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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2040934861898805 6.1795e-08  
a 2.207280808819382 1.2474e-08 AU
q 1.756789173547415 1.355e-07 AU
i 5.287823937782744 6.2165e-06 deg
node 254.4686471681201 6.8367e-05 deg
peri 107.9771364951416 6.9839e-05 deg
M 126.1865733489624 1.8116e-05 deg
tp 2456380.648746481009
(2013-Mar-29.14874648)
5.8309e-05 JED
period 1197.801376608026
3.28
1.0154e-05
2.78e-08
d
yr
n .3005506647683609 2.5478e-09 deg/d
Q 2.657772444091349 1.502e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      822  
   data-arc span      20569 days (56.31 yr)  
   first obs. used      1957-11-26  
   last obs. used      2014-03-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62523  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:54:34  

Additional Information
 Earth MOID = .761989 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 14.6 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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