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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08297541321020303 4.8157e-08  
a 2.741068420817331 2.1481e-08 au
q 2.513627135962574 1.3144e-07 au
i 9.768762041561921 5.3757e-06 deg
node 90.68317723955809 3.4428e-05 deg
peri 54.79401503830608 4.947e-05 deg
M 138.3617878972483 3.6057e-05 deg
tp 2458363.423030098208
(2018-Sep-01.92303010)
0.00016593 TDB
period 1657.59428705103
4.54
1.9485e-05
5.335e-08
d
yr
n .217182215703979 2.5529e-09 deg/d
Q 2.968509705672087 2.3263e-08 au
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      8946 days (24.49 yr)  
   first obs. used      1994-11-11  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61183  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:56  

Additional Information
 Earth MOID = 1.54127 au 
 Jupiter MOID = 2.10069 au 
 T_jup = 3.324 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457041.5 (2015-Jan-19.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08327263305583771 4.778e-08  
q 2.509468696675141 1.3017e-07 au
tp 2456701.815325267060
(2014-Feb-13.31532527)
0.00016677 TDB
node 90.70402700945922 3.4427e-05 deg
peri 53.23483928934546 4.9601e-05 deg
i 9.772331253099814 5.3785e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      8946 days (24.49 yr)  
   first obs. used      1994-11-11  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61183  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:56  

Additional Information
 Jupiter MOID = 2.10069 au 
 T_jup = 3.324 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.282916904357881E-15 -6.151270229127764E-15 7.752182796076308E-13 -1.084423497618002E-14 2.002065253057138E-13 1.538987619940977E-15
q -6.151270229127764E-15 1.694525159690267E-14 -2.411045777623631E-12 2.697395174980252E-14 -5.932026926045351E-13 -3.787006115706262E-15
tp 7.752182796076308E-13 -2.411045777623631E-12 2.781180158606442E-8 -5.646062822622707E-12 5.995230199624544E-9 1.416011864473182E-12
node -1.084423497618002E-14 2.697395174980252E-14 -5.646062822622707E-12 1.185235818599412E-9 -1.16917767321968E-9 -1.471888901172176E-11
peri 2.002065253057138E-13 -5.932026926045351E-13 5.995230199624544E-9 -1.16917767321968E-9 2.460215798789549E-9 1.483682005069804E-11
i 1.538987619940977E-15 -3.787006115706262E-15 1.416011864473182E-12 -1.471888901172176E-11 1.483682005069804E-11 2.89283181806161E-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 15.3   n/a MPO432680  

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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