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14346 Zhilyaev (1985 QG5)
Classification: Main-belt Asteroid          SPK-ID: 2014346
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1489526139832122 4.637e-08  
a 3.168391766065477 1.7746e-08 au
q 2.696451530387138 1.4435e-07 au
i 1.658006234514485 4.1098e-06 deg
node 66.61693971208636 0.00016026 deg
peri 286.2799295385105 0.00016075 deg
M 59.37413919742965 1.2091e-05 deg
tp 2458660.756179372083
(2019-Jun-26.25617937)
6.9453e-05 TDB
period 2059.950292826225
5.64
1.7306e-05
4.738e-08
d
yr
n .1747614984952305 1.4682e-09 deg/d
Q 3.640332001743816 2.0389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1706  
   data-arc span      12584 days (34.45 yr)  
   first obs. used      1985-08-23  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51501  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:55:53  

Additional Information
 Earth MOID = 1.6918 au 
 Jupiter MOID = 1.79373 au 
 T_jup = 3.185 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO502278  
diameter diameter 12.783 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14346 Zhilyaev           Discovered 1985 Aug. 23 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Boris Efimovich Zhilyaev (b. 1940) is chief of the high-speed photometry group at the main astronomical observatory of the National Academy of Sciences of Ukraine. He has organized an international network of synchronized HSPh telescopes to detect microsecond stellar variations at a level down to 0.001 magnitude.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

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Alternate Designations
 1985 QG5 = 1997 YZ19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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