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8253 Brunetto (1981 EU15)
Classification: Main-belt Asteroid          SPK-ID: 2008253
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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1117320983476758 5.5657e-08  
a 2.290490452027044 1.3875e-08 AU
q 2.034569147576746 1.2556e-07 AU
i 4.648027849810942 5.7912e-06 deg
node 232.0861934692469 7.7154e-05 deg
peri 243.838311961848 8.4651e-05 deg
M 260.4477145765926 3.2501e-05 deg
tp 2457150.638518075439
(2015-May-08.13851808)
0.0001146 JED
period 1266.167481450108
3.47
1.1505e-05
3.15e-08
d
yr
n .284322576021066 2.5835e-09 deg/d
Q 2.546411756477342 1.5425e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      12349 days (33.81 yr)  
   first obs. used      1979-09-20  
   last obs. used      2013-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58354  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 15:54:54  

Additional Information
 Earth MOID = 1.05573 AU 
 T_jup = 3.586 
[ 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 15.3 mag n/a MPO266002  
rotation period rot_per 3.9 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Binzel, R.P.; Xu, S.; Bus, S.J.; Bowell, E. (1992) Icarus 99, 225-237; Science 257, 779-782.]

8253 Brunetto           Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Rosario Brunetto (b. 1980) is an astronomer at the Institut d´Astrophysique Spatiale in Orsay, France, who specializes in laboratory ionization investigations of space weathering processes on minor-planet surfaces.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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