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9914 Obukhova (1976 UJ4)
Classification: Main-belt Asteroid          SPK-ID: 2009914
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2071433693096862 3.214e-08  
a 2.672564182636738 1.0874e-08 au
q 2.118960233148977 8.8464e-08 au
i 3.473468811658042 3.5472e-06 deg
node 85.37752779284003 7.0504e-05 deg
peri 325.5474376044895 7.1276e-05 deg
M 349.9014252347809 1.1735e-05 deg
tp 2459045.265993454417
(2020-Jul-14.76599345)
5.216e-05 TDB
period 1595.84476208417
4.37
9.7399e-06
2.667e-08
d
yr
n .2255858518029289 1.3768e-09 deg/d
Q 3.2261681321245 1.3127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1590  
   data-arc span      15984 days (43.76 yr)  
   first obs. used      1976-10-28  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53429  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:13:32  

Additional Information
 Earth MOID = 1.13087 au 
 Jupiter MOID = 2.15265 au 
 T_jup = 3.347 
[ 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 14.1   n/a MPO502244  
diameter diameter 8.649 km 0.302 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9914 Obukhova           Discovered 1976 Oct. 28 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Russian singer Nadezhda Andreevna Obukhova (1886-1961), soloist at the Bolshoj Theater from 1916 to 1948 and People's Artist of the U.S.S.R. in 1937, was an outstanding representative of the Russian vocal school. Her voice was of uncommon beauty, with a wide range, a rich timbre, and a deep, warm and full tone.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040504/MPCPages.arcLast Updated: 2004-05-11

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Alternate Designations
 1976 UJ4 = 1976 YM4 = 1986 AZ = 1989 UX9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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