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8471 Obrant (1983 RX4)
Classification: Main-belt Asteroid          SPK-ID: 2008471
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2045940839301746 5.5894e-08  
a 2.206856300483209 1.3552e-08 au
q 1.755346557320313 1.226e-07 au
i 5.287578611896532 5.7019e-06 deg
node 254.4405244246215 6.1766e-05 deg
peri 107.8987392370103 6.3299e-05 deg
M 6.83718167337522 1.9936e-05 deg
tp 2457577.757713389843
(2016-Jul-08.25771339)
6.6155e-05 JED
period 1197.455848151356
3.28
1.103e-05
3.02e-08
d
yr
n .3006373893081499 2.7693e-09 deg/d
Q 2.658366043646105 1.6325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      889  
   data-arc span      21078 days (57.71 yr)  
   first obs. used      1957-11-26  
   last obs. used      2015-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59683  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:24:52  

Additional Information
 Earth MOID = .760806 au 
 Jupiter MOID = 2.81982 au 
 T_jup = 3.627 
[ 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 MPO337327  

8471 Obrant           Discovered 1983 Sept. 5 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
The ballet-master, producer and teacher-humanist Arkadij Efimovich Obrant (1906-1974) organized and headed a children's dancing ensemble during the siege of Leningrad in 1942-1945. The first Obrant contest of choreographic art took place in St. Petersburg in March 2002.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020526/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1983 RX4 = 1957 WG1 = 1993 VA1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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