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117637 (2005 EJ131)
Classification: Main-belt Asteroid          SPK-ID: 2117637
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08465797179541922 4.2529e-08  
a 2.737149885067664 1.8654e-08 au
q 2.505428327297771 1.1321e-07 au
i 9.761071062177177 4.6617e-06 deg
node 90.62600907947345 2.6401e-05 deg
peri 55.38407403863356 3.8087e-05 deg
M 223.8265604699144 2.8907e-05 deg
tp 2460022.156848922770
(2023-Mar-18.65684892)
0.00013423 TDB
period 1654.041099273506
4.53
1.6909e-05
4.629e-08
d
yr
n .2176487634788038 2.225e-09 deg/d
Q 2.968871442837557 2.0233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      464  
   data-arc span      9435 days (25.83 yr)  
   first obs. used      1994-11-11  
   last obs. used      2020-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56723  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:53:34  

Additional Information
 Earth MOID = 1.53387 au 
 Jupiter MOID = 2.09853 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457627.5 (2016-Aug-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08299718579379937 4.2086e-08  
q 2.511288022281872 1.1185e-07 au
tp 2458357.944123779388
(2018-Aug-27.44412378)
0.00013526 TDB
node 90.69794966486448 2.6342e-05 deg
peri 53.4861457392293 3.8722e-05 deg
i 9.770253158158607 4.6659e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      464  
   data-arc span      9435 days (25.83 yr)  
   first obs. used      1994-11-11  
   last obs. used      2020-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56723  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:53:34  

Additional Information
 Jupiter MOID = 2.09853 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.771252163246292E-15 -4.656514468438863E-15 4.349481534031095E-13 -1.115767096531443E-14 6.67499672620341E-14 8.964088194460472E-16
q -4.656514468438863E-15 1.250993695780281E-14 -8.423141824345327E-13 2.839124861197666E-14 -1.376537594782888E-13 -2.073409031252705E-15
tp 4.349481534031095E-13 -8.423141824345327E-13 1.829599372127715E-8 -4.11167738405086E-13 3.854701946401821E-9 -1.357865337511122E-12
node -1.115767096531443E-14 2.839124861197666E-14 -4.11167738405086E-13 6.938833600869262E-10 -6.834575103848949E-10 6.414731982887917E-13
peri 6.67499672620341E-14 -1.376537594782888E-13 3.854701946401821E-9 -6.834575103848949E-10 1.499424047181275E-9 -9.990966887903296E-13
i 8.964088194460472E-16 -2.073409031252705E-15 -1.357865337511122E-12 6.414731982887917E-13 -9.990966887903296E-13 2.177081660467562E-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 15.44   n/a E2021B55  

117637 (2005 EJ131)          Discovered 2005-Mar-09 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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