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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 ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2222409381491344 5.3359e-08  
a 2.349762729218256 1.0204e-08 au
q 1.82754925584892 1.2493e-07 au
i 4.488096427764868 6.1631e-06 deg
node 354.3566725184939 5.3238e-05 deg
peri 38.61560665024047 5.4399e-05 deg
M 170.5787286423224 1.0254e-05 deg
tp 2456977.114328605146
(2014-Nov-15.61432861)
3.7227e-05 JED
period 1315.632045615251
3.60
8.5695e-06
2.346e-08
d
yr
n .2736327388800014 1.7823e-09 deg/d
Q 2.871976202587592 1.2471e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1293  
   data-arc span      15274 days (41.82 yr)  
   first obs. used      1974-06-18  
   last obs. used      2016-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49604  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:29:34  

Additional Information
 Earth MOID = .834478 au 
 Jupiter MOID = 2.58062 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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