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266667 (2008 WS117)
Classification: Main-belt Asteroid          SPK-ID: 2266667
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 .06526388214018296 9.3359e-08  
a 2.140376684752458 1.7903e-08 au
q 2.000687393063178 2.0762e-07 au
i 5.999687682400392 6.5023e-06 deg
node 69.15520158678986 7.7691e-05 deg
peri 284.836913950072 8.9809e-05 deg
M 182.529459220827 4.2587e-05 deg
tp 2459164.342120982409
(2020-Nov-10.84212098)
0.00013324 TDB
period 1143.75694502582
3.13
1.435e-05
3.929e-08
d
yr
n .314752187136991 3.9491e-09 deg/d
Q 2.280065976441738 1.9071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      5962 days (16.32 yr)  
   first obs. used      2002-12-06  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .75012  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:23:18  

Additional Information
 Earth MOID = 1.005 au 
 Jupiter MOID = 2.94234 au 
 T_jup = 3.704 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456875.5 (2014-Aug-06.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06493783460181334 9.3054e-08  
q 2.001668489234093 2.0688e-07 au
tp 2456874.876876776882
(2014-Aug-05.37687678)
0.00014519 TDB
node 69.20387324266335 7.7697e-05 deg
peri 284.3272614011062 9.0072e-05 deg
i 5.999146319683901 6.4986e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      5962 days (16.32 yr)  
   first obs. used      2002-12-06  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .75012  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:23:18  

Additional Information
 Jupiter MOID = 2.94234 au 
 T_jup = 3.704 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.658972070958813E-15 -1.919928909407261E-14 7.02853801918315E-12 1.225328198868748E-13 2.072556663022489E-12 -2.292089289598242E-14
q -1.919928909407261E-14 4.279768271155267E-14 -1.612702100160375E-11 -2.670712368055676E-13 -4.774422650184818E-12 5.114018212111101E-14
tp 7.02853801918315E-12 -1.612702100160375E-11 2.108117172719272E-8 9.433197919184404E-11 6.686620503854535E-9 -2.005565066339331E-11
node 1.225328198868748E-13 -2.670712368055676E-13 9.433197919184404E-11 6.03675071478778E-9 -5.974979129447636E-9 -2.95471174213663E-10
peri 2.072556663022489E-12 -4.774422650184818E-12 6.686620503854535E-9 -5.974979129447636E-9 8.112974157426751E-9 2.875863600224732E-10
i -2.292089289598242E-14 5.114018212111101E-14 -2.005565066339331E-11 -2.95471174213663E-10 2.875863600224732E-10 4.223152160775248E-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 18.1   n/a MPO423025  

266667 (2008 WS117)          Discovered 2008-Nov-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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