RIKITEA DORIS site description form 0. Form Prepared by : SIMB (DORIS installation and maintenance department) Date prepared : 08/02/2024 Report type : NEW 1. Site location information Site name : RIKITEA Site DOMES number : 92301 Host agency : Meteo-France City : Rikitea State or province : Mangareva, Gambier Islands Country : FRANCE (Polynesia) Tectonic plate : PCFC Geological information : Geographical coordinates (ITRF) : North Latitude : -23 deg 7' 49'' East Longitude : -134 deg 57' 53'' Ellipsoid height : 80 m Approximate altitude : 90 m 2. DORIS antenna and reference point information 2.1 Four character ID : RIKB Antenna model : Starec 52291 type Antenna serial number : 118 IERS DOMES number : 92301S002 CNES/IGN number : 923011 DORIS SSALTO number : 273 Date installed (dd/mm/yy): 23/09/2006 Date removed (dd/mm/yy) : 04/06/2008 Antenna support type : 30 cm sided very rigid metal tower , 2 m high Installed on : 60 cm sided concrete block extending 2 m deep Height above ground mark : 2.428 m Ground mark type : Domed brass mark 12 mm diameter Ground mark DOMES number : 92301M001 Notes : 2.2 Four character ID : RIKB Antenna model : Starec 52291 type Antenna serial number : 118 IERS DOMES number : 92301S002 CNES/IGN number : 923011 DORIS SSALTO number : 273 Date installed (dd/mm/yy): 04/06/2008 Date removed (dd/mm/yy) : 11/03/2009 Antenna support type : 30 cm sided very rigid metal tower , 2 m high Installed on : 60 cm sided concrete block extending 2 m deep Height above ground mark : 2.428 m Ground mark type : Domed brass mark 12 mm diameter Ground mark DOMES number : 92301M001 Notes : 2 GHz offset 54 mm south, 51 mm east, 2 mm up following a car bump on the tower 2.3 Four character ID : RILB Antenna model : Starec 52291 type Antenna serial number : 139 IERS DOMES number : 92301S003 CNES/IGN number : 923012 DORIS SSALTO number : 287 Date installed (dd/mm/yy): 13/03/2009 Date removed (dd/mm/yy) : 30/07/2011 Antenna support type : 30 cm sided very rigid metal tower, 2 m high Installed on : 60 cm sided concrete block extending 2 m deep Height above ground mark : 2.431 m Ground mark type : Domed brass mark 12 mm diameter Ground mark DOMES number : 92301M001 Notes : New antenna, 15 mm south, 2 mm west of the initial RIKB position 2.4 Four character ID : RIMB Antenna model : Starec 52291 type Antenna serial number : 137 IERS DOMES number : 92301S004 CNES/IGN number : 923013 DORIS SSALTO number : 1296 Date installed (dd/mm/yy): 31/07/2011 Date removed (dd/mm/yy) : 07/12/2023 Antenna support type : 30 cm sided very rigid metal tower, 2 m high Installed on : 60 cm sided concrete block extending 2 m deep Height above ground mark : 2.431 m Ground mark type : Domed brass mark 12 mm diameter Ground mark DOMES number : 92301M001 Notes : 2.5 Four character ID : RIMC Antenna model : Starec C type Antenna serial number : 215 IERS DOMES number : 92301S005 CNES/IGN number : 923013 DORIS SSALTO number : 1296 Date installed (dd/mm/yy): 07/12/2023 Date removed (dd/mm/yy) : Antenna support type : 2 m high very rigid metal tower Installed on : concrete pad Height above ground mark : 2.232 m Ground mark type : Hexagonal domed brass mark Ground mark DOMES number : 92301M005 Notes : 3. DORIS beacons information 3.1 Beacon serial number : 2819019 Beacon model : 3.0 USO serial number : 3.296 4 Char. ID of the REF point : RIKB Date installed (dd/mm/yy) : 23/09/2006 Date removed (dd/mm/yy) : 11/03/2009 3.2 Beacon serial number : 2819040 Beacon model : 3.0 USO serial number : 3.465 4 Char. ID of the REF point : RILB Date installed (dd/mm/yy) : 13/03/2009 Date removed (dd/mm/yy) : 30/07/2011 3.3 Beacon serial number : 2819060 Beacon model : 3.0 USO serial number : 3.374 4 Char. ID of the REF point : RIMC Date installed (dd/mm/yy) : 31/07/2011 Date removed (dd/mm/yy) : 01/11/2011 3.4 Beacon serial number : 2819031 Beacon model : 3.0 USO serial number : 3.911 4 Char. ID of the REF point : RIMC Date installed (dd/mm/yy) : 07/03/2012 Date removed (dd/mm/yy) : 03/03/2017 3.5 Beacon serial number : 2819051 Beacon model : 3.0 USO serial number : 3.262 4 Char. ID of the REF point : RIMC Date installed (dd/mm/yy) : 03/03/2017 Date removed (dd/mm/yy) : 28/07/2022 3.6 Beacon serial number : 1400098 Beacon model : 3.1 USO serial number : 4 Char. ID of the REF point : RIMC Date installed (dd/mm/yy) : 28/07/2022 Date removed (dd/mm/yy) : 06/12/2023 3.7 Beacon serial number : 21394074I Beacon model : 4.0 USO serial number : 4.P1068 4 Char. ID of the REF point : RIMC Date installed (dd/mm/yy) : 07/12/2023 Date removed (dd/mm/yy) : 4. ITRF coordinates and velocities of the current DORIS ref. point (RIMC) Solution : ITRF2020 (tie to RIMB) Epoch : 2000.0 X = -4147120.452 m Y = -4152230.962 m Z = -2490029.837 m Sig X = 0.000 m Sig Y = 0.002 m Sig Z = 0.001 m VX = -0.0562 m/y VY = 0.0400 m/y VZ = 0.0288 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 : 92301M003 Notes : IGS station (GAMB) 6. Tide Gauge colocation information 6.1 Name : Rikitea, Gambier Location : Harbour GLOSS number : 138 Distance : 0.8 km Notes : 7. Local site ties 7.1 Point description : Domed mark under the DORIS antenna (RIMC) DOMES number : 92301M005 Differential components from the DORIS ref. point (RIMC) to the above point (in the ITRS) : dX (m) : 1.450 dY (m) : 1.452 dZ (m) : 0.877 Accuracy (m) : 0.001 Date measured : 05/12/2023 Additional information : Survey by IGN-F 7.2 Point description : DORIS Starec antenna reference point (RIKB) DOMES number : 92301S002 Differential components from the DORIS ref. point (RIMB) to the above point (in the ITRS) : dX (m) : -0.004 dY (m) : -0.001 dZ (m) : 0.014 Accuracy (m) : 0.001 Date measured : 14/03/2009 Additional information : Survey by IGN-F 7.3 Point description : DORIS Starec antenna reference point (RILB) DOMES number : 92301S003 Differential components from the DORIS ref. point (RIMB) to the above point (in the ITRS) : dX (m) : 0.000 dY (m) : 0.000 dZ (m) : 0.000 Accuracy (m) : 0.001 Date measured : 31/07/2011 Additional information : Survey by IGN-F 7.4 Point description : DORIS Starec antenna reference point (RIMB) DOMES number : 92301S004 Differential components from the DORIS ref. point (RIMC) to the above point (in the ITRS) : dX (m) : -16.743 dY (m) : 11.384 dZ (m) : 5.654 Accuracy (m) : 0.001 Date measured : 05/12/2023 Additional information : Survey by IGN-F 7.5 Point description : IGS station (GAMB) DOMES number : 92301M003 Differential components from the DORIS ref. point (RIMC) to the above point (in the ITRS) : dX (m) : -5.665 dY (m) : 8.326 dZ (m) : -3.628 Accuracy (m) : 0.001 Date measured : 05/12/2023 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 (RIMC) 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 : 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