ROTHERA DORIS site description form 0. Form Prepared by : SIMB (DORIS installation and maintenance department) Date prepared : 5/03/2008 Report type : UPDATE 1. Site location information Site name : ROTHERA Site DOMES number : 66007 Host agency : BRITISH ANTARCTIC SURVEY City : Rothera base (Adelaide Island) State or province : Country : ANTARCTICA (U. K. base) Tectonic plate : Antarctica Geological information : Geographical coordinates (ITRF) : North Latitude : -67 deg 34' 17'' East Longitude : -68 deg 7' 39'' Ellipsoid height : 35 m Approximate altitude : 28 m 2. DORIS antenna and reference point information 2.1 Four character ID : ROTA Antenna model : Alcatel Antenna serial number : 71 IERS DOMES number : 66007S001 CNES/IGN number : 660071 CTDP number : 1049 Date installed (dd/mm/yy): 03/02/1993 Date removed (dd/mm/yy) : 09/02/2005 Antenna support type : 1 metre tower Installed on : Side wall of a timbered laboratory (1 level) Height above ground mark : m Ground mark type : None Ground mark DOMES number : 66007 Notes : 2.2 Four character ID : ROTB Antenna model : Starec 52291 type Antenna serial number : 103 IERS DOMES number : 66007S002 CNES/IGN number : 660072 CTDP number : 246 Date installed (dd/mm/yy): 01/03/2005 Date removed (dd/mm/yy) : 28/10/2007 Antenna support type : Concrete pillar 1.5 m high, 0.4 m sided. Installed on : Solid bedrock Height above ground mark : 0.494 m Ground mark type : Domed brass screw Ground mark DOMES number : 66007M002 Notes : 2.3 Four character ID : ROUB Antenna model : Starec 52291 type Antenna serial number : 116 IERS DOMES number : 66007S003 CNES/IGN number : 660073 CTDP number : 280 Date installed (dd/mm/yy): 29/10/2007 Date removed (dd/mm/yy) : Antenna support type : Concrete pillar 1.5 m high, 0.4 m sided Installed on : Solid bedrock Height above ground mark : 0.644 m Ground mark type : Domed brass screw Ground mark DOMES number : 66007M002 Notes : Antenna raised by 15 cm in order to remove the : N-type bent cable connectors 3. DORIS beacons information 3.1 Beacon serial number : 86 33 054 Beacon model : 1.0 USO serial number : 1.581 4 Char. ID of the REF point : ROTA Date installed (dd/mm/yy) : 01/11/1991 Date removed (dd/mm/yy) : 01/02/1992 3.2 Beacon serial number : 86 33 049 Beacon model : 1.0 USO serial number : 1.695 4 Char. ID of the REF point : ROTA Date installed (dd/mm/yy) : 03/02/1992 Date removed (dd/mm/yy) : 27/12/1993 3.3 Beacon serial number : 86 27 021 Beacon model : 1.0 USO serial number : 1.357 4 Char. ID of the REF point : ROTA Date installed (dd/mm/yy) : 23/02/1994 Date removed (dd/mm/yy) : 01/03/2005 3.4 Beacon serial number : 28 19 013 Beacon model : 3.0 USO serial number : 3.236 4 Char. ID of the REF point : ROTB Date installed (dd/mm/yy) : 02/03/2005 Date removed (dd/mm/yy) : 28/10/2007 3.5 Beacon serial number : 28 19 013 Beacon model : 3.0 USO serial number : 3.236 4 Char. ID of the REF point : ROUB Date installed (dd/mm/yy) : 29/10/2007 Date removed (dd/mm/yy) : 4. ITRF coordinates and velocities of the current DORIS ref. point (ROUB) Solution : ITRF2000 (connection to DORIS ROTA) Epoch : 1997.0 X = 909182.571 m Y = -2264787.431 m Z = -5873052.421 m Sig X = 0.004 m Sig Y = 0.004 m Sig Z = 0.005 m VX = 0.0154 m/y VY = -0.0025 m/y VZ = 0.0020 m/y Sig VX = 0.0009 m/y Sig VY = 0.0012 m/y Sig VZ = 0.0019 m/y 5. IERS co-location information 6. Tide gauge co-location information 7. Local site ties 7.1 Point description : DORIS Starec antenna reference point (ROTB) DOMES number : 66007S002 Differential components from the current DORIS ref. point (ROUB) to the above point (in the ITRS) : dX (m) : -0.021 dY (m) : 0.053 dZ (m) : 0.139 Accuracy (m) : 0.001 Date measured : October 2007 Additional information : Survey by BAS 7.2 Point description : DORIS Alcatel antenna reference point (ROTA) DOMES number : 66007S001 Differential components from the current DORIS ref. point (ROUB) to the above point (in the ITRS) : dX (m) : 195.622 dY (m) : -147.114 dZ (m) : 95.513 Accuracy (m) : 0.002 Date measured : February 2005 Additional information : Survey by IGN-F 7.3 Point description : Mark under the permanent GPS "ROTH" DOMES number : Differential components from the current DORIS ref. point (ROUB) to the above point (in the ITRS) : dX (m) : 21.918 dY (m) : 1.761 dZ (m) : 5.262 Accuracy (m) : 0.001 Date measured : February 2005 Additional information : Survey by IGN-F 7.4 Point description : DORIS concrete pillar / domed brass mark DOMES number : 66007M002 Differential components from the current DORIS ref. point (ROUB) to the above point (in the ITRS) : dX (m) : -0.092 dY (m) : 0.228 dZ (m) : 0.595 Accuracy (m) : 0.001 Date measured : October 2007 Additional information : Survey by BAS 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 : 0.05 m above the current DORIS ref. point (ROUB) 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/PO/AL) : 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