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12979 Evgalvasil'ev (1978 SB8)
Classification: Main-belt Asteroid          SPK-ID: 2012979
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1786698318461873 6.6978e-08  
a 2.268026516521438 1.2843e-08 au
q 1.862798600191859 1.5535e-07 au
i 5.355965525261417 6.8849e-06 deg
node 14.67328755261887 6.7097e-05 deg
peri 354.2802625934401 6.9589e-05 deg
M 29.8401408522243 2.2164e-05 deg
tp 2457497.088464552324
(2016-Apr-18.58846455)
7.6231e-05 JED
period 1247.586361791198
3.42
1.0597e-05
2.901e-08
d
yr
n .2885571781043975 2.4511e-09 deg/d
Q 2.673254432851018 1.5138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      13959 days (38.22 yr)  
   first obs. used      1977-04-24  
   last obs. used      2015-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55165  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:37:26  

Additional Information
 Earth MOID = .861041 au 
 Jupiter MOID = 2.78079 au 
 T_jup = 3.588 
[ 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 14.7 mag n/a MPO299057  
rotation period rot_per 5.78331 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 sidereal period (not synodic); Incomplete or inconclusive result.
Published Reference List:
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]

12979 Evgalvasil'ev           Discovered 1978 Sept. 26 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Evgenij Aleksandrovich Vasil'ev (1935-2003) was a talented educator, the creator and permanent head of the pioneer camp "Lesnoj" in a complex of "Artek" pioneer camps in the Crimea.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

Alternate Designations
 1978 SB8 = 1977 HP 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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