LAZA Site Information

     IGEF-UNAM Instituto de Geofisica. 

     Department of Seismology  



0.   Form



     Prepared by (full name)  : Jose Antonio Santiago Santiago

     Date Prepared            : 19-SEP-2006

     Report Type              : 

     Prepared Using           : 





1.   Site Identification of the GPS Monument



     Site Name                : LAZARO

     Four Character ID        : LAZA

     Monument Inscription     : 

     IERS DOMES Number        : Leica, no # 

     CDP Number               : (XXXX)               

     Monument Description     : STEEL ROD

       Height of the Monument : (m)

       Monument Foundation    : CONCRETE PILLAR

       Foundation Depth       : (m)

     Marker Description       : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc)

     Date Installed           : 14-SEP-2006 23:00 UT

     Geologic Characteristic  : 

      Bedrock Type            : 

      Bedrock Condition       : 

      Fracture Spacing        : 

     Notes                    : 

     Additional Information   : Located in Chilpancingo, Guerrero  

                             

                           





2.   Site Location Information



     City or Town             : Chilpancingo

     State or Province        : Guerrero

     Country                  : Mexico

     Tectonic Plate           : NOAM

     Approximate Position     

       X coordinate (m)       : 

       Y coordinate (m)       : 

       Z coordinate (m)       : 

       Latitude (deg)         : 17 31.1598301 N

       Longitude (deg)        : 099 29.1969226 W 

       Elevation (m)          : 1190.9202 m 

     Additional Information   :  

                              : Coordinate system used is (WGS84).





3.   GPS Receiver Information



3.1  Receiver Type            : LEICA RS500

     Serial Number            : 82151

     Firmware Version         : 5.00

     Date Installed           : 14-SEP-2006 

     Date Removed             : 

     Satellite System         : GPS

     Temperature Stabiliz.    : none

     Additional Information   : Antenna cable ~10m

    			      : 256 MB Memory 

			      





3.x  Receiver Type            : LEICA GRX1200

     Serial Number            : 4521174

     Firmware Version         : 4.03 ?

     Date Installed           : 2010-04-27T20:00Z

     Date Removed             : 

     Satellite System         : (GPS/GLONASS/GPS+GLONASS)

     Temperature Stabiliz.    : (none or tolerance in degrees C)

     Additional Information   : CF 256 Mb





4.   GPS Antenna Information



4.1  Antenna Type             : LEICA CHOKE RING AT504

     Serial Number            : 1225

     Antenna Height (m)       : m aprox. to bottom of antenna

     Antenna Reference Point  : 

     Degree Offset from North : 

     Antenna Radome Type      : LEICA radome

     Date Installed           : 14-SEP-2006 

     Date Removed             : (dd-MMM-yyyy hh:mm UT)

     Additional Information   : Monument is drilled-braced type, installed in a reinforced

			      : concrete corner on the top of a brick station building

                              : Coordinated system used is (WGS84)



4.x  Antenna Type             : 

     Serial Number            : 

     Antenna Height (m)       : (m)

     Antenna Reference Point  : (ARP/BCR/BPA)

     Degree Offset from North : 

     Antenna Radome Type      : 

     Date Installed           : (dd-MMM-yyyy hh:mm UT)

     Date Removed             : (dd-MMM-yyyy hh:mm UT)

     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)    : 525-55-5622-4138 ext. 135

       Telephone (secondary)  :        5622-4127

       Fax                    :        5616-2547

       E-mail                 : vladi@servidor.unam.mx

     Secondary Contact        

       Contact Name           : Jose Antonio Santiago Santiago

       Telephone (primary)    : 525-55-5622-4104

       Telephone (secondary)  : 

       Fax                    : 

       E-mail                 : santiago@geofisica.unam.mx

     Additional Information   : 







11.  More Information



     URL For More Information : 

http://tlacaelel.igeofcu.unam.mx/~vladimir/gpsred/gpsred.html 

http://tlacaelel.igeofcu.unam.mx/~vladimir/gpsred/lazaro/lazagps.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

                                 



LEIAT504

L1/L2 Dorne Margolin antenna with chokerings

(designed after DORNE MARGOLIN T) 

                       +-------+                          <-- 0.1393

                     /     +     \                        <-- 0.1282 L2

                    |      +      |                       <-- 0.1093 L1

  +-----------------+-------------+------------------+    <-- 0.1020 TCR

  |                                                  | 

  |                                                  |

  |                                                  |

  |                                                  |

+-+--------------------------------------------------+-+  <-- 0.0380

+-------------------+-------------+--------------------+  <-- 0.1020 BCR

                    |             |

                    |             |

                    +------x------+                       <-- 0.000  BPA=ARP



<--                      0.3794                      -->





   ARP: Antenna Reference Point

   L1 : L1 Phase Center                   L2 : L2 Phase Center

   TCR: Top of Chokering                  BCR: Bottom of Chokering

   BPA: Bottom of Preamplifier