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5617 Emelyanenko (1989 EL)
Classification: Main-belt Asteroid          SPK-ID: 2005617
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .143196682598639 4.8831e-08  
a 2.425338463102347 1.4485e-08 AU
q 2.078038041007209 1.1909e-07 AU
i 5.430116898414957 6.4214e-06 deg
node 243.3519912190121 5.7635e-05 deg
peri 254.9777025852251 6.2724e-05 deg
M 321.7736980754959 2.5075e-05 deg
tp 2457146.992956224712
(2015-May-04.49295622)
9.6418e-05 JED
period 1379.611984048346
3.78
1.236e-05
3.384e-08
d
yr
n .2609429347979514 2.3377e-09 deg/d
Q 2.772638885197485 1.656e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1148  
   data-arc span      21883 days (59.91 yr)  
   first obs. used      1955-04-18  
   last obs. used      2015-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50116  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:22:27  

Additional Information
 Earth MOID = 1.0998 AU 
 T_jup = 3.491 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO267730  

5617 Emelyanenko           Discovered 1989 Mar. 5 by E. F. Helin at Palomar.
Vyacheslav Emelyanenko (b. 1952), head of the department of theoretical mechanics at South Ural University, has made a lifetime study of celestial mechanics, with major contributions to understanding the dynamical evolution of comets, minor planets and meteoroid streams. The name was suggested by M. Bailey.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1989 EL = 1987 UG2 = 1990 OR4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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