TRISTAN DA CUNHA DORIS site description form 0. Form Prepared by : SIMB (DORIS installation and maintenance department) Date prepared : 13/11/2000 Report type : NEW 1. Site location information Site name : TRISTAN DA CUNHA Site DOMES number : 30604 Host agency : RADIO STATION City : Tristan da Cunha Island State or province : South Atlantic Ocean Country : UNITED KINGDOM (South Atlantic Ocean) Tectonic plate : AFRC Geological information : Geographical coordinates (ITRF) : North Latitude : -37 deg 3' 55'' East Longitude : -12 deg 18' 45'' Ellipsoid height : 49 m Approximate altitude : 2. DORIS antenna and reference point information 2.1 Four character ID : TRIA Antenna model : Alcatel Antenna serial number : 16 IERS DOMES number : 30604S001 CNES/IGN number : 306041 CTDP number : 58 Date installed (dd/mm/yy): 10/06/1986 Date removed (dd/mm/yy) : Antenna support type : 1 metre tower Installed on : Front wall interface fixed through the : station wall (other attach point at mid : height of the pylon). Height above ground mark : Ground mark type : None Ground mark DOMES number : 30604 Notes : 3. DORIS beacons information 3.1 Beacon serial number : 86 25 004 Beacon model : 1.0 USO serial number : 1.261 4 Char. ID of the REF point : TRIA Date installed (dd/mm/yy) : 10/06/1986 Date removed (dd/mm/yy) : 23/02/1990 3.2 Beacon serial number : 86 33 031 Beacon model : 1.0 USO serial number : 1.569 4 Char. ID of the REF point : TRIA Date installed (dd/mm/yy) : 09/10/1990 Date removed (dd/mm/yy) : 15/07/1991 3.3 Beacon serial number : 86 33 058 Beacon model : 1.0 USO serial number : 1.663 4 Char. ID of the REF point : TRIA Date installed (dd/mm/yy) : 12/01/1992 Date removed (dd/mm/yy) : 4. ITRF coordinates and velocities of the current DORIS ref. point (TRIA) Solution : ITRF 97 Epoch : 1997.0 X = 4978463.232 m Y = -1086620.705 m Z = -3823205.579 m Sig X = .014 m Sig Y = .018 m Sig Z = .013 m VX = .0230 m/y VY = .0164 m/y VZ = .0254 m/y Sig VX = .0058 m/y Sig VY = .0069 m/y Sig VZ = .0053 m/y 5. IERS collocation information 6. Tide Gauge collocation information 6.1 Name : Edinburgh Location : Tristan da Cunha GLOSS number : 266 Distance : 2 km Notes : 7. Local site ties 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 : about - 2 m above the current DORIS ref. point (TRIA) 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 : Alain ORSONI 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 : Alain.Orsoni@cnes.fr