GUAM DORIS site description form

0. Form

   Prepared by       : SIMB (DORIS installation and maintenance department)
   Date prepared     : 13/07/2005
   Report type       : UPDATE

1. Site location information

   Site name               : GUAM
   Site DOMES number       : 50501
   Host agency             : USGS / GUAM OBSERVATORY
   City                    : Mount Santa Rosa
   State or province       : Guam
   Country                 : U.S.A. (Mariana Islands)
   Tectonic plate          : 
   Geological information  : 
                             
   Geographical coordinates (ITRF) : 
          North Latitude   :   13 deg 32' 23''
          East Longitude   :  144 deg 54' 50''
          Ellipsoid height :  291 m
   Approximate altitude    : 

2. DORIS antenna and reference point information

2.1
   Four character ID        : GUAB
   Antenna model            : Starec 52290 type
   Antenna serial number    : 22
   IERS DOMES number        : 50501S001
   CNES/IGN number          : 505011
   CTDP number              : 61
   Date installed (dd/mm/yy): 12/12/1993
   Date removed (dd/mm/yy)  : 10/04/2002
   Antenna support type     : Guyed 2 metre tower
   Installed on             : Reinforced concrete block
   Height above ground mark : 2.451 m
   Ground mark type         : Brass mark 20 mm diameter.
   Ground mark DOMES number : 50501M001
   Notes                    : 

3. DORIS beacons information

3.1
   Beacon serial number        : 86 33 041
   Beacon model                : 1.0
   USO serial number           : 1.536
   4 Char. ID of the REF point : GUAB
   Date installed (dd/mm/yy)   : 01/12/1993
   Date removed (dd/mm/yy)     : 24/05/1994

3.2
   Beacon serial number        : 86 33 030
   Beacon model                : 1.0
   USO serial number           : 1.555
   4 Char. ID of the REF point : GUAB
   Date installed (dd/mm/yy)   : 13/06/1994
   Date removed (dd/mm/yy)     : 19/02/2001

3.3
   Beacon serial number        : 86 33 036
   Beacon model                : 1.0
   USO serial number           : 1.361
   4 Char. ID of the REF point : GUAB
   Date installed (dd/mm/yy)   : 21/02/2001
   Date removed (dd/mm/yy)     : 23/07/2001

3.4
   Beacon serial number        : 86 27 019
   Beacon model                : 1.0
   USO serial number           : 3.161
   4 Char. ID of the REF point : GUAB
   Date installed (dd/mm/yy)   : 25/07/2001
   Date removed (dd/mm/yy)     : 26/07/2001

3.5
   Beacon serial number        : 86 27 018
   Beacon model                : 1.0
   USO serial number           : 1.479
   4 Char. ID of the REF point : GUAB
   Date installed (dd/mm/yy)   : 18/01/2002
   Date removed (dd/mm/yy)     : 10/04/2002


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

   Solution : ITRF2000
   Epoch    : 1997.0

   X = -5075278.513 m     Y = 3565110.796 m     Z = 1483590.931 m
   Sig X = 0.004 m         Sig Y = 0.005 m         Sig Z = 0.004 m

   VX = 0.0042 m/y        VY = 0.0105 m/y        VZ = 0.0030 m/y
   Sig VX = 0.0009 m/y     Sig VY = 0.0007 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 : 50501M002
   Notes                 : 

6. Tide Gauge colocation information

6.1
   Name         : Apra harbour
   Location     : Guam
   GLOSS number : 149
   Distance     : 31 km
   Notes        : 

7. Local site ties

7.1
   Point description      : Brass Mark under the DORIS antenna
   DOMES number           : 50501M001

   Differential components from the current DORIS ref. point (GUAB)
   to the above point (in the ITRS) :
                   dX (m) : 1.950
                   dY (m) : -1.370
                   dZ (m) : -0.574
   Accuracy (m)           : 0.002
   Date measured          : 
   Additional information : 

7.2
   Point description      : ROSA 1991 : mark in rock
   DOMES number           : 

   Differential components from the current DORIS ref. point (GUAB)
   to the above point (in the ITRS) :
                   dX (m) : 3.357
                   dY (m) : -8.923
                   dZ (m) : 23.931
   Accuracy (m)           : 0.002
   Date measured          : 
   Additional information : 

7.3
   Point description      : IGS station mark : "GUAM"
   DOMES number           : 50501M002

   Differential components from the current DORIS ref. point (GUAB)
   to the above point (in the ITRS) :
                   dX (m) : 3965.701
                   dY (m) : 3252.703
                   dZ (m) : 5313.389
   Accuracy (m)           : 0.005
   Date measured          : 
   Additional information : 

8. Meteorological Instrumentation

8.1 Humidity sensor
   Model           : MUC.1 + transmitter M-UTN3
   Manufacturer    : SPSI
   Accuracy        : 
   Notes           : 

8.2 Pressure sensor
   Model           : M-PaTN.8
   Manufacturer    : SPSI
   Accuracy        : 
   Height          : -0.74 m above the current DORIS ref. point (GUAB)
   Notes           : 

8.3 Temperature sensor
   Model           : Constructed for DORIS beacons
   Manufacturer    : CEIS-TM
   Accuracy        : 
   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