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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .204455501265244 6.065e-08  
a 2.206578146885468 1.4235e-08 AU
q 1.755431105783066 1.318e-07 AU
i 5.287758815939766 5.9138e-06 deg
node 254.4496253332463 6.6057e-05 deg
peri 107.9572255826827 6.7565e-05 deg
M 186.3507109234776 1.8741e-05 deg
tp 2457577.994569811297
(2016-Jul-08.49456981)
6.6219e-05 JED
period 1197.229463118919
3.28
1.1585e-05
3.172e-08
d
yr
n .3006942370614226 2.9097e-09 deg/d
Q 2.65772518798787 1.7145e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      831  
   data-arc span      20941 days (57.33 yr)  
   first obs. used      1957-11-26  
   last obs. used      2015-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60785  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:31:56  

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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