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18293 Pilyugin (1978 SQ4)
Classification: Main-belt Asteroid          SPK-ID: 2018293
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2216460240333947 6.303e-08  
a 2.34967361227855 1.3928e-08 AU
q 1.828877798340825 1.4623e-07 AU
i 4.488886889987942 8.1958e-06 deg
node 354.3815104799069 8.6659e-05 deg
peri 38.40655861909223 8.8616e-05 deg
M 202.5161881383807 2.1835e-05 deg
tp 2456975.997118914901
(2014-Nov-14.49711891)		 8.2324e-05 JED
period 1315.55720146914
3.60		 1.1697e-05
3.202e-08		 d
yr
n .2736483062826704 2.4332e-09 deg/d
Q 2.870469426216274 1.7015e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      796  
   data-arc span      14182 days (38.83 yr)  
   first obs. used      1974-06-18  
   last obs. used      2013-04-16  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .55789  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 14:18:28  

Additional Information
 Earth MOID = .836462 AU 
 T_jup = 3.521 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a PDS3 (MPO 5151)  

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

Alternate Designations
 1978 SQ4 = 1978 RT5 = 1982 YB5 = 1987 GN1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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