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172869 (2005 EH126)
Classification: Main-belt Asteroid          SPK-ID: 2172869
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07784282497618626 3.7918e-08  
a 2.598899154465229 1.8957e-08 au
q 2.396593502453434 9.3654e-08 au
i 15.67038031122859 3.979e-06 deg
node 103.72863040 1.8046e-05 deg
peri 177.5839511273284 3.8288e-05 deg
M 128.3430234733651 3.2894e-05 deg
tp 2458454.927672526841
(2018-Dec-02.42767253)
0.00014018 TDB
period 1530.321108035118
4.19
1.6744e-05
4.584e-08
d
yr
n .2352447457659577 2.5739e-09 deg/d
Q 2.801204806477025 2.0433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      445  
   data-arc span      6784 days (18.57 yr)  
   first obs. used      2001-04-25  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56703  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:01:23  

Additional Information
 Earth MOID = 1.38019 au 
 Jupiter MOID = 2.34453 au 
 T_jup = 3.359 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457358.5 (2015-Dec-02.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07860382226065522 3.7536e-08  
q 2.39460333651239 9.2754e-08 au
tp 2456927.270538786377
(2014-Sep-26.77053879)
0.00014202 TDB
node 103.7836464564 1.8065e-05 deg
peri 178.1434286227272 3.8199e-05 deg
i 15.66263358470622 3.9764e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      445  
   data-arc span      6784 days (18.57 yr)  
   first obs. used      2001-04-25  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56703  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:01:23  

Additional Information
 Jupiter MOID = 2.34453 au 
 T_jup = 3.359 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.408918563946695E-15 -3.426992513079891E-15 -1.944401753798939E-12 -1.803109015553133E-14 -4.577192515456932E-13 1.380771870628696E-15
q -3.426992513079891E-15 8.603327712357443E-15 4.544760080923398E-12 4.569916514256716E-14 1.082787699330488E-12 -2.211244838095438E-15
tp -1.944401753798939E-12 4.544760080923398E-12 2.017014152255258E-8 9.151899130960258E-11 4.811463999479855E-9 -2.427826891387198E-11
node -1.803109015553133E-14 4.569916514256716E-14 9.151899130960258E-11 3.263512135463965E-10 -2.916013107617247E-10 -1.915045509678014E-11
peri -4.577192515456932E-13 1.082787699330488E-12 4.811463999479855E-9 -2.916013107617247E-10 1.459194751146987E-9 1.254546411860523E-11
i 1.380771870628696E-15 -2.211244838095438E-15 -2.427826891387198E-11 -1.915045509678014E-11 1.254546411860523E-11 1.581154869478578E-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 15.7   n/a MPO439991  

172869 (2005 EH126)          Discovered 2005-Mar-08 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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