CORRECT POSITIONS of BERKELEY OLYMPIC CIRCLE MARKS

Based on magnetic variation = 16.0 degrees
and mark D located at 37 51.46 x 122 20.96


           MARK   LATITUDE  LONGITUDE      
 
             X    37 52.33  122 21.58    
 
             A    37 53.29  122 21.23    
             B    37 52.82  122 20.47    
             C    37 52.05  122 20.36    
             D    37 51.46  122 20.96    
             E    37 51.37  122 21.92    
             F    37 51.84  122 22.68    
             G    37 52.61  122 22.79    
             H    37 53.21  122 22.19    


Explanation of the Olympic Circle:

The Berkeley Olympic Circle is an array 8 marks in a circle of 2 nuatical miles diameter, with a ninth mark in the middle of the cicle.

Mark X is in the center, mark A is 1 mile magnetic north of X. Mark B is 1 mile from X at 45 degrees magnetic, C is at 90 degrees magnetic, etc.

All the marks except one are floating racing marks, privately maintained by the YRA of San Francisco Bay. The exception is mark D, which is a government-maintained day mark.

Correct postions of the racing marks are therefore determined by the location of this daymark.

Note that charted positions are based on aerial photography from previous years, and may not reflect either the current position or the correct position of the marks.


From: Tom Tazelaar

Positions of Olympic Circle Buoys based on a survey conducted by the Yacht WINDANCE using differential GPS on March 28 and 29, 1999:

X -- 37-52.306N 122-21.538W

A -- 37-53.296N 122-21.104W
B -- 37-52.786N 122-20.422W
C -- 37-52.067N 122-20.331W
D -- 37-51.455N 122-20.963W
E -- 37-51.319N 122-21.819W
F -- 37-51.783N 122-22.504W
G -- 37-52.408N 122-22.538W
H -- 37-52.969N 122-21.888W