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117644 (2005 EC139)
Classification: Main-belt Asteroid          SPK-ID: 2117644
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1367937404543736 3.6838e-08  
a 2.285873243561421 9.8609e-09 au
q 1.973180092370083 8.3051e-08 au
i 5.539061559725297 5.667e-06 deg
node 25.90153094696925 4.6729e-05 deg
peri 240.4846795476403 5.1672e-05 deg
M 85.71435343436566 2.1531e-05 deg
tp 2458699.942412648660
(2019-Aug-04.44241265)
7.5177e-05 TDB
period 1262.340869541009
3.46
8.1683e-06
2.236e-08
d
yr
n .2851844606210819 1.8454e-09 deg/d
Q 2.598566394752759 1.121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      506  
   data-arc span      7688 days (21.05 yr)  
   first obs. used      1998-04-20  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61557  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:56  

Additional Information
 Earth MOID = .964652 au 
 Jupiter MOID = 2.48244 au 
 T_jup = 3.583 
[ show covariance matrix ]

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 16.3   n/a MPO432680  

117644 (2005 EC139)          Discovered 2005-Mar-09 by Mt. Lemmon Survey at Mt. Lemmon
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2005 EC139 = 2005 EE260 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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