SANTA CRUZ DORIS site description form 0. Form Prepared by : SIMB (DORIS installation and maintenance department) Date prepared : 28/08/2023 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 : Isla Santa Cruz, Galapagos Country : ECUADOR Tectonic plate : NAZC Geological information : Geographical coordinates (ITRF) : North Latitude : 0 deg 44' 33'' East Longitude : -90 deg 18' 16'' Ellipsoid height : 6 m Approximate altitude : 10 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 DORIS SSALTO number : 247 Date installed (dd/mm/yy): 03/04/2005 Date removed (dd/mm/yy) : 29/08/2019 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 : 42005M003 Notes : 2.2 Four character ID : SCRC Antenna model : Starec C type Antenna serial number : 186 IERS DOMES number : 42005S002 CNES/IGN number : 420051 DORIS SSALTO number : 2247 Date installed (dd/mm/yy): 02/09/2019 Date removed (dd/mm/yy) : 15/06/2023 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 : 1.427 m Ground mark type : Domed brass screw Ground mark DOMES number : 42005M003 Notes : 2.3 Four character ID : SCSC Antenna model : Starec C type Antenna serial number : 213 IERS DOMES number : 42005S003 CNES/IGN number : 420051 DORIS SSALTO number : 3247 Date installed (dd/mm/yy): 16/06/2023 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 : 1.430 m Ground mark type : Domed brass screw Ground mark DOMES number : 42005M003 Notes : 3. DORIS beacons information 3.1 Beacon serial number : 2819032 Beacon model : 3.0 USO serial number : 3.269 4 Char. ID of the REF point : SCRC Date installed (dd/mm/yy) : 02/04/2005 Date removed (dd/mm/yy) : 18/06/2009 3.2 Beacon serial number : 1200089 Beacon model : 3.1 USO serial number : 3.1036 4 Char. ID of the REF point : SCRC Date installed (dd/mm/yy) : 02/09/2019 Date removed (dd/mm/yy) : 15/06/2023 3.3 Beacon serial number : 22154080I Beacon model : 4.0 USO serial number : 4.P0042 4 Char. ID of the REF point : SCSC Date installed (dd/mm/yy) : 16/06/2023 Date removed (dd/mm/yy) : 4. ITRF coordinates and velocities of the current DORIS ref. point (SCSC) Solution : dpod2014_059 Epoch : 2000.0 X = -33879.940 m Y = -6377521.954 m Z = -82085.574 m Sig X = 0.001 m Sig Y = 0.001 m Sig Z = 0.001 m VX = 0.0506 m/y VY = 0.0006 m/y VZ = 0.0108 m/y Sig VX = m/y Sig VY = m/y Sig VZ = m/y 5. IERS colocation information 5.1 Instrument type : GNSS Status : Permanent DOMES number of the instrument ref. point : 42005M002 Notes : IGS station "GLPS" 6. Tide Gauge colocation information 6.1 Name : Santa Cruz Location : Puerto Ayora GLOSS number : Distance : Notes : PSMSL Id: 1472 7. Local site ties 7.1 Point description : IGS station (GLPS) DOMES number : 42005M002 Differential components from the DORIS ref. point (SCSC) to the above point (in the ITRS) : dX (m) : 78.024 dY (m) : 5.424 dZ (m) : -68.865 Accuracy (m) : 0.001 Date measured : 16/06/2023 Additional information : Survey by IGN-F 7.2 Point description : Mark on terrace under the DORIS antenna DOMES number : 42005M003 Differential components from the DORIS ref. point (SCSC) to the above point (in the ITRS) : dX (m) : 0.007 dY (m) : 1.429 dZ (m) : 0.019 Accuracy (m) : 0.001 Date measured : 15/06/2023 Additional information : Survey by IGN-F 7.3 Point description : DORIS Antenna reference point (SCRC) DOMES number : 42005S002 Differential components from the DORIS ref. point (SCSC) to the above point (in the ITRS) : dX (m) : 0.001 dY (m) : 0.002 dZ (m) : 0.000 Accuracy (m) : 0.001 Date measured : 15/06/2023 Additional information : Survey by IGN-F 8. Meteorological Instrumentation 8.1 Humidity sensor Model : AM2315 Manufacturer : AOSONG Accuracy : +/- 2 percents Notes : 8.2 Pressure sensor Model : BMP280 Manufacturer : Bosch Accuracy : +/- 0.12 hPa, equiv. to +/- 1 m Height : m below the current DORIS ref. point (SCSC) Notes : Long term stability +/- 1 hPa per year 8.3 Temperature sensor Model : AM2315 Manufacturer : AOSONG Accuracy : +/- 0.1 deg C Notes : 9. DORIS network contacts Primary contact: Name : Jerome SAUNIER Agency : IGN Institut Geographique National Mailing address : Service de Geodesie et de Metrologie : 73 avenue de Paris : 94165 SAINT-MANDE Cedex FRANCE Telephone : + 33 1 43 98 83 63 Fax : + 33 1 43 98 84 50 E-mail : jerome (.) saunier (@) ign.fr Secondary contact: Name : Vincent GARCIA Agency : CNES Centre National d'Etudes Spatiales Mailing address : CNES (DNO/TSA/IS) : 18 Avenue Edouard Belin : 31401 TOULOUSE Cedex FRANCE Telephone : + 33 5 61 27 37 75 Fax : E-mail : vincent (.) garcia (@) cnes.fr