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266220 (2006 WU198)
Classification: Main-belt Asteroid          SPK-ID: 2266220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08599036206843015 3.6024e-08  
a 2.407603411418633 1.8128e-08 au
q 2.200572722353558 8.9243e-08 au
i 5.356879490180145 4.2135e-06 deg
node 272.0555945764157 5.436e-05 deg
peri 176.7044065210664 6.6709e-05 deg
M 209.4235041774847 4.1071e-05 deg
tp 2459571.229784148986
(2021-Dec-22.72978415)
0.00015989 TDB
period 1364.507263708766
3.74
1.5411e-05
4.219e-08
d
yr
n .2638315013593337 2.9797e-09 deg/d
Q 2.614634100483709 1.9687e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      9056 days (24.79 yr)  
   first obs. used      1995-12-31  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:27:03  

Additional Information
 Earth MOID = 1.21707 au 
 Jupiter MOID = 2.53545 au 
 T_jup = 3.511 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458020.5 (2017-Sep-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08701328733594534 3.6037e-08  
q 2.196936262670196 8.9579e-08 au
tp 2458205.090648809829
(2018-Mar-27.59064881)
0.00014797 TDB
node 272.0638872048581 5.4375e-05 deg
peri 176.1564925997881 6.6437e-05 deg
i 5.35696948069388 4.2122e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      9056 days (24.79 yr)  
   first obs. used      1995-12-31  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:27:03  

Additional Information
 Jupiter MOID = 2.53545 au 
 T_jup = 3.511 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.298644374685908E-15 -3.173056146444786E-15 3.17409555054059E-13 -1.299194896771536E-14 1.010460523741671E-13 -4.378353088155676E-16
q -3.173056146444786E-15 8.024460769738351E-15 7.343447194635789E-13 3.079785031512943E-14 1.341254636843166E-13 1.085070459436855E-15
tp 3.17409555054059E-13 7.343447194635789E-13 2.189613914336287E-8 -1.515639185285366E-11 5.677462985689587E-9 -5.044264226045752E-12
node -1.299194896771536E-14 3.079785031512943E-14 -1.515639185285366E-11 2.956604103951343E-9 -2.947456292868205E-9 4.398031714303095E-11
peri 1.010460523741671E-13 1.341254636843166E-13 5.677462985689587E-9 -2.947456292868205E-9 4.41388869489413E-9 -4.51148611909352E-11
i -4.378353088155676E-16 1.085070459436855E-15 -5.044264226045752E-12 4.398031714303095E-11 -4.51148611909352E-11 1.774295195020709E-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 17.0   n/a MPO433728  

266220 (2006 WU198)          Discovered 2006-Nov-20 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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