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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2216524852958151 5.3529e-08  
a 2.350600293421275 1.0988e-08 au
q 1.829583896447378 1.2566e-07 au
i 4.489143737307725 6.1776e-06 deg
node 354.3607787819591 6.1373e-05 deg
peri 38.59701311285587 6.2869e-05 deg
M 115.9264854905529 1.1204e-05 deg
tp 2456976.616243120223
(2014-Nov-15.11624312)
4.1334e-05 JED
period 1316.335536534101
3.60
9.23e-06
2.527e-08
d
yr
n .2734865009782207 1.9177e-09 deg/d
Q 2.871616690395173 1.3424e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      15158 days (41.50 yr)  
   first obs. used      1974-06-18  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4977  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:39:23  

Additional Information
 Earth MOID = .83645 au 
 Jupiter MOID = 2.58222 au 
 T_jup = 3.520 
[ 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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