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7011 Worley (1987 SK1)
Classification: Main-belt Asteroid          SPK-ID: 2007011
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1544442146941242 7.3481e-08  
a 2.274833776988295 1.3757e-08 AU
q 1.92349886074167 1.704e-07 AU
i 5.71074606362201 9.9299e-06 deg
node 12.19407099843162 5.6394e-05 deg
peri 32.2702701788857 6.3361e-05 deg
M 302.1475779467753 3.0271e-05 deg
tp 2457201.891888354737
(2015-Jun-28.39188835)
0.00010627 JED
period 1253.207337473335
3.43
1.1368e-05
3.112e-08
d
yr
n .2872629206958022 2.6058e-09 deg/d
Q 2.626168693234921 1.5882e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      16079 days (44.02 yr)  
   first obs. used      1970-09-30  
   last obs. used      2014-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51108  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:03:15  

Additional Information
 Earth MOID = .934448 AU 
 T_jup = 3.587 
[ 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 14.1 mag n/a PDS3 (MPC 28116)  

7011 Worley           Discovered 1987 Sept. 21 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
Named in memory of Charles Edmund Worley (1935-1997), indefatigable observer and cataloguer of double-star positions. Following two years at the Lick Observatory, he was on the staff of the U.S. Naval Observatory from 1961. His work has significantly enhanced our knowledge of the motion of double-star and multiple-star systems and of stellar masses. Name suggested by H. Eichhorn.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980211/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1987 SK1 = 1970 SV = 1994 TP3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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