Subject: [IGSMAIL-0892] STJO / CORRECTIONS TO INFO
From: Robert Duval / NRCan
Date: Tue, 28 Feb 1995 5:40:31 PST

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IGS Electronic Mail      Tue Feb 28  5:40:31 PST 1995      Message Number 0892
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Author: Robert Duval / NRCan
Subject: STJO / CORRECTIONS TO INFO

ADVISORY
========

Site name          : ST JOHN'S               
4 char ID          : STJO    
Monu inscription   : 920000  
Domes number       : 40101M001 

Please note that an incomplete log file for STJO was transmitted to IGSCB
following the equipment and height changes on the 26-FEB-95 (DOY 57).
This has now been rectified and copy of the complete log follows.

You should also note that the data files stjo0571.95o and stjo0571.95n
originally submitted CDDIS and corresponding to the first 12 hour of day 057
(prior equipment and height changes) contained the wrong header information.
These two files have been re-transmitted to CDDIS with the correct (prior
change) header information today 28-feb-95 at12:15 UT.

We apologize for this confusion.

-- 
Robert Duval

Geodetic Survey Division               Tel:    (613) 947-2786
Natural Resources Canada (NRCan)       Fax:    (613) 995-3215
615 Booth Street                       E-mail: [email-masked]
Ottawa, Ontario
K1A 0E9

*****************************************************************************

   *****************************************
      ST JOHN'S (STJO)  SITE INFORMATION
   *****************************************

   0. Form

          Prepared by           : Robert Duval
          date                  : 28-MAR-95
          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 UT

          Type                   : TURBO-ROGUE SNR-8000
          Serial Number          : T164
          Firmware Version       : TURBO 2.8
          Date                   : 26-FEB-94 00:00 UT to 26-FEB-94 12:00 UT

          Type                   : TURBO-ROGUE SNR-8000
          Serial Number          : T230
          Firmware Version       : TURBO 3.0.32.2
          Date                   : 26-FEB-95 13:28 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  14-MAR-94 15:00 UT

          Type                   : DORNE-MARGOLIN T
          Serial Number          : 171
          Vertical Antenna Height: 0.003
          Antenna Ref. Point     : BOTTOM OF ANTENNA ASSEMBLY
          Date                   : 14-MAR-94 20:03 UT  to 26-FEB-95 12:00 UT

          Type                   : DORNE-MARGOLIN T
          Serial Number          : 366
          Vertical Antenna Height: 0.100
          Antenna Ref. Point     : BOTTOM OF ANTENNA ASSEMBLY
          Date                   : 26-FEB-95 13:28 UT  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                  : [email-masked]
          Fax                     : 613-995-3215

   9. Responsible Operations Agency:  see No. 8

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

    ANTENNA CONFIGURATION ON SITE SINCE 26-FEB-95:

    Type: DORNE MARGOLIN T

                                    ---  
     L2 Phase Center =>         /    +    \             <---------------+ 
     L1 Phase Center =>        |     +     |            <---------+     | 
              +----------------------------------------------+    |     | 
              |                                              |    |     |
              |                                              |    |     |
              |                                              |    |     |
              |                                              |    |     |
             ==================================================   |     |
                               |           |                      |     |
                               |    +-+    |                      |   0.228m
   Antenna Ref. Point (ARP) => +====| |====+   <--+               |     |
                               |           |      |             0.210m  |     
                               |           |      |               |     |
                               |           |      |               |     |
                      Mount => |           |    0.100m            |     |
                               |           |      |               |     |
                               |           |      |               |     |
                               |    +-+    |      |               |     |
 Monument =>  +----------------+====| |====+-----------------+ <--+-----+   
 Ref. Point   |                                              |            
              |                                              |
              |                                              |
              |               Concrete pillar                |
              |                                              |
              |                                              |
              |                                              | 

   OTHER ANTENNAS 

    Rogue:  DORNE MARGOLIN B  (Allen Osborne Design)

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

  <--                    0.351                     -->

             TurboRogue: DORNE MARGOLIN T

                         -----
                     /     +     \                        <--  0.128  L2
                    |      +      |                       <--  0.110  L1
  +--------------------------------------------------+    <--  0.102  TCR
  |                                                  |
  |                                                  |
  |                                                  |
  |                                                  |
+-+--------------------------------------------------+-+  <--  0.038
+-------------------+-------------+--------------------+  <--  0.035  BCR
                    |             |
                   =|             |
                    +------x------+                       <--  0.000  ARP

<--                      0.381                       -->

   ARP: Antenna Reference Point
   L1 : L1 Phase Center             L2 : L2 Phase Center
   TCR: Top of Choke ring           BCR: Bottom of choke ring

   11. Hard copy information available

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

[Mailed From: Robert Duval <[email-masked]>]