ROTHERA DORIS site description form 0. Form Prepared by : SIMB (DORIS installation and maintenance department) Date prepared : 20/12/2018 Report type : UPDATE 1. Site location information Site name : ROTHERA Site DOMES number : 66007 Host agency : British Antarctic Survey (BAS) City : Rothera base State or province : Adelaide Island Country : Antarctica (U. K. base) Tectonic plate : Antartica Geological information : Geographical coordinates (ITRF) : North Latitude : -67 deg 34' 16'' East Longitude : -68 deg 7' 32'' Ellipsoid height : 36 m Approximate altitude : 26 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 DORIS SSALTO number : 1049 Date installed (dd/mm/yy): 30/12/1991 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 : Ground mark type : Ground mark DOMES number : Notes : 2.2 Four character ID : ROTB Antenna model : Starec 52291 type Antenna serial number : 103 IERS DOMES number : 66007S002 CNES/IGN number : 660072 DORIS SSALTO 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 mark 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 DORIS SSALTO number : 280 Date installed (dd/mm/yy): 29/10/2007 Date removed (dd/mm/yy) : 01/02/2011 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 mark Ground mark DOMES number : 66007M002 Notes : Antenna raised by 15 cm by BAS in order to remove the N-type bent cable connectors 2.4 Four character ID : ROVB Antenna model : Starec 52291 type Antenna serial number : 136 IERS DOMES number : 66007S004 CNES/IGN number : 660074 DORIS SSALTO number : 292 Date installed (dd/mm/yy): 03/02/2011 Date removed (dd/mm/yy) : 10/01/2015 Antenna support type : stainless steel structure 40cm high Installed on : concrete pillar 1.5m high Height above ground mark : 0.829 m Ground mark type : Domed mark Ground mark DOMES number : 66007M002 Notes : 2.5 Four character ID : ROWC Antenna model : Starec C type Antenna serial number : 149 IERS DOMES number : 66007S005 CNES/IGN number : 660075 DORIS SSALTO number : 1292 Date installed (dd/mm/yy): 10/01/2015 Date removed (dd/mm/yy) : 22/02/2018 Antenna support type : stainless steel structure 40cm high Installed on : concrete pillar 1.5m high Height above ground mark : 0.829 m Ground mark type : Domed mark Ground mark DOMES number : 66007M002 Notes 2.6 Four character ID : ROXC Antenna model : Starec C type Antenna serial number : 178 IERS DOMES number : 66007S006 CNES/IGN number : 660076 DORIS SSALTO number : 2292 Date installed (dd/mm/yy): 27/02/2018 Date removed (dd/mm/yy) : Antenna support type : stainless steel structure 40cm high Installed on : concrete pillar 1.3m high Height above ground mark : 0.826 m Ground mark type : Hexagonal domed brass mark Ground mark DOMES number : 66007M004 Notes : 3. DORIS beacons information 3.1 Beacon serial number : 8633054 Beacon model : 1.0 USO serial number : 1.581 4 Char. ID of the REF point : ROTA Date installed (dd/mm/yy) : 30/12/1991 Date removed (dd/mm/yy) : 01/02/1992 3.2 Beacon serial number : 8633049 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 : 8627021 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 : 2819013 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) : 17/07/2007 3.5 Beacon serial number : 2819013 Beacon model : 3.0 USO serial number : 3.236 4 Char. ID of the REF point : ROUB Date installed (dd/mm/yy) : 13/11/2007 Date removed (dd/mm/yy) : 03/11/2009 3.6 Beacon serial number : 3690074 Beacon model : 3.0 USO serial number : 3.517 4 Char. ID of the REF point : ROUB Date installed (dd/mm/yy) : 03/11/2009 Date removed (dd/mm/yy) : 01/02/2011 3.7 Beacon serial number : 3690074 Beacon model : 3.0 USO serial number : 3.517 4 Char. ID of the REF point : ROVB Date installed (dd/mm/yy) : 03/02/2011 Date removed (dd/mm/yy) : 10/01/2015 3.8 Beacon serial number : 3690074 Beacon model : 3.0 USO serial number : 3.517 4 Char. ID of the REF point : ROWC Date installed (dd/mm/yy) : 10/01/2015 Date removed (dd/mm/yy) : 27/02/2018 3.9 Beacon serial number : 1400096 Beacon model : 3.1 USO serial number : 3.1149 4 Char. ID of the REF point : ROXC Date installed (dd/mm/yy) : 27/02/2018 Date removed (dd/mm/yy) : 4. ITRF coordinates and velocities of the current DORIS ref. point (ROXC) Solution : dpod2014 3.0 Epoch : 2000.0 X = 909267.237 m Y = -2264782.597 m Z = -5873042.018 m Sig X = 0.002 m Sig Y = 0.002 m Sig Z = 0.002 m VX = 0.0174 m/y VY = -0.00233 m/y VZ = 0.00151 m/y Sig VX = 0.0003 m/y Sig VY = 0.0003 m/y Sig VZ = 0.0003 m/y 5. IERS colocation information 5.1 Instrument type : GNSS Status : Permanent DOMES number of the instrument ref. point : 66007M003 Notes : IGS station (ROTH) 6. Tide Gauge colocation information 6.1 Name : Rothera Location : Rothera base GLOSS number : 342 Distance : Notes : PSMSL 1931 7. Local site ties 7.1 Point description : DORIS Starec antenna reference point (ROWC) DOMES number : 66007S005 Differential components from the current DORIS ref. point (ROXC) to the above point (in the ITRS) : dX (m) : -84.595 dY (m) : -4.937 dZ (m) : -10.552 Accuracy (m) : 0.001 Date measured : 22/02/2018 Additional information : Survey by IGN-F 7.2 Point description : Mark under the antenna DOMES number : 66007M004 Differential components from the current DORIS ref. point (ROXC) to the above point (in the ITRS) : dX (m) : -0.117 dY (m) : 0.290 dZ (m) : 0.764 Accuracy (m) : 0.001 Date measured : 22/02/2018 Additional information : Survey by IGN-F 7.3 Point description : Permanent GNSS station IGS (ROTH) DOMES number : 66007M003 Differential components from the current DORIS ref. point (ROXC) to the above point (in the ITRS) : dX (m) : -21.336 dY (m) : 18.463 dZ (m) : -14.296 Accuracy (m) : 0.001 Date measured : 22/02/2018 Additional information : Survey by IGN-F 7.4 Point description : Tide gauge Rothera (GLOSS 342) DOMES number : Differential components from the current DORIS ref. point (ROXC) to the above point (in the ITRS) : dX (m) : -168.415 dY (m) : -33.055 dZ (m) : 13.626 Accuracy (m) : 0.001 Date measured : 22/02/2018 Additional information : Survey by IGN-F 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 hPa Height : 0.15 m below the current DORIS ref. point (ROXC) Notes : long term stability = +/- 0.1 hPa/year 8.3 Temperature sensor Model : HMP45D Manufacturer : VAISALA Accuracy : +/- 0.5 deg C Notes : 9. DORIS network contacts Primary contact: Name : Jerome SAUNIER Agency : Institut Geographique National Mailing address : Service de Geodesie et Nivellement : 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 : Odile FOURESTIER Agency : Institut Geographique National Mailing address : CNES (DNO/SA/IS) : 18 Avenue Edouard Belin : 31401 TOULOUSE Cedex FRANCE Telephone : + 33 5 61 28 24 49 Fax : E-mail : simb (.) doris (@) cnes.fr