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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01454491742703666 6.721e-08  
a 2.612175215758921 2.8073e-08 au
q 2.574181342940756 1.7396e-07 au
i 2.334897077187957 6.6585e-06 deg
node 80.31181148659711 0.00017912 deg
peri 30.47909658466672 0.0003335 deg
M 270.5257826476998 0.00028686 deg
tp 2459383.763349863203
(2021-Jun-18.26334986)
0.0012323 TDB
period 1542.062172027549
4.22
2.4859e-05
6.806e-08
d
yr
n .2334536223832411 3.7634e-09 deg/d
Q 2.650169088577086 2.8481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      7237 days (19.81 yr)  
   first obs. used      1999-12-02  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55266  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:26:41  

Additional Information
 Earth MOID = 1.59114 au 
 Jupiter MOID = 2.33547 au 
 T_jup = 3.408 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457109.5 (2015-Mar-28.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0134651276839112 6.4914e-08  
q 2.578014206490282 1.694e-07 au
tp 2457814.908069072691
(2017-Mar-02.40806907)
0.0013526 TDB
node 80.32762262771115 0.0001792 deg
peri 24.4022291198876 0.00036037 deg
i 2.335046970514614 6.6512e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      7237 days (19.81 yr)  
   first obs. used      1999-12-02  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55266  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:26:41  

Additional Information
 Jupiter MOID = 2.33547 au 
 T_jup = 3.408 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.213879172678148E-15 -1.084592361320754E-14 2.168617038019038E-11 -9.049771028694543E-15 5.043265574564478E-12 2.207043494644658E-15
q -1.084592361320754E-14 2.869652395728362E-14 -3.49801218049054E-11 1.3699814170256E-14 -8.217810815965154E-12 -4.994177814866056E-15
tp 2.168617038019038E-11 -3.49801218049054E-11 1.829443346449872E-6 -7.371656145285655E-10 4.229371118414611E-7 4.159415296469158E-11
node -9.049771028694543E-15 1.3699814170256E-14 -7.371656145285655E-10 3.211389669055799E-8 -3.225726953799411E-8 2.966915476791423E-10
peri 5.043265574564478E-12 -8.217810815965154E-12 4.229371118414611E-7 -3.225726953799411E-8 1.298650307340038E-7 -2.868789353419222E-10
i 2.207043494644658E-15 -4.994177814866056E-15 4.159415296469158E-11 2.966915476791423E-10 -2.868789353419222E-10 4.423887377396822E-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

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