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5617 Emelyanenko (1989 EL)
Classification: Main-belt Asteroid          SPK-ID: 2005617
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1424194564236735 3.7512e-08  
a 2.426909736791455 8.1937e-09 au
q 2.081270571288296 9.0562e-08 au
i 5.427833754328268 3.7538e-06 deg
node 243.2918039328772 4.3499e-05 deg
peri 255.1142602700713 4.5501e-05 deg
M 123.4736744262454 1.2774e-05 deg
tp 2458526.857423813192
(2019-Feb-12.35742381)
4.8969e-05 TDB
period 1380.952889104327
3.78
6.9936e-06
1.915e-08
d
yr
n .2606895592459295 1.3202e-09 deg/d
Q 2.772548902294615 9.3607e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2009  
   data-arc span      23801 days (65.16 yr)  
   first obs. used      1955-04-18  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:22:12  

Additional Information
 Earth MOID = 1.10264 au 
 Jupiter MOID = 2.2874 au 
 T_jup = 3.490 
[ 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 13.7   n/a MPO337301  
diameter diameter 4.748 km 1.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.252   0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

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

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Alternate Designations
 1989 EL = 1987 UG2 = 1990 OR4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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