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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 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1091610938094769 5.3818e-08  
a 2.182442756481684 1.2255e-08 AU
q 1.944204918007574 1.1751e-07 AU
i 3.274966279951715 6.9899e-06 deg
node 330.0087967659062 9.944e-05 deg
peri 125.1295189946731 0.00010867 deg
M 130.4730025835836 3.7678e-05 deg
tp 2455973.693647151353
(2012-Feb-16.19364715)		 0.00012427 JED
period 1177.640461880852
3.22		 9.9193e-06
2.716e-08		 d
yr
n .3056960181421001 2.5749e-09 deg/d
Q 2.420680594955795 1.3593e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      1039  
   data-arc span      10038 days (27.48 yr)  
   first obs. used      1985-10-20  
   last obs. used      2013-04-14  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .542  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 13:13:54  

Additional Information
 Earth MOID = .962514 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 14.2 mag n/a PDS3 (MPC 28112)  

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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