COLOMBO DORIS site description form 0. Form Prepared by : SIMB (DORIS installation and maintenance department) Date prepared : 13/10/2005 Report type : UPDATE 1. Site location information Site name : COLOMBO Site DOMES number : 23501 Host agency : SURVEY DEPARTMENT City : Colombo State or province : Country : SRI LANKA Tectonic plate : Geological information : Geographical coordinates (ITRF) : North Latitude : 6 deg 53' 31'' East Longitude : 79 deg 52' 27'' Ellipsoid height : -77 m Approximate altitude : 20 m 2. DORIS antenna and reference point information 2.1 Four character ID : COLA Antenna model : Alcatel Antenna serial number : 56 IERS DOMES number : 23501S001 CNES/IGN number : 235011 CTDP number : 30 Date installed (dd/mm/yy): 06/06/1991 Date removed (dd/mm/yy) : 19/10/2004 Antenna support type : Guyed 3 metre tower Installed on : Terrace roof of a 3 storied building Height above ground mark : 3.205 m Ground mark type : Brass mark 12 mm diameter Ground mark DOMES number : 23501M002 Notes : 3. DORIS beacons information 3.1 Beacon serial number : 86 33 030 Beacon model : 1.0 USO serial number : 1.555 4 Char. ID of the REF point : COLA Date installed (dd/mm/yy) : 21/06/1991 Date removed (dd/mm/yy) : 12/01/1994 3.2 Beacon serial number : 86 33 032 Beacon model : 1.0 USO serial number : 1.248 4 Char. ID of the REF point : COLA Date installed (dd/mm/yy) : 21/01/1994 Date removed (dd/mm/yy) : 04/04/1994 3.3 Beacon serial number : 86 33 060 Beacon model : 1.0 USO serial number : 2.862 4 Char. ID of the REF point : COLA Date installed (dd/mm/yy) : 02/06/1994 Date removed (dd/mm/yy) : 10/10/2000 3.4 Beacon serial number : 86 33 047 Beacon model : 1.0 USO serial number : 1.483 4 Char. ID of the REF point : COLA Date installed (dd/mm/yy) : 19/10/2000 Date removed (dd/mm/yy) : 30/05/2001 3.5 Beacon serial number : 86 33 026 Beacon model : 1.0 USO serial number : 4.86898 4 Char. ID of the REF point : COLA Date installed (dd/mm/yy) : 17/07/2001 Date removed (dd/mm/yy) : 19/10/2004 4. ITRF coordinates and velocities of the current DORIS ref. point (COLA) Solution : ITRF2000 Epoch : 1997.0 X = 1113278.620 m Y = 6233646.287 m Z = 760276.736 m Sig X = 0.011 m Sig Y = 0.008 m Sig Z = 0.005 m VX = -0.0481 m/y VY = 0.0063 m/y VZ = 0.0302 m/y Sig VX = 0.0058 m/y Sig VY = 0.0042 m/y Sig VZ = 0.0027 m/y 5. IERS colocation information 6. Tide Gauge colocation information 6.1 Name : Colombo Location : Colombo GLOSS number : 33 Distance : 5 km Notes : 7. Local site ties 7.1 Point description : Brass Mark under the DORIS antenna DOMES number : 23501M002 Differential components from the current DORIS ref. point (COLA) to the above point (in the ITRS) : dX (m) : -0.559 dY (m) : -3.132 dZ (m) : -0.385 Accuracy (m) : 0.01 Date measured : Additional information : 7.2 Point description : GPS mark on roof (Epoch 92) DOMES number : 23501M001 Differential components from the current DORIS ref. point (COLA) to the above point (in the ITRS) : dX (m) : 24.127 dY (m) : -0.938 dZ (m) : -18.050 Accuracy (m) : 0.01 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 : TP/FQ/02 Manufacturer : ORION Accuracy : Height : -1.8 m above the current DORIS ref. point (COLA) 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