Subject: [IGSMAIL-0904] STJO TRACKING STATUS (retransmission)
From: Robert Duval / NRCan
Date: Tue, 7 Mar 1995 12:15:58 PST

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IGS Electronic Mail      Tue Mar  7 12:15:58 PST 1995      Message Number 0904
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Author: Robert Duval / NRCan
Subject: STJO TRACKING STATUS (retransmission)

ADVISORY
========

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

Following the problems at STJO last week some of the equipment have been
replaced. The changes are indicated in the log that follows. Note that tracking
has resumed normally since 00:00 UT on 03-MAR-95 (DOY 62)  except for a 3 hour
gap during that day when additional testing was done and corresponding data
deleted.

You should also note that RINEX header information in the files transmitted to
CDDIS for 03-MAR-95 to 05-MAR-95 were not representative of the equipment on
site. New files with revised header information have been transmitted to CDDIS
on 06-MAR-95  21:30 UT. The antenna height has not been affected in these
latest changes, it remains at .100 m since 26-FEB-95.

I hope this information gets through since it appears that there is some
problems with IGSMAIL; a previous transmission of this information as well as
other updates on STJO in the last few days didn't got through by IGSMAIL.

-- 
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                  : 06-MARS-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-95 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 02-MAR-95 15:00 UT

          Type                   : TURBO-ROGUE SNR-8000
          Serial Number          : T161
          Firmware Version       : TURBO 3.0.32.2
          Date                   : 02-MAR-95 15:00 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  02-MAR-95 21:50 UT

          Type                   : DORNE-MARGOLIN T
          Serial Number          : 171
          Vertical Antenna Height: 0.100
          Antenna Ref. Point     : BOTTOM OF ANTENNA ASSEMBLY
          Date                   : 02-MAR-95 21:56 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]>]