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8252 Elkins-Tanton (1981 EY14)
Classification: Main-belt Asteroid          SPK-ID: 2008252
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1152023742173889 6.1538e-08  
a 2.287249519931119 1.2398e-08 AU
q 2.023752944807471 1.401e-07 AU
i 3.686581609906643 5.5621e-06 deg
node 277.9544081476653 0.00010543 deg
peri 216.4336261245904 0.0001087 deg
M 307.4562504405557 2.579e-05 deg
tp 2457184.911204672018
(2015-Jun-11.41120467)
9.0708e-05 JED
period 1263.481084592561
3.46
1.0273e-05
2.813e-08
d
yr
n .284927098941169 2.3166e-09 deg/d
Q 2.550746095054766 1.3826e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      842  
   data-arc span      12798 days (35.04 yr)  
   first obs. used      1979-09-18  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4919  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:12:20  

Additional Information
 Earth MOID = 1.03967 AU 
 T_jup = 3.589 
[ 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 MPO267740  
rotation period rot_per 14.15 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Binzel, R.P.; Xu, S.; Bus, S.J.; Bowell, E. (1992) Icarus 99, 225-237; Science 257, 779-782.]

8252 Elkins-Tanton           Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Linda T. Elkins-Tanton (b. 1965) is the Director of the Department of Terrestrial Magnetism, Carnegie Institution of Washington. Her studies of minor-planet formation, heating, and differentiation have implications for understanding the parent body origins of meteorites.
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

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Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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