LOWE Site Information Form (site log) International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Richard Bingley Date Prepared : 2017-11-09 Report Type : UPDATE If Update: Previous Site Log : lowe_20081217.log Modified/Added Sections : 3.3, 4.1 1. Site Identification of the GNSS Monument Site Name : Lowestoft Tide Gauge Four Character ID : LOWE Monument Inscription : IERS DOMES Number : 13232M001 CDP Number : (A4) Monument Description : STEEL BRACKET AND CARBON FIBRE PIPE Height of the Monument : 0.80m Monument Foundation : BUILDING Foundation Depth : (m) Marker Description : TOP OF 40mm DIA THREAD ON STEEL BRACKET Date Installed : 1999-02-12T12:00Z Geologic Characteristic : ALLUVIUM Bedrock Type : SEDIMENTARY (CRAG) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/11-50 cm/51-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : The monument is mounted on the side : wall of a two storey brick office : building, adjacent to the tide gauge : building, so that the antenna is raised : above the roof : The GPS antenna is located on the monument : which consists of a 0.8m carbon fibre pipe : mounted on a steel bracket. : The GPS antenna is attached to the carbon fibre : pipe using a 5/8" thread. : The carbon fibre pipe is attached to the steel : bracket using a 40 mm diameter thread. : The male part of the 40mm diameter thread is on : the steel bracket and has a domed head, which : serves as the survey marker. 2. Site Location Information City or Town : Lowestoft State or Province : Suffolk Country : England Tectonic Plate : EURASIAN Approximate Position X coordinate (m) : 3891549.7 Y coordinate (m) : 118910.8 Z coordinate (m) : 5035092.8 Latitude (N is +) : +522823.60 Longitude (E is +) : +0014500.70 Elevation (m,ellips.) : 53.8 Additional Information : (multiple lines) 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 03141 Firmware Version : 1F50 Elevation Cutoff Setting : 5 Date Installed : 1999-02-13T00:00Z Date Removed : 1999-08-15T23:59Z Temperature Stabiliz. : NONE Additional Information : Full receiver serial number is LP 03141. : Operation using a direct modem connection. : Download using CGREMOTE v5.4.00 CGRS1F50 and : CGHOSE v5.4.00 CGRS1F50. : Conversion to RINEX using ASRINEXO v2.9.7 : (with PR SMOOTH FLAG 0). 3.2 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 03141 Firmware Version : CD00 Elevation Cutoff Setting : 5 Date Installed : 1999-08-17T00:00Z Date Removed : 2008-12-16T23:59Z Temperature Stabiliz. : NONE Additional Information : The full receiver serial number is LP 03141. : Operation using a direct modem connection. : Download using CGREMOTE v5.4.00 CGRSCD00 and : CGHOSE v6.0.00 CGRSCD00. : Conversion to RINEX using ASRINEXO v2.9.7 : (with PR SMOOTH FLAG 0). 3.3 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 03141 Firmware Version : CD00 Elevation Cutoff Setting : 5 Date Installed : 2008-12-17T00:00Z Date Removed : 2012-09-20T23:59Z Temperature Stabiliz. : NONE Additional Information : The full receiver serial number is LP 03141. : Operation using a direct modem connection. : Download using CGREMOTE v5.4.00 CGRSCD00. : Conversion to RINEX using TEQC 2008Oct2. 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS/GLONASS/GPS+GLONASS) 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 : ASH700936F_C SNOW Serial Number : 14769 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.7620 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 Antenna Radome Type : SNOW Radome Serial Number : Antenna Cable Type : ASHTECH 100914 REVA Antenna Cable Length : 30m Date Installed : 1999-02-13T00:00Z Date Removed : 2012-09-20T23:59Z Additional Information : Full antenna serial number is CR 14769. 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.x Tied Marker Name : Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : (m) dy (m) : (m) dz (m) : (m) Accuracy (mm) : (mm) Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc) Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 6. Frequency Standard 6.1 Standard Type : INTERNAL Input Frequency : (if external) Effective Dates : 1999-02-13/CCYY-MM-DD 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 8.1.1 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 : (multiple lines) 8.1.x Humidity Sensor Model : 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 : (multiple lines) 8.2.1 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) 8.2.x Pressure Sensor Model : 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) 8.3.1 Temp. Sensor Model : NONE Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (deg C) 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) 8.3.x Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (deg C) 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) 8.4.1 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) 8.4.x Water Vapor Radiometer : 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 : (multiple lines) 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degradations : (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 10.1 Date : (CCYY-MM-DDThh:mmZ) Event : (TREE CLEARING/CONSTRUCTION/etc) 10.x Date : (CCYY-MM-DDThh:mmZ) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : Associated British Ports Preferred Abbreviation : (A10) Mailing Address : Port House : Lowestoft : Suffolk NR32 1BG : UK Primary Contact Contact Name : Harbour Master Telephone (primary) : Telephone (secondary) : Fax : E-mail : Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : IESSG Preferred Abbreviation : IESSG Mailing Address : University of Nottingham : University Park : Nottingham NG72RD : UK Primary Contact Contact Name : Richard Bingley Telephone (primary) : +44 (0)115 9513932 Telephone (secondary) : +44 (0)115 9513880 Fax : +44 (0)115 9513881 E-mail : richard.bingley@nottingham.ac.uk Secondary Contact Contact Name : IESSG Experimental Officers Telephone (primary) : +44 (0)115 9513921 Telephone (secondary) : +44 (0)115 9513880 Fax : +44 (0)115 9513881 E-mail : iessg@nottingham.ac.uk Additional Information : LOWE is operated by the IESSG for the : Proudman Oceanographic Laboratory and : the UK Department for the Environment, Food : and Rural Affairs (DEFRA) 13. More Information Primary Data Center : Secondary Data Center : URL for More Information : http://www.bigf.ac.uk Hardcopy on File Site Map : Y Site Diagram : Y Horizon Mask : Y Monument Description : Y Site Pictures : Y Additional Information : (multiple lines) Antenna Graphics with Dimensions ASH700936F_C +---------+ / + \ <-- 0.1280 L2 | + | <-- 0.1100 L1 +-----------------+-------------+------------------+ <-- 0.1008 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0378 +-------------------+-------------+--------------------+ <-- 0.0348 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3794 --> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering