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9325 Stonehenge (1989 GG4)
Classification: Main-belt Asteroid          SPK-ID: 2009325
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06676626568893886 6.0325e-08  
a 2.428446651443271 1.7258e-08 AU
q 2.266308337101596 1.4329e-07 AU
i 5.895962321132263 7.2397e-06 deg
node 211.5963391179596 5.0387e-05 deg
peri 302.3250880616735 7.6429e-05 deg
M 262.4086605646476 5.9915e-05 deg
tp 2457175.214117565958
(2015-Jun-01.71411757)
0.00023168 JED
period 1382.264892604582
3.78
1.4735e-05
4.034e-08
d
yr
n .2604421207006546 2.7764e-09 deg/d
Q 2.590584965784946 1.8411e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1219  
   data-arc span      16029 days (43.89 yr)  
   first obs. used      1970-03-04  
   last obs. used      2014-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52887  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:11:02  

Additional Information
 Earth MOID = 1.28189 AU 
 T_jup = 3.499 
[ 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 13.5 mag n/a MPO267745  

9325 Stonehenge           Discovered 1989 Apr. 3 by E. W. Elst at the European Southern Observatory.
Stonehenge, a prehistoric circular complex of large standing stones, is located north of the city of Salisbury, England. Some parts of Stonehenge may have been used for astronomical observation.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

[ show close-approach data ]
Alternate Designations
 1989 GG4 = 1970 EM2 = 1993 KF2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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