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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05727389264146701 5.3923e-08  
a 2.629048531588581 2.5431e-08 au
q 2.47847268824117 1.5416e-07 au
i 4.043007781742443 6.0854e-06 deg
node 64.64689903119715 8.5171e-05 deg
peri 255.2619839218076 0.00010818 deg
M 250.5783409613931 6.8831e-05 deg
tp 2459073.757086803568
(2020-Aug-12.25708680)
0.00029793 TDB
period 1557.027673919405
4.26
2.2592e-05
6.185e-08
d
yr
n .2312097633395271 3.3548e-09 deg/d
Q 2.779624374935992 2.6887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      8132 days (22.26 yr)  
   first obs. used      1997-02-02  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64189  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:04:02  

Additional Information
 Earth MOID = 1.46827 au 
 Jupiter MOID = 2.37928 au 
 T_jup = 3.395 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456922.5 (2014-Sep-22.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05648178511227999 5.4156e-08  
q 2.480601651487522 1.5462e-07 au
tp 2457519.722732386484
(2016-May-11.22273239)
0.00030114 TDB
node 64.65659551846331 8.5169e-05 deg
peri 255.9670885675014 0.00010865 deg
i 4.043060091751179 6.0852e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      8132 days (22.26 yr)  
   first obs. used      1997-02-02  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64189  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:04:02  

Additional Information
 Jupiter MOID = 2.37928 au 
 T_jup = 3.395 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.932910048443976E-15 -8.292629141176331E-15 4.539415754460714E-12 -2.288567087140054E-14 1.118984197387901E-12 2.558361382872191E-15
q -8.292629141176331E-15 2.390882484051369E-14 -1.216978499168587E-11 6.444840869629206E-14 -3.051253237894877E-12 -6.68205396435906E-15
tp 4.539415754460714E-12 -1.216978499168587E-11 9.06867330492338E-8 1.264094471931407E-11 2.034474911485875E-8 -2.28308586727854E-13
node -2.288567087140054E-14 6.444840869629206E-14 1.264094471931407E-11 7.253829888887624E-9 -7.233118518578617E-9 -1.790290292597592E-10
peri 1.118984197387901E-12 -3.051253237894877E-12 2.034474911485875E-8 -7.233118518578617E-9 1.180378549318831E-8 1.785603906953616E-10
i 2.558361382872191E-15 -6.68205396435906E-15 -2.28308586727854E-13 -1.790290292597592E-10 1.785603906953616E-10 3.702956439097724E-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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