Subject: [IGSMAIL-2024] Updated equipment for station YELL
From: Peter Taylor / NRCan
Date: Mon, 21 Sep 1998 7:46:45 PDT

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IGS Electronic Mail      Mon Sep 21  7:46:45 PDT 1998      Message Number 2024
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Author: Peter Taylor / NRCan
Subject: Updated equipment for station YELL

ADVISORY:

The station log for Yellowknife has been updated to show that the
Hydrogen Maser was returned into operation on April 24 / 1998.
Our thanks to Jim Ray at USNO for pointing out the discrepancy.
Please find attached a revised log.

     YELL Site Information Form
     International GPS Service for Geodynamics

0.   Form

     Prepared by (full name)  : Peter Taylor
     Date Prepared            : 21-Sep-1998
     Report Type              : UPDATE
     Prepared Using           :

1.   Site Identification of the GPS Monument

     Site Name                : Yellowknife
     Four Character ID        : YELL
     Monument Inscription     : 889201
     IERS DOMES Number        : 40127M003
     CDP Number               : n/a
     Date Installed           : 21-Jan-1991
     Geologic Characteristic  : BEDROCK
       Bedrock Type           : (IGNEOUS/METAMORPHIC/SEDIMENTARY)
       Bedrock Condition      : (FRESH/JOINTED/WEATHERED)
       Fracture Spacing       : 10-50 cm
       Notes                  :
     Additional Information   : The GPS reference mark consists of a brass plate
                              : with a forced centering stainless steel bolt
                              : embedded on top of a 1.8 metre high concrete
                              : pier, 40 cm in diameter.  The concrete  pier is
                              : anchored to exposed bedrock by steel reinforcing
                              : bars to a depth of 50 cm.

2.   Site Location Information

     City or Town             : Yellowknife
     State or Province        : North West Territories
     Country                  : Canada
     Tectonic Plate           : North American
     Approximate Position
       X coordinate (m)       : -1224452.4
       Y coordinate (m)       : -2689216.0
       Z coordinate (m)       :  5633638.2
       Latitude (deg)         :  62.4809 N
       Longitude (deg)        : 114.4807 W
       Elevation (m)          : 181.0
     Additional Information   : Located at Geological Survey of Canada (NRCan)
                              : Seismic Observatory

3.   GPS Receiver Information

3.1  Receiver Type            : ROGUE SNR-8
     Serial Number            : R116
     Firmware Version         : Meenix ?
     Date Installed           : 21-JAN-1991
     Date Removed             : 19-MAR-1992
     Additional Information   :

3.2  Receiver Type            : MINI-ROGUE SNR-8C
     Serial Number            : CR309/DIS
     Firmware Version         : Meenix 7.?
     Date Installed           : 20-MAR-1992
     Date Removed             : 18-DEC-1992
     Additional Information   :

3.3  Receiver Type            : MINI-ROGUE SNR-8C
     Serial Number            : CR309/DIS
     Firmware Version         : Meenix 7.3
     Date Installed           : 19-DEC-1992
     Date Removed             : 16-MAR-1994 18:00 UT
     Additional Information   :

3.4  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T230
     Firmware Version         : Turbo 2.8.32.1
     Date Installed           : 16-MAR-1994 20:00 UT
     Date Removed             : 11-MAY-1994 14:32 UT
     Additional Information   :

3.5  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T302
     Firmware Version         : Turbo 2.8.32.1
     Date Installed           : 11-MAY-1994 14:52 UT
     Date Removed             : 24-OCT-1995 00:00 UT
     Additional Information   :

3.6  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T302
     Firmware Version         : Turbo 3.2.32.1
     Date Installed           : 24-OCT-1995 00:00 UT
     Date Removed             : 19-DEC-1996 00:00 UT
     Additional Information   :

3.7  Receiver Type            : ROGUE SNR-12 RM
     Serial Number            : T203
     Firmware Version         : Turbo 3.2.32.5X
     Date Installed           : 19-DEC-1996 00:00 UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   :

4.   GPS Antenna Information

4.1  Antenna Type             : DORNE MARGOLIN B
     Serial Number            : 110
     Antenna Height (m)       : 0.111
     Antenna Reference Point  : BCR
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 21-JAN-1991
     Date Removed             : 19-MAR-1992
     Additional Information   :

4.2  Antenna Type             : DORNE MARGOLIN B
     Serial Number            : 117
     Antenna Height (m)       : 0.117
     Antenna Reference Point  : BCR
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 20-MAR-1992
     Date Removed             : 16-MAR-1994 18:00 UT
     Additional Information   :

4.3  Antenna Type             : DORNE MARGOLIN T
     Serial Number            : 273
     Antenna Height (m)       : 0.082
     Antenna Reference Point  : ARP
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 16-MAR-1994 20:00 UT
     Date Removed             : 13-OCT-1994 21:52 UT
     Additional Information   :

4.4  Antenna Type             : DORNE MARGOLIN T
     Serial Number            : 273
     Antenna Height (m)       : 0.100
     Antenna Reference Point  : ARP
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 14-OCT-1994 00:15 UT
     Date Removed             : 22-AUG-1996 00:00 UT
     Additional Information   :

4.5  Antenna Type             : DORNE MARGOLIN T
     Serial Number            : 285
     Antenna Height (m)       : 0.100
     Antenna Reference Point  : ARP
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 22-AUG-1996 00:00 UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   :

5.   Local Site Ties

5.1  Monument Name            : 829098 (CGDB Unique Number)
     Site Ref CDP Number      : 7285
     Site Ref Domes Number    : 40127M001
     Differential Components from GPS Mark to Site Reference (ITRS)
       dx (m)                 : 327.855
       dy (m)                 : -314.587
       dz (m)                 : -82.910
     Accuracy (mm)            : 2
     Date Measured            : 13-DEC-1993
     Additional Information   : Source/GSD/M93-301

5.2  Monument Name            : 909012 (CGDB Unique Number)
     Site Ref CDP Number      : 7296
     Site Ref Domes Number    : 40127M004
     Differential Components from GPS Mark to Site Reference (ITRS)
       dx (m)                 : 52.933
       dy (m)                 : -57.155
       dz (m)                 : -17.996
     Accuracy (mm)            : 2
     Date Measured            : 12-DEC-1993
     Additional Information   : Source/GSD/M93-301

6.   Frequency Standard

6.1  Standard Type            : RUBIDIUM
       Frequency              :
       Effective Dates        : 19-DEC-1992 - 02-AUG-1994
       Notes                  :

6.2  Standard Type            : HMASER
       Frequency              :
       Effective Dates        : 02-AUG-1994 - 12-FEB-1998
       Notes                  :

6.3  Standard Type            : RUBIDIUM
       Frequency              :
       Effective Dates        : 12-FEB-1998 - 24-APR-1998
       Notes                  : 

6.4  Standard Type            : HMASER
       Frequency              :
       Effective Dates        : 24-APR-1998
       Notes		      : Time of change 19:30 UT	

7.   Collocation Information

7.1  Instrumentation Type     : VLBI
       Status                 : PERMANENT
       Effective Dates        : (dd-MMM-yyyy - dd-MMM-yyyy)
       Notes                  :

7.2  Instrumentation Type     : DORIS
       Status                 : PERMANENT
       Effective Dates        : 21-JAN-1991 - dd-MMM-yyyy
       Notes                  :

8.   Meteorological Instrumentation

8.1  Humidity Sensor Model    :
       Manufacturer           :
       Data Frequency         :
       Accuracy (% rel h)     : (% rel h)
       Effective Dates        : (dd-MMM-yyyy - dd-MMM-yyyy)
       Notes                  :

8.2  Pressure Sensor Model    :
       Manufacturer           :
       Data Frequency         :
       Accuracy (mbar)        : (mbar)
       Height Diff to GPS (m) : (m)
       Effective Dates        : (dd-MMM-yyyy - dd-MMM-yyyy)
       Notes                  :

8.3  Temperature Sensor Model :
       Manufacturer           :
       Data Frequency         :
       Accuracy (deg C)       : (deg C)
       Effective Dates        : (dd-MMM-yyyy - dd-MMM-yyyy)
       Notes                  :

8.4  Other Instrumentation    : n/a

9.   On-Site, Point of Contact Agency Information

     Agency                   : Geodetic Survey of Canada
     Mailing Address          : 615 Booth St., Ottawa, Ontario
                              : CANADA, K1A 0E9
     Primary Contact
       Contact Name           : Robert Duval
       Telephone (primary)    : 613-947-2786
       Telephone (secondary)  :
       Fax                    : 613-995-3215
       E-mail                 : [email-masked]
     Secondary Contact
       Contact Name           : ACS Operations
       Telephone (primary)    : 613-992-1292
       Telephone (secondary)  : 613-995-2613
       Fax                    : 613-995-3215
       E-mail                 : [email-masked]
     Additional Information   :

10.  Responsible Agency       : same as 9. above.

11.  More Information

     URL for More Information :
     Hardcopy on File
       Site Map               : Y
       Site Diagram           : Y
       Horizon Mask           : Y
       Monument Description   : Y
       Site Pictures          : Y
     Additional Information   :
     Antenna Graphics with Dimensions

    ANTENNA CONFIGURATION ON SITE SINCE 14-OCT-94:

    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

[Mailed From: Peter Taylor <[email-masked]>]