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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06688532219231541 5.1351e-08  
a 2.429167363303062 1.4505e-08 AU
q 2.26669172154948 1.2581e-07 AU
i 5.895153665609175 5.5487e-06 deg
node 211.5866011211609 4.8885e-05 deg
peri 302.1019301025821 6.549e-05 deg
M 314.72351526679 4.2342e-05 deg
tp 2457174.422105105223
(2015-May-31.92210511)
0.00016257 JED
period 1382.880278953165
3.79
1.2386e-05
3.391e-08
d
yr
n .2603262230860061 2.3316e-09 deg/d
Q 2.591643005056644 1.5475e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1361  
   data-arc span      16449 days (45.03 yr)  
   first obs. used      1970-03-04  
   last obs. used      2015-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49651  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:34:44  

Additional Information
 Earth MOID = 1.28283 AU 
 T_jup = 3.498 
[ 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 13.6 mag n/a MPO319202  

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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