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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1152023099998511 5.1874e-08  
a 2.287249509097315 1.1067e-08 AU
q 2.023753082103279 1.2091e-07 AU
i 3.686581957778602 5.2368e-06 deg
node 277.9544294636634 8.6254e-05 deg
peri 216.4335967777784 9.0192e-05 deg
M 307.4562652637825 2.4596e-05 deg
tp 2457184.911151337163
(2015-Jun-11.41115134)
8.6317e-05 JED
period 1263.481075615639
3.46
9.1699e-06
2.511e-08
d
yr
n .2849271009655508 2.0679e-09 deg/d
Q 2.550745936091351 1.2342e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1009  
   data-arc span      12976 days (35.53 yr)  
   first obs. used      1979-09-18  
   last obs. used      2015-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47172  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:31:01  

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 LCDB (Rev. 2015-May); Warner et al., 2009 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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