COYU Site Information
     IGEF-UNAM Instituto de Geofisica. 
     Department of Seismology  

0.   Form

     Prepared by (full name)  : Jose Antonio Santiago Santiago
     Date Prepared            : JUN-2006 / UPDATE AUG-2006
     Report Type              : 
     Prepared Using           : 


1.   Site Identification of the GPS Monument

     Site Name                : COYUCA
     Four Character ID        : COYU
     Monument Inscription     : 00000000-16873-2002a
     IERS DOMES Number        : SCIGN
     CDP Number               : (XXXX)               
     Monument Description     : TRIPODE
       Height of the Monument : (m)
       Monument Foundation    : STEEL RODS
       Foundation Depth       : (m)
     Marker Description       : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc)
     Date Installed           : 25-MAR-2003 
     Geologic Characteristic  : BOULDER
      Bedrock Type            : Granit
      Bedrock Condition       : 
      Fracture Spacing        : 
     Notes                    : 
     Additional Information   :   
                             
                           
2.   Site Location Information

     City or Town             : COYUCA DE BENITEZ
     State or Province        : Guerrero
     Country                  : Mexico
     Tectonic Plate           : NA
     Approximate Position (ITRF)
       X coordinate (m)       : -1067921.234
       Y coordinate (m)       : -6006775.875
       Z coordinate (m)       : 1853739.2443
       Latitude (N is +)      : +170030.28
       Longitude (E is +)     : -1000451.82
       Elevation (m,ellips.)  : 54
     Additional Information   :  
                              

3.   GPS Receiver Information
			      
3.1  Receiver Type            : ASHTECH UZ-12
     Satellite System         : GPS
     Serial Number            : ZR520021807
     Firmware Version         : CJ12
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 24-MAR-2003
     Date Removed             : 13-MAY-2003
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)


3.2  Receiver Type            : ASHTECH UZ-12
     Satellite System         : GPS
     Serial Number            : ZR520021810
     Firmware Version         : CJ12
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 22-MAY-2003
     Date Removed             : 29-MAY-2003
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)



3.3  Receiver Type            : ASHTECH UZ-12
     Satellite System         : GPS
     Serial Number            : ZR520021807
     Firmware Version         : CJ12
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 13-JUN-2003
     Date Removed             : 10-SEP-2003
     Temperature Stabiliz.    : none
     Additional Information   : UPLOAD firmware cj50 - 03-JUL-2003



3.3bis  Receiver Type         : LEICA SR520
     Satellite System         : GPS
     Serial Number            : 20169
     Firmware Version         : 4.11
     Elevation Cutoff Setting : 
     Date Installed           : 03-JUL-2003
     Date Removed             : 10-SEP-2003
     Temperature Stabiliz.    : 
     Additional Information   : SPLITTER to connect LEICA y ASHTECH receivers



3.4  Receiver Type            : ASHTECH UZ-12
     Satellite System         : GPS
     Serial Number            : ZR520021810
     Firmware Version         : CN00
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 10-SEP-2003
     Date Removed             : 02-APR-2005
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)


3.5  Receiver Type            : ASHTECH UZ-12
     Satellite System         : GPS
     Serial Number            : ZR520021807
     Firmware Version         : CN00
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 02-APR-2005
     Date Removed             : 17-MAY-2005
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.6  Receiver Type            : LEICA SR520
     Satellite System         : GPS
     Serial Number            : 20147
     Firmware Version         : 4.20
     Elevation Cutoff Setting : 
     Date Installed           : 17-MAY-2005
     Date Removed             : 02-MAR-2006
     Temperature Stabiliz.    : 
     Additional Information   : (multiple lines)

3.7  Receiver Type            : ASHTECH UZ-12
     Satellite System         : GPS
     Serial Number            : ZR520021810
     Firmware Version         : 
     Elevation Cutoff Setting : 
     Date Installed           : 02-MAR-2006
     Date Removed             : 
     Temperature Stabiliz.    : 
     Additional Information   : (multiple lines)

3.x  Receiver Type            : 
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : 
     Firmware Version         : 
     Elevation Cutoff Setting : 
     Date Installed           : 
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)



4.   GPS Antenna Information

4.1  Antenna Type             : ASH701945E_M    SCIT
     Serial Number            : cr62002303
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : .0083
     Marker->ARP North Ecc(m) :
     Marker->ARP East Ecc(m)  :
     Alignment from True N    :  deg
     Antenna Radome Type      : SCIGN - SCIT
     Radome Serial Number     : N/A
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2003-03-25
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)

4.x  Antenna Type             : (A20, from rcvr_ant.tab; see instructions)
     Serial Number            : (A*, but note the first A5 is used in SINEX)
     Antenna Reference Point  : (BPA/BCR/XXX from "antenna.gra"; see instr.)
     Marker ->ARP Up Ecc. (m) : (F8.4)
     Marker ->ARP North Ecc(m): (F8.4)
     Marker ->ARP East Ecc(m) : (F8.4)
     Alignment from True N    : (deg; + is clockwise/east)
     Antenna Radome Type      : (A4 from rcvr_ant.tab; see instructions)
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)


6.   Frequency Standard

6.1  Standard Type            : INTERNAL
       Input Frequency        :
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

6.x  Standard Type            : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc)
       Input Frequency        : (if external)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)


11.   On-Site, Point of Contact Agency Information

     Agency                   : Departamento de Sismologia
     Mailing Address          : Instituto de Geofisica - UNAM
                              : Universidad Nacional Autonoma de Mexico 
                              : Coyoacan, 04510 Mexico, D.F.
     Primary Contact          
       Contact Name           : Dr. Vladimir Kostoglodov
       Telephone (primary)    : 5622-4126
       Telephone (secondary)  : 5622-4127
       Fax                    : 5616-2547
       E-mail                 : vladi@servidor.unam.mx
     Secondary Contact        
       Contact Name           : Jose Antonio Santiago Santiago
       Telephone (primary)    : 5622-4126
       Telephone (secondary)  : 5622-4127
       Fax                    : 5616-2547
       E-mail                 : santiago@geofisica.unam.mx
     Additional Information   : santiago@ssn.ssn.unam.mx



11.  More Information

     URL For More Information : 
http://tlacaelel.igeofcu.unam.mx/~vladimir/gpsred/gpsred.html 
http://tlacaelel.igeofcu.unam.mx/~vladimir/gpsred/coyuca/coyugps.html 
     Hardcopy on File         
       Site Map               : (Y)
       Site Diagram           : (Y)
       Horizon Mask           : (Y)
       Monument Description   : (Y)
       Site Pictures          : (Y)
     Additional Information   : (multiple lines)


     Antenna Graphics with Dimensions
                              

ASH701945B_M
ASH701945C_M
ASH701945D_M
ASH701945E_M

                         +-------+
                       /     +     \                        <--  0.1280 L2
                      |      +      |                       <--  0.1100 L1
    +-----------------+-------------+------------------+    <--  0.1006 TCR
    |                                                  |
    |                                                  |
    |                                                  |
    |                                                  |
  +-+--------------------------------------------------+-+  <--  0.0376
  +-------------------+-------------+--------------------+  <--  0.0346 BCR
                      |             |
                      |             |
                      +------x------+                       <--  0.0000 BPA=ARP

  <--                      0.3794                      -->

   ARP: Antenna Reference Point
   L1 : L1 Phase Center                   L2 : L2 Phase Center
   TCR: Top of Chokering                  BCR: Bottom of Chokering
   TGP: Top of Ground Plane               BGP: Bottom of Ground Plane
   TPA: Top of Preamplifier               BPA: Bottom of Preamplifier
   TOP: Top of Pole