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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .204455506601134 6.0835e-08  
a 2.206578147903338 1.4262e-08 AU
q 1.755431094818769 1.3216e-07 AU
i 5.287758775307689 5.9294e-06 deg
node 254.4496236068694 6.6204e-05 deg
peri 107.957226252877 6.7708e-05 deg
M 186.3507109996504 1.8742e-05 deg
tp 2457577.994569957562
(2016-Jul-08.49456996)
6.6219e-05 JED
period 1197.229463947322
3.28
1.1608e-05
3.178e-08
d
yr
n .3006942368533622 2.9153e-09 deg/d
Q 2.657725200987907 1.7178e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      20621 days (56.46 yr)  
   first obs. used      1957-11-26  
   last obs. used      2014-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60631  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:39:51  

Additional Information
 Earth MOID = .762092 AU 
 T_jup = 3.628 
[ 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 14.6 mag n/a MPO240271  

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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