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4858 Vorobjov (1985 UA)
Classification: Main-belt Asteroid          SPK-ID: 2004858
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1091740663909312 4.9106e-08  
a 2.182074772029958 1.137e-08 AU
q 1.943848795998383 1.0972e-07 AU
i 3.275363146932552 6.174e-06 deg
node 329.9991497290314 9.5494e-05 deg
peri 125.3181905362558 0.00010311 deg
M 313.7000562866368 3.3931e-05 deg
tp 2457151.919159626698
(2015-May-09.41915963)
0.0001108 JED
period 1177.34262924985
3.22
9.2022e-06
2.519e-08
d
yr
n .3057733501328972 2.39e-09 deg/d
Q 2.420300748061533 1.2612e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1082  
   data-arc span      10576 days (28.96 yr)  
   first obs. used      1985-10-20  
   last obs. used      2014-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50408  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:02:17  

Additional Information
 Earth MOID = .962571 AU 
 T_jup = 3.670 
[ 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 14.1 mag n/a MPO265983  

4858 Vorobjov           Discovered 1985 Oct. 23 by J. Gibson at Palomar.
Amateur astronomer Tomas Vorobjov (b. 1984) is an assiduous observer of minor planets and a participant in the International Astronomical Search Collaboration. He has been responsible for verifying student asteroid discoveries and taking follow-up images to complete the discovery process. Name suggested by S. Foglia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110715/MPCPages.arcLast Updated: 2011-07-20

Alternate Designations
 1985 UA = 1988 RV6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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