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117646 (2005 EW139)
Classification: Main-belt Asteroid          SPK-ID: 2117646
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07182409661592587 4.2247e-08  
a 2.869477101447893 1.8256e-08 au
q 2.663379500876312 1.2387e-07 au
i 3.012385810336575 4.6291e-06 deg
node 108.1781133574641 9.0383e-05 deg
peri 159.9824710564593 9.607e-05 deg
M 340.7098976192228 3.1929e-05 deg
tp 2459095.633747297875
(2020-Sep-03.13374730)
0.00015741 TDB
period 1775.425985367696
4.86
1.6944e-05
4.639e-08
d
yr
n .2027682387026925 1.9351e-09 deg/d
Q 3.075574702019473 1.9568e-08 au
  Orbit Determination Parameters
   # obs. used (total)      659  
   data-arc span      7401 days (20.26 yr)  
   first obs. used      2000-03-11  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56521  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:50:31  

Additional Information
 Earth MOID = 1.64756 au 
 Jupiter MOID = 1.97802 au 
 T_jup = 3.293 
[ 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 15.3   n/a MPO432680  

117646 (2005 EW139)          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 EW139 = 2004 BK96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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