NIUM Site Information Form International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : John Beavan Date Prepared : 2007-07-30 Report Type : UPDATE If Update: Previous Site Log : nium_20051103.log Modified/Added Sections : 3.1, 3.2, 3.3, 11 1. Site Identification of the GNSS Monument Site Name : Niue Meteorological Service Four Character ID : NIUM Monument Inscription : none IERS DOMES Number : 50210M001 CDP Number : not assigned Monument Description : SHORT-BRACED (UNAVCO STYLE) Height of the Monument : 1.5 m Monument Foundation : Five stainless steel rods set with : epoxy into drill holes in rock. Foundation Depth : 1.9 m Marker Description : Top centre of stainless steel block : that forms the top of the monument. Date Installed : 2005-09-14 Geologic Characteristic : Coral limestone overlying volcanics Bedrock Type : Limestone Bedrock Condition : Good Fracture Spacing : (1-10 cm/10-50 cm/50-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : 2. Site Location Information City or Town : Alofi State or Province : Country : Niue Tectonic Plate : PAC Approximate Position (ITRF) X coordinate (m) : -5937159.6673 Y coordinate (m) : -1054675.7248 Z coordinate (m) : -2071390.5806 Latitude (N is +) : -190435.64 Longitude (E is +) : -1695537.44 Elevation (m,ellips.) : 90.1 Additional Information : 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4431236764 Firmware Version : 1.11 Elevation Cutoff Setting : 4 Date Installed : 2005-09-15T00:00Z Date Removed : 2005-10-26T00:00Z Temperature Stabiliz. : none Additional Information : Firmware changed to beta version from : 26 Oct 2005 for L2C test. 3.2 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4431236764 Firmware Version : 0.40 Elevation Cutoff Setting : 4 Date Installed : 2005-10-26T00:00Z Date Removed : 2007-02-26T00:00Z Temperature Stabiliz. : none Additional Information : Receiver died due to flashcard : problem. 3.3 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4520250855 Firmware Version : 1.15 Elevation Cutoff Setting : 4 Date Installed : 2007-03-16T00:28Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : none Additional Information : 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS+GLO+GAL+BDS+QZSS+SBAS) Serial Number : (A5) Firmware Version : (A11) Elevation Cutoff Setting : (deg) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 4. GNSS Antenna Information 4.1 Antenna Type : TRM41249.00 Serial Number : 12626150 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0020 Marker->ARP North Ecc(m) : 0.0 Marker->ARP East Ecc(m) : 0.0 Alignment from True N : 0 Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Antenna Cable Length : 30 m Date Installed : 2005-08-24T00:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 4.x Antenna Type : (A20, from rcvr_ant.tab; see instructions) Serial Number : (A*, but note the first A5 is used in SINEX) Antenna Reference Point : (BPA/BCR/XXX from "antenna.gra"; see instr.) Marker->ARP Up Ecc. (m) : (F8.4) Marker->ARP North Ecc(m) : (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : (deg; + is clockwise/east) Antenna Radome Type : (A4 from rcvr_ant.tab; see instructions) Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 5. Surveyed Local Ties 5.1 Tied Marker Name : NIUE Tied Marker Usage : S W PACIFIC CAMPAIGN GPS MARK Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : (mm) Survey method : GPS CAMPAIGN Date Measured : 2005-09-15T00:00Z Additional Information : Tied to NIUE (campaign mark) and NIUC : (previous continuous mark, but possibly : disturbed) for 1 day immediately after : installation. Data not yet analysed. 5.2 Tied Marker Name : NIUC Tied Marker Usage : PREVIOUS CONTINUOUS GPS MARK Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : (mm) Survey method : GPS CAMPAIGN Date Measured : 2005-09-15T00:00Z Additional Information : See 5.1. Not yet analysed. 6. Frequency Standard 6.1 Standard Type : INTERNAL Input Frequency : Effective Dates : 2005-09-15 Notes : (multiple lines) 6.x Standard Type : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc) Input Frequency : (if external) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 7. Collocation Information 7.x Instrumentation Type : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc) Status : (PERMANENT/MOBILE) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8. Meteorological Instrumentation 8.1.x Humidity Sensor Model : NONE Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy (% rel h) : (% rel h) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : GPS is located at grounds of Niue : Meteorological Service 8.2.x Pressure Sensor Model : NONE Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (hPa) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.3.x Temp. Sensor Model : NONE Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (hPa) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.4.x Water Vapor Radiometer : NONE Manufacturer : Serial Number : Distance to Antenna : (m) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.5.x Other Instrumentation : NONE 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degredations : (SN RATIO/DATA GAPS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.2.x Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.3.x Signal Obstructions : (TREES/BUILDLINGS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 10. Local Episodic Effects Possibly Affecting Data Quality 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : GNS Science Preferred Abbreviation : GNS Mailing Address : GNS Science : 1 Fairway Drive, Avalon : PO Box 30368, Lower Hutt : New Zealand Primary Contact Contact Name : GeoNet Reception Telephone (primary) : +64 4 570 1444 Telephone (secondary) : Fax : +64 4 570 4676 E-mail : info@geonet.org.nz Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 12. Responsible Agency (if different from 11.) Agency : Preferred Abbreviation : (A10) Mailing Address : (multiple lines) Primary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 13. More Information Primary Data Center : ftp.geonet.org.nz Secondary Data Center : cddisa.gsfc.nasa.gov URL for More Information : www.geonet.org.nz Hardcopy on File Site Map : GNS file 45/1/4-NIUM Site Diagram : GNS file 45/1/4-NIUM Horizon Mask : No obstructions. Monument Description : GNS file 45/1/4-NIUM Site Pictures : GNS file 45/1/4-NIUM Additional Information : GNS file 45/1/4-NIUM Antenna Graphics with Dimensions TRM41249.00 / ----------------------+--------------------- \ <-- 0.0714 L1 + + + <-- 0.0682 L2 \ -------------------------------------------- / \ / \ / \-----+-----/ <-- 0.0000 ARP=BAM <-- 0.3396 -->