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359912 (2011 WS108)
Classification: Main-belt Asteroid          SPK-ID: 2359912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05340348864870505 6.8077e-08  
a 2.688187277956582 3.4001e-08 au
q 2.544628699172634 1.7069e-07 au
i 6.517773529192465 6.0369e-06 deg
node 76.37923503186457 6.9796e-05 deg
peri 171.954188749891 0.00011024 deg
M 146.8592346671124 8.529e-05 deg
tp 2458343.770584938346
(2018-Aug-13.27058494)
0.00038502 TDB
period 1609.858514911216
4.41
3.0543e-05
8.362e-08
d
yr
n .2236221361476937 4.2426e-09 deg/d
Q 2.83174585674053 3.5817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      8564 days (23.45 yr)  
   first obs. used      1996-05-18  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65065  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 11:18:30  

Additional Information
 Earth MOID = 1.53067 au 
 Jupiter MOID = 2.17429 au 
 T_jup = 3.362 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457587.5 (2016-Jul-18.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05393184403527896 6.7288e-08  
q 2.543111574524131 1.6881e-07 au
tp 2458350.216589617588
(2018-Aug-19.71658962)
0.00038452 TDB
node 76.4002323884129 6.9857e-05 deg
peri 173.4659220370578 0.00011031 deg
i 6.515665560228192 6.0359e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      8564 days (23.45 yr)  
   first obs. used      1996-05-18  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65065  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 11:18:30  

Additional Information
 Jupiter MOID = 2.17429 au 
 T_jup = 3.362 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.527667637514056E-15 -1.11908611002607E-14 -5.676449149976574E-12 2.567837819072166E-15 -1.522310951896712E-12 7.956462385955338E-15
q -1.11908611002607E-14 2.849679139039989E-14 1.121328090646359E-11 2.05336060821485E-15 3.060380223602502E-12 -1.756772410551493E-14
tp -5.676449149976574E-12 1.121328090646359E-11 1.47853038863261E-7 -2.003346097578329E-10 3.286885133900973E-8 -6.060683789004956E-11
node 2.567837819072166E-15 2.05336060821485E-15 -2.003346097578329E-10 4.880000420601462E-9 -4.892267373159665E-9 -1.184429361854982E-10
peri -1.522310951896712E-12 3.060380223602502E-12 3.286885133900973E-8 -4.892267373159665E-9 1.216902527492278E-8 1.037907579724392E-10
i 7.956462385955338E-15 -1.756772410551493E-14 -6.060683789004956E-11 -1.184429361854982E-10 1.037907579724392E-10 3.643250901339374E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO450335  

359912 (2011 WS108)          Discovered 2004-Feb-16 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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