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      ST JOHN'S (STJO)  SITE INFORMATION
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   0. Form

          Prepared by           : Robert Duval        
          date                  : 28-FEB-94 
          Report type           : Update    


   1. Site Identification of the GPS Monument 

          Site_name              : ST JOHN'S               
          4 char ID              : STJO    
          Monu_ins               : 920000  
          Iers_domes_no          : 40101M001 
          CDP Number             :   N/A 
          Date                   : Operational since 15-MAY-92
          Additional Information : Monument is a concrete pillar on bedrock 
                                   with force centering plate                                   
                                  
   2. Site Location:

          City                   : ST. JOHN'S, NEWFOUNDLAND                    
          Country                : CANADA         
          Tectonic Plate         : NOAM    
          Additional information : Located at Geological Survey of Canada 
                                   (NRCan) seismic station

   3. GPS Receiver(s): 
      
          Type                   : MINI-ROGUE SNR-8C   
          Serial Number          : CR310          
          Firmware Version       : MEENIX 7.?                    
          Date                   : 15-MAY-92  to  21-DEC-92

      
          Type                   : MINI-ROGUE SNR-8C   
          Serial Number          : CR310          
          Firmware Version       : MEENIX 7.3                    
          Date                   : 21-DEC-92  to  25-FEB-94 20:00:00 UT

      
          Type                   : TURBO-ROGUE SNR-8000
          Serial Number          : T164           
          Firmware Version       : TURBO 2.8                     
          Date                   : 26-FEB-94 00:00:10 UT  to  Present           


   4. GPS Antenna(s): 
      
          Type                   : DORNE-MARGOLIN B    
          Serial Number          : 114            
          Vertical Antenna Height: 0.162
          Antenna Ref. Point     : BASE OF CHOKE RING            
          Date                   : 15-MAY-92  to  Present  

     The antenna height is measured from the GPS monument to the antenna
     reference point (ARP) as it has been defined in the graphic (item 10).


   5. Local Site Tie(s):

 Monument  CDP   DOMES            Components          Source   Accur.   Date
 Inscrip.  No.    No.       dX        dY       dZ               mm    yy_mm_dd

 --------  ----  --------   ------   ------   ------  --------- ---   --------
    
     Differential coordinates are from the GPS monument to the reference and
     other monuments. The components are parallel to the XYZ-Axes of the 
     Global Geocentric Reference System ITRF (WGS-84).

     Accuracy: estimated accuracy of local survey-Millimeters.

   
   6. Frequency standard - Mark with  "X"  

          H-maser /   /   Cesium /  /   Rubidium / X /   Internal/  /
          Date                   : 15-MAY-92
 
   7. Collocation  ( "P" for permanent, "M" for mobile collocation)

          SLR   /   /   VLBI  /   /   DORIS  /   /   PRARE  /   /
          Other (specify)        :                     

   8. On site Agency Information 

          Agency                  : GEODETIC SURVEY OF CANADA               
          Contact                 : Robert Duval        
          Address                 : 615 Booth St., Ottawa, Ont.
                                    CANADA, K1A 0E9                  
          Telephone               : 613-947-2786   
          E-mail                  : duval@geod.emr.ca   
          Fax                     : 613-995-3215        


   9. Responsible Operations Agency:  see No. 8 
     

   10. Graphic(s) corresponding to antenna type on site


        Rogue:  DORNE MARGOLIN B  (Allen Osborne Design)

                      --------                          
                   /      +     \                   <-- 0.096 L2
                  |       +      |                  <-- 0.078 L1
   +--------------+--------------+--------------+   <-- 0.070 TCR
   |                                            | 
   |                                            | 
   |                                            | 
   |                                            | 
   +---------------------x----------------------+   <-- 0.000 ARP = BCR
                  |              |              
                  +--------------+                  <-- -0.011
                      | |  | |                     
   <--               0.351                     -->

    

     Acronyms:
    ARP: Antenna Reference Point
    L1 : L1 Phase Center             L2 : L2 Phase Center 
    TCR: Top of Choke ring           BCR: Bottom of Choke ring
    TGP: Top of Ground Plane         BGP: Bottom of Ground Plane
    TPA: Top of Preamplifier         BPA: Bottom of Preamplifier


   11. Hard copy information available

          Site map                : X
          Site Diagram            :    
          Horizon Mask            : X   
          Monument Description    : X
          Site pictures           : X