NY-ALESUND DORIS site description form 0. Form Prepared by : SIMB (DORIS installation and maintenance department) Date prepared : 8/04/2003 Report type : UPDATE 1. Site location information Site name : NY-ALESUND Site DOMES number : 10317 Host agency : IFRTP City : Ny-Alesund State or province : Svalbard Country : NORWAY Tectonic plate : EURA Geological information : Geographical coordinates (ITRF) : North Latitude : 78 deg 55' 24'' East Longitude : 11 deg 55' 54'' Ellipsoid height : 52 m Approximate altitude : 17 m 2. DORIS antenna and reference point information 2.1 Four character ID : SPIA Antenna model : Alcatel Antenna serial number : 25 IERS DOMES number : 10317S002 CNES/IGN number : 103171 CTDP number : 20 Date installed (dd/mm/yy): 13/09/1987 Date removed (dd/mm/yy) : 26/07/1999 Antenna support type : Guyed 2 metre tower Installed on : Terrace roof of a 2 storied building Height above ground mark : 2.197 m Ground mark type : Brass mark 12 mm diameter Ground mark DOMES number : 10317M004 Notes : 2.2 Four character ID : SPIB Antenna model : Starec 52290 type Antenna serial number : 31 IERS DOMES number : 10317S004 CNES/IGN number : 103172 CTDP number : 88 Date installed (dd/mm/yy): 29/07/1999 Date removed (dd/mm/yy) : Antenna support type : Guyed 2 metre tower Installed on : Terrace roof of a 2 storied building Height above ground mark : 2.439 m Ground mark type : Domed brass mark 12 mm diameter Ground mark DOMES number : 10317M006 Notes : 3. DORIS beacons information 3.1 Beacon serial number : 86 27 020 Beacon model : 1.0 USO serial number : 1.397 4 Char. ID of the REF point : SPIA Date installed (dd/mm/yy) : 01/09/1987 Date removed (dd/mm/yy) : 20/08/1997 3.2 Beacon serial number : 86 33 047 Beacon model : 1.0 USO serial number : 1.483 4 Char. ID of the REF point : SPIA Date installed (dd/mm/yy) : 22/08/1997 Date removed (dd/mm/yy) : 15/04/1999 3.3 Beacon serial number : 98 45 106 Beacon model : 2.0 USO serial number : 3.122 4 Char. ID of the REF point : SPIB Date installed (dd/mm/yy) : 29/07/1999 Date removed (dd/mm/yy) : 15/09/1999 3.4 Beacon serial number : 99 04 121 Beacon model : 2.0 USO serial number : 3.130 4 Char. ID of the REF point : SPIB Date installed (dd/mm/yy) : 24/11/1999 Date removed (dd/mm/yy) : 01/05/2000 3.5 Beacon serial number : 99 04 125 Beacon model : 2.0 USO serial number : 2.868 4 Char. ID of the REF point : SPIB Date installed (dd/mm/yy) : 04/07/2000 Date removed (dd/mm/yy) : 4. ITRF coordinates and velocities of the current DORIS ref. point (SPIB) Solution : ITRF2000 (derived from the connection with NYA1) Epoch : 1997.0 X = 1202794.020 m Y = 254163.080 m Z = 6237609.564 m Sig X = 0.001 m Sig Y = 0.001 m Sig Z = 0.004 m VX = -0.0144 m/y VY = 0.0076 m/y VZ = 0.0090 m/y Sig VX = 0.0002 m/y Sig VY = 0.0001 m/y Sig VZ = 0.0006 m/y 5. IERS collocation information 5.1 Instrument type : GPS Status : Permanent DOMES number of the instrument ref. point : 10317M001 Notes : IGS station NYAL 5.2 Instrument type : GPS Status : Permanent DOMES number of the instrument ref. point : 10317M003 Notes : IGS station NYA1 5.3 Instrument type : VLBI Status : Permanent DOMES number of the instrument ref. point : 10317S003 Notes : 6. Tide Gauge collocation information 6.1 Name : Baretsburg Location : Baretsburg GLOSS number : 231 Distance : 108 km Notes : 7. Local site ties 7.1 Point description : Domed brass mark under the DORIS antenna DOMES number : 10317M006 Differential components from the current DORIS ref. point (SPIB) to the above point (in the ITRS) : dX (m) : -0.458 dY (m) : -0.097 dZ (m) : -2.394 Accuracy (m) : 0.001 Date measured : July 1999 Additional information : Survey by IGN-F 7.2 Point description : DORIS Alcatel antenna reference point (SPIA) DOMES number : 10317S002 Differential components from the current DORIS ref. point (SPIB) to the above point (in the ITRS) : dX (m) : -0.045 dY (m) : -0.010 dZ (m) : -0.237 Accuracy (m) : 0.002 Date measured : July 1999 Additional information : Survey by IGN-F 7.3 Point description : IGS monument NYA1 (top plate of a steel tower) DOMES number : 10317M003 Differential components from the current DORIS ref. point (SPIB) to the above point (in the ITRS) : dX (m) : -360.060 dY (m) : -1530.851 dZ (m) : 162.949 Accuracy (m) : 0.002 Date measured : July 1999 Additional information : Survey by IGN-F 7.4 Point description : VLBI antenna DOMES number : 10317S003 Differential components from the current DORIS ref. point (SPIB) to the above point (in the ITRS) : dX (m) : -331.266 dY (m) : -1428.689 dZ (m) : 156.479 Accuracy (m) : 0.002 Date measured : August 2000 Additional information : GPS-VLBI survey by Nothnagel et al. 8. Meteorological Instrumentation 8.1 Humidity sensor Model : SMP35D Manufacturer : VAISALA Accuracy : +/- 5 percents Notes : 8.2 Pressure sensor Model : PTB202 Manufacturer : VAISALA Accuracy : +/- 0.5 mb Height : -0.9 m above the current DORIS ref. point (SPIB) Notes : long term stability = +/- 0.2 mb/year 8.3 Temperature sensor Model : SMP35D Manufacturer : VAISALA Accuracy : +/- 0.25 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 (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