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18293 Pilyugin (1978 SQ4)
Classification: Main-belt Asteroid          SPK-ID: 2018293
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2213355613888983 5.4042e-08  
a 2.349346085493018 1.1073e-08 AU
q 1.82935225076361 1.27e-07 AU
i 4.488970173339133 6.7795e-06 deg
node 354.3648651598586 6.2883e-05 deg
peri 38.45456234424898 6.4408e-05 deg
M 6.652805246345882 1.2161e-05 deg
tp 2456976.193566830942
(2014-Nov-14.69356683)
4.4442e-05 JED
period 1315.282142922658
3.60
9.2989e-06
2.546e-08
d
yr
n .2737055330197462 1.9351e-09 deg/d
Q 2.869339920222426 1.3524e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      889  
   data-arc span      14745 days (40.37 yr)  
   first obs. used      1974-06-18  
   last obs. used      2014-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51999  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:31:27  

Additional Information
 Earth MOID = .837398 AU 
 T_jup = 3.521 
[ 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 14.2 mag n/a MPO263510  

18293 Pilyugin           Discovered 1978 Sept. 27 by L. I. Chernykh at the Crimean Astrophysical Observatory.
Nikolaj Alekseevich Pilyugin (1908-1982) was the general designer of autonomous control systems and computers for space rocketry. His inventions allowed the realization of programs such as Sputnik, Luna, Vostok and many others.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080321/MPCPages.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 1978 SQ4 = 1978 RT5 = 1982 YB5 = 1987 GN1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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