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18751 Yualexandrov (1999 GO9)
Classification: Main-belt Asteroid          SPK-ID: 2018751
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2508136801632975 4.9865e-08  
a 2.22939932875466 1.3696e-08 AU
q 1.670235478556118 1.0754e-07 AU
i 4.642371323056495 5.6213e-06 deg
node 343.7068921992164 5.6481e-05 deg
peri 328.6727919389866 5.7572e-05 deg
M 184.0442478134439 1.4495e-05 deg
tp 2457594.766425045782
(2016-Jul-25.26642505)
5.3189e-05 JED
period 1215.850634934952
3.33
1.1205e-05
3.068e-08
d
yr
n .2960890011125913 2.7286e-09 deg/d
Q 2.788563178953201 1.7132e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      965  
   data-arc span      7417 days (20.31 yr)  
   first obs. used      1993-10-08  
   last obs. used      2014-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52877  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:10:33  

Additional Information
 Earth MOID = .659406 AU 
 T_jup = 3.597 
[ 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 14.7 mag n/a MPO279711  

18751 Yualexandrov           Discovered 1999 Apr. 15 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Yurij Vladimirovich Alexandrov (b. 1934) is a professor at the V. N. Karazin Kharkiv National University. A well-regarded teacher, Alexandrov is the author of Physics of Planets, Celestial Mechanics and other textbooks for university students. The name was suggested by D. F. Lupishko and Yu. G. Shkuratov.
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
 1999 GO9 = 1993 TX4 = 1995 BG6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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