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118458 (1999 WY11)
Classification: Main-belt Asteroid          SPK-ID: 2118458
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1043531933839146 4.3021e-08  
a 2.149725942680722 9.0938e-09 au
q 1.925395175661742 9.621e-08 au
i 1.723778118968561 4.6613e-06 deg
node 100.3558982032782 0.00011647 deg
peri 172.1725168990668 0.000119 deg
M 39.00951361706765 2.1166e-05 deg
tp 2459075.749841008436
(2020-Aug-14.24984101)
6.7956e-05 TDB
period 1151.259092277272
3.15
7.3051e-06
2e-08
d
yr
n .3127011134286848 1.9842e-09 deg/d
Q 2.374056709699701 1.0043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      7535 days (20.63 yr)  
   first obs. used      1999-11-28  
   last obs. used      2020-07-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53949  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:57:22  

Additional Information
 Earth MOID = .907298 au 
 Jupiter MOID = 2.69313 au 
 T_jup = 3.698 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456971.5 (2014-Nov-10.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1043716975430787 4.3116e-08  
q 1.925080079768337 9.6342e-08 au
tp 2456773.911671151566
(2014-Apr-26.41167115)
7.4033e-05 TDB
node 100.3679832377011 0.00011647 deg
peri 172.2463042984466 0.000119 deg
i 1.723871994401729 4.6618e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      7535 days (20.63 yr)  
   first obs. used      1999-11-28  
   last obs. used      2020-07-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53949  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:57:22  

Additional Information
 Jupiter MOID = 2.69313 au 
 T_jup = 3.698 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.858953852695768E-15 -4.141772101850559E-15 1.260863701282557E-12 7.425751676133473E-15 3.977516243860095E-13 -1.846324371413292E-15
q -4.141772101850559E-15 9.281689928364683E-15 -3.014918631436759E-12 -1.811624988283736E-14 -9.511227782075446E-13 4.121273625815632E-15
tp 1.260863701282557E-12 -3.014918631436759E-12 5.48092051750168E-9 4.269105000501422E-11 1.813325974800678E-9 -1.209879020854733E-12
node 7.425751676133473E-15 -1.811624988283736E-14 4.269105000501422E-11 1.356610039803364E-8 -1.354508004220929E-8 1.023386616436503E-10
peri 3.977516243860095E-13 -9.511227782075446E-13 1.813325974800678E-9 -1.354508004220929E-8 1.416110220759366E-8 -1.026780203618944E-10
i -1.846324371413292E-15 4.121273625815632E-15 -1.209879020854733E-12 1.023386616436503E-10 -1.026780203618944E-10 2.173262748226427E-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 16.97   n/a E2021B55  

118458 (1999 WY11)          Discovered 1999-Nov-28 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 1999 WY11 = 2001 GG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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