Network

   SANTA CRUZ DORIS site description form

0. Form

   Prepared by       : SIMB (DORIS installation and maintenance department)
   Date prepared     : 9/12/2008
   Report type       : UPDATE

1. Site location information

   Site name               : SANTA CRUZ
   Site DOMES number       : 42005
   Host agency             : Fundacion Charles Darwin
   City                    : Puerto Ayora
   State or province       : Santa Cruz, Galapagos
   Country                 : ECUADOR
   Tectonic plate (PB2002) : Nazca
   Geological information  : 
                             
   Geographical coordinates (ITRF) : 
          North Latitude   :  -0 deg 44' 33''
          East Longitude   : -90 deg 18' 16''
          Ellipsoid height :    7 m
   Approximate altitude    :   11 m

2. DORIS antenna and reference point information

2.1
   Four character ID        : SCRB
   Antenna model            : Starec 52291 type
   Antenna serial number    : 114
   IERS DOMES number        : 42005S001
   CNES/IGN number          : 420051
   CTDP number              : 247
   Date installed (dd/mm/yy): 03/04/2005
   Date removed (dd/mm/yy)  : 
   Antenna support type     : 30 cm sided very rigid metal tower, 1 m high
   Installed on             : Terrace of a one-storey building. Top of a 3 m 
                            : high load-bearing concrete pillar
   Height above ground mark : 1.428 m
   Ground mark type         : Domed brass screw
   Ground mark DOMES number : 42005
   Notes                    : 


3. DORIS beacons information

3.1
   Beacon serial number        : 28 19 032
   Beacon model                : 3.0
   USO serial number           : 3.269
   4 Char. ID of the REF point : SCRB
   Date installed (dd/mm/yy)   : 01/04/2005
   Date removed (dd/mm/yy)     : 


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

   Solution : ITRF2005 (tie to GPS "GLPS")
   Epoch    : 2000.0

   X = -33879.937 m     Y = -6377521.968 m     Z = -82085.574 m
   Sig X = 0.002 m        Sig Y = 0.002 m       Sig Z = 0.002 m

   VX = 0.0512 m/y        VY = 0.0021 m/y       VZ = 0.0099 m/y
   Sig VX = .0001 m/y    Sig VY = .0001 m/y   Sig VZ = .0001 m/y

5. IERS co-location information

5.1
   Instrument type       : GPS
   Status                : Permanent
   DOMES number of the
   instrument ref. point : 42005M002
   Notes                 : IGS station "GLPS"

6. Tide gauge co-location information

6.1
   Name         : Santa Cruz
   Location     : Puerto Ayora
   GLOSS number : 
   Distance     : 1.6 km
   Notes        : University of Hawaii tide gauge

7. Local site ties

7.1
   Point description      : IGS station GLPS
   DOMES number           : 42005M002

   Differential components from the current DORIS ref. point (SCRB)
   to the above point (in the ITRS) :
                   dX (m) : 78.025
                   dY (m) : 5.425
                   dZ (m) : -68.866
   Accuracy (m)           : 0.001
   Date measured          : April 2005
   Additional information : Survey by IGN-F

7.2
   Point description      : Puerto Ayora / tide gauge / bench mark UH 1
   DOMES number           : 

   Differential components from the current DORIS ref. point (SCRB)
   to the above point (in the ITRS) :
                   dX (m) : -930.201
                   dY (m) : 31.719
                   dZ (m) : -1389.245
   Accuracy (m)           : 0.002
   Date measured          : April 2005
   Additional information : Survey by IGN-F

7.3
   Point description      : Mark on terrace under the DORIS antenna
   DOMES number           : 

   Differential components from the current DORIS ref. point (SCRB)
   to the above point (in the ITRS) :
                   dX (m) : 0.008
                   dY (m) : 1.428
                   dZ (m) : 0.019
   Accuracy (m)           : 0.001
   Date measured          : 
   Additional information : 

8. Meteorological Instrumentation

8.1 Humidity sensor
   Model           : HMP45D
   Manufacturer    : VAISALA
   Accuracy        : +/- 3 percents
   Notes           : 

8.2 Pressure sensor
   Model           : PTU200 class B
   Manufacturer    : VAISALA
   Accuracy        : +/- 0.25 mb
   Height          :  the current DORIS ref. point (SCRB)
   Notes           : long term stability = +/- 0.1 mb/year

8.3 Temperature sensor
   Model           : HMP45D
   Manufacturer    : VAISALA
   Accuracy        : +/- 0.5 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 (DCT/ME/OT)
                       : 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