ST JOHN'S DORIS site description form

0. Form

   Prepared by       : SIMB (DORIS installation and maintenance department)
   Date prepared     : 20/07/2005
   Report type       : UPDATE

1. Site location information

   Site name               : ST JOHN'S
   Site DOMES number       : 40101
   Host agency             : NRCan
   City                    : St John's
   State or province       : Newfoundland
   Country                 : CANADA
   Tectonic plate          : 
   Geological information  : 
                             
   Geographical coordinates (ITRF) : 
          North Latitude   :   47 deg 35' 43''
          East Longitude   :  -52 deg 40' 41''
          Ellipsoid height :  153 m
   Approximate altitude    : 

2. DORIS antenna and reference point information

2.1
   Four character ID        : STJB
   Antenna model            : Starec 52291 type
   Antenna serial number    : 63
   IERS DOMES number        : 40101S002
   CNES/IGN number          : 401011
   CTDP number              : 89
   Date installed (dd/mm/yy): 27/09/1999
   Date removed (dd/mm/yy)  : 
   Antenna support type     : Concrete pillar
   Installed on             : Rock outcrop. 4 rods reinforcing the pillar were 
                            : drilled 1 meter deep into the rock.
   Height above ground mark : 0.520 m
   Ground mark type         : Domed stainless steel mark 12 mm diameter
   Ground mark DOMES number : 40101M002
   Notes                    : Starec 52291 type antenna number 55 removed on 
                            : 06/06/2000.


3. DORIS beacons information

3.1
   Beacon serial number        : 98 45 109
   Beacon model                : 2.0
   USO serial number           : 3.307
   4 Char. ID of the REF point : STJB
   Date installed (dd/mm/yy)   : 27/09/1999
   Date removed (dd/mm/yy)     : 30/03/2005

3.2
   Beacon serial number        : 28 19 047
   Beacon model                : 3.0
   USO serial number           : 3.377
   4 Char. ID of the REF point : STJB
   Date installed (dd/mm/yy)   : 01/04/2005
   Date removed (dd/mm/yy)     : 


4. ITRF coordinates and velocities of the current DORIS ref. point (STJB)

   Solution : ITRF2000 (derived from the connection with STJO)
   Epoch    : 1997.0

   X = 2612607.953 m     Y = -3426816.077 m     Z = 4686764.290 m
   Sig X = 0.001 m         Sig Y = 0.001 m         Sig Z = 0.002 m

   VX = -0.0172 m/y        VY = -0.0030 m/y        VZ = 0.0078 m/y
   Sig VX = 0.0003 m/y     Sig VY = 0.0004 m/y     Sig VZ = 0.0005 m/y

5. IERS colocation information

5.1
   Instrument type       : GPS
   Status                : Permanent
   DOMES number of the
   instrument ref. point : 40101M001
   Notes                 : 

6. Tide Gauge colocation information

6.1
   Name         : St John's
   Location     : St John's
   GLOSS number : 223
   Distance     : 3,6 km
   Notes        : Tie measured 09/1999

7. Local site ties

7.1
   Point description      : DORIS domed brass mark on concrete pillar
   DOMES number           : 40101M002

   Differential components from the current DORIS ref. point (STJB)
   to the above point (in the ITRS) :
                   dX (m) : -0.212
                   dY (m) : 0.279
                   dZ (m) : -0.384
   Accuracy (m)           : 0.001
   Date measured          : Sept. 1999
   Additional information : Survey by IGN-F & NRCan

7.2
   Point description      : Concrete pillar : IGS monument STJO
   DOMES number           : 40101M001

   Differential components from the current DORIS ref. point (STJB)
   to the above point (in the ITRS) :
                   dX (m) : 23.276
                   dY (m) : 9.051
                   dZ (m) : -6.485
   Accuracy (m)           : 0.001
   Date measured          : Sept. 1999
   Additional information : Survey by IGN-F & NRCan

7.3
   Point description      : Mobile VLBI antenna support: mark CDP 7625
   DOMES number           : 40101M003

   Differential components from the current DORIS ref. point (STJB)
   to the above point (in the ITRS) :
                   dX (m) : -62.264
                   dY (m) : -62.681
                   dZ (m) : -8.209
   Accuracy (m)           : 0.001
   Date measured          : 2003
   Additional information : Survey by NRCan

8. Meteorological Instrumentation

8.1 Humidity sensor
   Model           : SMP35D
   Manufacturer    : VAISALA
   Accuracy        : +/- 5 percents
   Notes           : 

8.2 Pressure sensor
   Model           : PTB202
   Manufacturer    : VAISALA
   Accuracy        : +/- 0.5 mb
   Height          : +2.3 m above the current DORIS ref. point (STJB)
   Notes           : long term stability = +/- 0.2 mb/year

8.3 Temperature sensor
   Model           : SMP35D
   Manufacturer    : VAISALA
   Accuracy        : +/- 0.25 deg C
   Notes           : 


9. DORIS network contacts

   Primary contact:

   Name                : Herve FAGARD
   Agency              : Institut Geographique National
   Mailing address     : Service de Geodesie et de Nivellement
                       : 2 Avenue PASTEUR
                       : 94165 SAINT-MANDE CEDEX    FRANCE
   Telephone           : + 33 1 43 98 81 48
   Fax                 : + 33 1 43 98 84 50
   E-mail              : herve (.) fagard (@) ign.fr

   Secondary contact:

   Name                : Francois BOLDO
   Agency              : Institut Geographique National
   Mailing address     : CNES (ED/AL/MA)
                       : 18 Avenue Edouard BELIN
                       : 31401 TOULOUSE Cedex    FRANCE
   Telephone           : + 33 5 61 27 40 72
   Fax                 : + 33 5 61 28 25 95
   E-mail              : Simb.Doris@cnes.fr