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30821 Chernetenko (1990 RR17)
Classification: Main-belt Asteroid          SPK-ID: 2030821
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO257079 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.2045056 n/a  
a 2.3129002 n/a AU
q 1.8398992 n/a AU
i 4.27592 n/a deg
node 270.16787 n/a deg
peri 53.71159 n/a deg
M 179.74801 n/a deg
tp 2455759.0019279
(2011-Jul-16.50192790)		 n/a JED
period 1284.7947856
3.52		 n/a
n/a		 d
yr
n 0.28020039 n/a deg/d
Q 2.7859012 n/a AU
   Orbit Determination Parameters
   # obs. used (total)      736  
   first obs. used      1976-??-??  
   last obs. used      2013-03-04  
   # oppositions      15  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.53  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.551 

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a PDS3 (MPO 18550)  

30821 Chernetenko           Discovered 1990 Sept. 15 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Yuliya Andreevna Chernetenko (b. 1946) is well known for her investigation of the motion of Comet 2P/Encke. More recently she has established systematic effects in the Hipparcos and other star catalogues using positions of selected minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

Alternate Designations
 1990 RR17 = 1976 WV = 1990 UF12 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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