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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .221434122142421 5.6048e-08  
a 2.34968785229248 1.5503e-08 AU
q 1.829386785411384 1.2983e-07 AU
i 4.488813785208419 7.1363e-06 deg
node 354.3653773487115 7.9351e-05 deg
peri 38.4354419697352 8.1212e-05 deg
M 311.9345531711678 2.183e-05 deg
tp 2456976.148387624914
(2014-Nov-14.64838762)
8.0736e-05 JED
period 1315.569160735202
3.60
1.302e-05
3.565e-08
d
yr
n .2736458186651435 2.7082e-09 deg/d
Q 2.869988919173576 1.8936e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      14623 days (40.04 yr)  
   first obs. used      1974-06-18  
   last obs. used      2014-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52698  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:40:38  

Additional Information
 Earth MOID = .836348 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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