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

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2045895789795674 6.245e-08  
a 2.313459803112067 1.7246e-08 AU
q 1.840150036007216 1.5012e-07 AU
i 4.275697788380629 5.8703e-06 deg
node 270.1669618829354 8.5607e-05 deg
peri 53.61116838087554 8.6527e-05 deg
M 347.9652620989022 1.7672e-05 deg
tp 2457043.466056917690
(2015-Jan-20.96605692)
6.3349e-05 JED
period 1285.261101445142
3.52
1.4372e-05
3.935e-08
d
yr
n .2800987282624657 3.1321e-09 deg/d
Q 2.786769570216917 2.0775e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      816  
   data-arc span      13733 days (37.60 yr)  
   first obs. used      1976-11-18  
   last obs. used      2014-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50548  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:03:32  

Additional Information
 Earth MOID = .832457 AU 
 T_jup = 3.551 
[ 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 14.3 mag n/a MPO263605  

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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