.414e-08
d
yr
n .2309864889713226 2.9307e-09 deg/d
Q 2.780690352406361 2.3521e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      8578 days (23.49 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61244  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 19:26:38  

Additional Information
 Earth MOID = 1.47121 au 
 Jupiter MOID = 2.37484 au 
 T_jup = 3.394 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457477.5 (2016-Mar-30.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05680178721567444 5.3553e-08  
q 2.480174156296466 1.526e-07 au
tp 2457519.001588239522
(2016-May-10.50158824)
0.00022306 TDB
node 64.65171270841644 7.4103e-05 deg
peri 255.817937539997 9.0228e-05 deg
i 4.042782832795653 4.6884e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      8578 days (23.49 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61244  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 19:26:38  

Additional Information
 Jupiter MOID = 2.37484 au 
 T_jup = 3.394 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.867966821789356E-15 -8.115302897946232E-15 5.309860366165869E-12 5.358675374906278E-15 1.26440245118276E-12 -8.81591118527832E-17
q -8.115302897946232E-15 2.328811326247172E-14 -1.637746372285687E-11 -1.378341165204489E-14 -3.891770828812246E-12 5.091124717001146E-16
tp 5.309860366165869E-12 -1.637746372285687E-11 4.975467298132625E-8 4.151499613528961E-11 1.151357532464556E-8 -3.505043824192219E-12
node 5.358675374906278E-15 -1.378341165204489E-14 4.151499613528961E-11 5.491182832722039E-9 -5.467887571306883E-9 -5.146225363952295E-11
peri 1.26440245118276E-12 -3.891770828812246E-12 1.151357532464556E-8 -5.467887571306883E-9 8.141122713940719E-9 5.055662947098642E-11
i -8.81591118527832E-17 5.091124717001146E-16 -3.505043824192219E-12 -5.146225363952295E-11 5.055662947098642E-11 2.198099762124465E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO433906  

295866 (2008 WS11)          Discovered 2008-Nov-18 by CSS at Catalina
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 WS11 = 2002 GR61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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