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207273 (2005 EL321)
Classification: Main-belt Asteroid          SPK-ID: 2207273
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01466240596752111 5.8519e-08  
a 2.612708973077902 1.9305e-08 au
q 2.574400373439648 1.6094e-07 au
i 2.334794426274668 6.1083e-06 deg
node 80.31307458849236 0.00012066 deg
peri 29.81817290945392 0.00022145 deg
M 317.8740143133928 0.00018572 deg
tp 2459381.002223951516
(2021-Jun-15.50222395)
0.00079591 TDB
period 1542.534840750437
4.22
1.7097e-05
4.681e-08
d
yr
n .2333820867377371 2.5867e-09 deg/d
Q 2.651017572716155 1.9589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      200  
   data-arc span      7716 days (21.13 yr)  
   first obs. used      1999-12-02  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56749  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:33:27  

Additional Information
 Earth MOID = 1.59128 au 
 Jupiter MOID = 2.33425 au 
 T_jup = 3.407 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457885.5 (2017-May-12.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01308073492051946 5.8687e-08  
q 2.578194812257305 1.6103e-07 au
tp 2457820.885588215184
(2017-Mar-08.38558822)
0.00088373 TDB
node 80.32042303549257 0.0001207 deg
peri 25.80490320103006 0.00023928 deg
i 2.335126313646759 6.1058e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      200  
   data-arc span      7716 days (21.13 yr)  
   first obs. used      1999-12-02  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56749  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:33:27  

Additional Information
 Jupiter MOID = 2.33425 au 
 T_jup = 3.407 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.444133450378948E-15 -9.392903112663972E-15 -7.844265430703074E-12 -1.740743247540563E-14 -1.709551358262232E-12 5.964702371621882E-16
q -9.392903112663972E-15 2.593151203209092E-14 2.069878509253341E-11 4.524582772193006E-14 4.501729891503256E-12 -1.473514374292178E-15
tp -7.844265430703074E-12 2.069878509253341E-11 7.809761501166205E-7 -3.537357127048727E-11 1.825914513025102E-7 1.065040644072625E-11
node -1.740743247540563E-14 4.524582772193006E-14 -3.537357127048727E-11 1.456963960367886E-8 -1.456589671120247E-8 -3.736005448830801E-11
peri -1.709551358262232E-12 4.501729891503256E-12 1.825914513025102E-7 -1.456589671120247E-8 5.725378082578384E-8 3.984060572806217E-11
i 5.964702371621882E-16 -1.473514374292178E-15 1.065040644072625E-11 -3.736005448830801E-11 3.984060572806217E-11 3.728061593800957E-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 16.9   n/a MPO494155  

207273 (2005 EL321)          Discovered 2005-Mar-08 by Lowe, A. at Mayhill
Reference: 20090209/Numbers.arcLast Updated: 2009-02-11

[ show close-approach data ]
Alternate Designations
 2005 EL321 = 2007 VD103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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