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