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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06688533309193072 5.3589e-08  
a 2.429167367969726 1.5887e-08 AU
q 2.266691699427022 1.2961e-07 AU
i 5.895154585102039 6.2591e-06 deg
node 211.5865971302023 4.8939e-05 deg
peri 302.1019467834715 6.7882e-05 deg
M 314.7235001781295 4.7217e-05 deg
tp 2457174.422163566991
(2015-May-31.92216357)
0.00018162 JED
period 1382.880282938134
3.79
1.3566e-05
3.714e-08
d
yr
n .2603262223358386 2.5538e-09 deg/d
Q 2.59164303651243 1.6949e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      16371 days (44.82 yr)  
   first obs. used      1970-03-04  
   last obs. used      2014-12-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50545  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:29:30  

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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