OWENGA DORIS site description form 0. Form Prepared by : SIMB (DORIS installation and maintenance department) Date prepared : 09/01/2023 Report type : UPDATE 1. Site location information Site name : OWENGA Site DOMES number : 50253 Host agency : LINZ City : Owenga State or province : Chatham Islands Country : NEW ZEALAND Tectonic plate : PCFC Geological information : red bluff tuff Geographical coordinates (ITRF) : North Latitude : -44 deg 1' 28'' East Longitude : -176 deg 22' 8'' Ellipsoid height : 23 m Approximate altitude : 13 m 2. DORIS antenna and reference point information 2.1 Four character ID : OWEC Antenna model : Starec C type Antenna serial number : 156 IERS DOMES number : 50253S001 CNES/IGN number : 502531 DORIS SSALTO number : 340 Date installed (dd/mm/yy): 20/11/2014 Date removed (dd/mm/yy) : 07/03/2016 Antenna support type : 2 m high very rigid metal tower Installed on : concrete pad Height above ground mark : 2.432 m Ground mark type : brass mark Ground mark DOMES number : 50253M002 Notes : 2.2 Four character ID : OWFC Antenna model : Starec C type Antenna serial number : 156 IERS DOMES number : 50253S002 CNES/IGN number : 502532 DORIS SSALTO number : 1340 Date installed (dd/mm/yy): 10/03/2016 Date removed (dd/mm/yy) : Antenna support type : 2 m high very rigid metal tower Installed on : concrete pad Height above ground mark : 2.433 m Ground mark type : Stainless steel pin Ground mark DOMES number : 50253M003 Notes : 3. DORIS beacons information 3.1 Beacon serial number : 3690075 Beacon model : 3.0 USO serial number : 3.528 4 Char. ID of the REF point : OWEC Date installed (dd/mm/yy) : 20/11/2014 Date removed (dd/mm/yy) : 24/11/2015 3.2 Beacon serial number : 2819055 Beacon model : 3.0 USO serial number : 3.350 4 Char. ID of the REF point : OWEC Date installed (dd/mm/yy) : 24/11/2015 Date removed (dd/mm/yy) : 07/03/2016 3.3 Beacon serial number : 2819055 Beacon model : 3.0 USO serial number : 3.350 4 Char. ID of the REF point : OWFC Date installed (dd/mm/yy) : 10/03/2016 Date removed (dd/mm/yy) : 03/12/2022 3.4 Beacon serial number : 20194033I Beacon model : 4.0 USO serial number : 4.P0029 4 Char. ID of the REF point : OWFC Date installed (dd/mm/yy) : 03/12/2022 Date removed (dd/mm/yy) : 4. ITRF coordinates and velocities of the current DORIS ref. point (OWFC) Solution : dpod2014_04 Epoch : 2000.0 X = -4584391.589 m Y = -290925.964 m Z = -4410054.115 m Sig X = 0.003 m Sig Y = 0.004 m Sig Z = 0.003 m VX = -0.02376 m/y VY = 0.03964 m/y VZ = 0.02486 m/y Sig VX = 0.0002 m/y Sig VY = 0.0002 m/y Sig VZ = 0.0002 m/y 5. IERS colocation information 5.1 Instrument type : GNSS Status : Permanent DOMES number of the instrument ref. point : 50253M001 Notes : IGS station (OWNG) 5.2 Instrument type : GNSS Status : Permanent DOMES number of the instrument ref. point : 50253M004 Notes : Station REGINA (OWMG) 6. Tide Gauge colocation information 6.1 Name : Owenga "CHIT" Location : Owenga wharf GLOSS number : Distance : 75 m Notes : 7. Local site ties 7.1 Point description : Mark underneath the DORIS antenna DOMES number : 50253M003 Differential components from the current DORIS ref. point (OWFC) to the above point (in the ITRS) : dX (m) : 1.745 dY (m) : 0.108 dZ (m) : 1.692 Accuracy (m) : 0.001 Date measured : 01/06/2016 Additional information : Survey by LINZ 7.2 Point description : DORIS Starec antenna reference point (OWEC) DOMES number : 50253S001 Differential components from the current DORIS ref. point (OWFC) to the above point (in the ITRS) : dX (m) : 63.096 dY (m) : -27.899 dZ (m) : -63.505 Accuracy (m) : 0.001 Date measured : 03/06/2016 Additional information : Survey by LINZ 7.3 Point description : Former DORIS mark DOMES number : 50253M002 Differential components from the current DORIS ref. point (OWFC) to the above point (in the ITRS) : dX (m) : 64.842 dY (m) : -27.788 dZ (m) : -61.815 Accuracy (m) : 0.001 Date measured : 03/06/2016 Additional information : Survey by LINZ 7.4 Point description : Permanent GNSS station IGS (OWMG) DOMES number : 50253M004 Differential components from the current DORIS ref. point (OWFC) to the above point (in the ITRS) : dX (m) : -2.205 dY (m) : -6.428 dZ (m) : 5.710 Accuracy (m) : 0.001 Date measured : 03/06/2016 Additional information : Survey by LINZ 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 (OWFC) 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 : + 33 1 43 98 84 50 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