FLDW Site Information Form (site log) Generated by German Federal Institute of Hydrology Based on International GPS Service Instructions 0. Form Prepared by (full name) : Bundesanstalt fuer Gewaesserkunde Date Prepared : 2023-04-21 Report Type : UPDATE If Update : Previous Site Log : FLDW00DEU_20220810.log Modified/Added Sections : 0,3 1. Site Identification of the GNSS Monument Site Name : Frontlight Dwarsgat Four Character ID : FLDW Monument Inscription : IERS DOMES Number : 14291M001 CDP Number : Monument Description : Front light, steel tube construction Height of the Monument : 18m Monument Foundation : Foundation Depth : Marker Description : plate with 5/8" bolt, top of the bolt Date Installed : 2008-08-04T12:00Z Geologic Characteristic : Sea bottom Bedrock Type : Sedimentary Bedrock Condition : Fracture Spacing: : Fault zones nearby : Distance/activity : Additional Information : Antenna mounted with a special full metal triv : ed on a hand rail 2. Site Location Information City or Town : Bremerhaven State or Province : Bremen Country : Germany Tectonic Plate : Eurasian Approximate Position (IGS05) X coordinate (m) : 3742849.2080 Y coordinate (m) : 546531.4100 Z coordinate (m) : 5118321.2940 Latitude (N is +) : +53.7186270799 Longitude (E is +) : +8.3076257026 Elevation (m,ellips.) : 58.9858 Additional Information : Tide gauge station Dwarsgat, tide gauge operat : or = Waterway and Shipping Office (WSA) Bremer : haven, station name = Unterfeuer Dwarsgat, PSM : SL country/station code = , GLOSS code = , 3. GNSS Receiver Information 3.1 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 355502 Firmware Version : 5.62/3.017 Elevation Cutoff Setting : 0 Date Installed : 2008-08-04T12:00Z Date Removed : 2009-07-23T06:00Z Temperature Stabiliz. : NONE Additional Information : Logging rate 10s, filelength 6h, ftp-push ever : y 6h, Hatanaka and zip compressed RINEX files 3.2 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO Serial Number : 495242 Firmware Version : 7.50/4.003 Elevation Cutoff Setting : 0 Date Installed : 2009-07-23T14:00Z Date Removed : 2010-07-12T06:00Z Temperature Stabiliz. : NONE Additional Information : Change receiver, logging rate 10s, filelength : 6h, ftp-push every 6h, Hatanaka and zip compre : ssed RINEX files 3.3 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO Serial Number : 495242 Firmware Version : 7.50/4.005 Elevation Cutoff Setting : 0 Date Installed : 2010-07-12T14:00Z Date Removed : 2011-06-30T06:00Z Temperature Stabiliz. : NONE Additional Information : Change firmware/measurement engine, logging ra : te 10s, filelength 6h, ftp-push every 6h, Hata : naka and zip compressed RINEX files 3.4 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO Serial Number : 495242 Firmware Version : 8.20/4.005 Elevation Cutoff Setting : 0 Date Installed : 2011-06-30T14:00Z Date Removed : 2015-01-16T06:00Z Temperature Stabiliz. : NONE Additional Information : Change firmware/measurement engine, logging ra : te 30s, filelength 6h, ftp-push every 6h, Hata : naka and zip compressed RINEX files 3.5 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO Serial Number : 495242 Firmware Version : 8.20/6.112 Elevation Cutoff Setting : 0 Date Installed : 2015-01-16T10:00Z Date Removed : 2016-06-01T12:00Z Temperature Stabiliz. : NONE Additional Information : Change firmware/measurement engine, logging ra : te 30s, filelength 6h, ftp-push every 6h, Hata : naka and zip compressed RINEX files 3.6 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO Serial Number : 496148 Firmware Version : 8.20/6.112 Elevation Cutoff Setting : 0 Date Installed : 2016-06-09T06:00Z Date Removed : 2019-03-06T10:00Z Temperature Stabiliz. : NONE Additional Information : Change firmware/measurement engine, logging ra : te 30s, filelength 6h, ftp-push every 6h, Hata : naka and zip compressed RINEX files 3.7 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS Serial Number : 1832425 Firmware Version : 4.31.101/7.403 Elevation Cutoff Setting : 0 Date Installed : 2019-03-06T12:00Z Date Removed : 2021-05-20T11:37Z Temperature Stabiliz. : NONE Additional Information : Change firmware/measurement engine, logging ra : te 30s, filelength 6h, ftp-push every 6h, Hata : naka and zip compressed RINEX files 3.8 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS Serial Number : 1832425 Firmware Version : 4.50.242/7.710 Elevation Cutoff Setting : 0 Date Installed : 2021-05-20T11:38Z Date Removed : 2021-11-05T10:25Z Temperature Stabiliz. : NONE Additional Information : Change firmware/measurement engine, logging ra : te 30s, filelength 6h, ftp-push every 6h, Hata : naka and zip compressed RINEX files 3.9 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS Serial Number : 1832425 Firmware Version : 4.51.489/7.710 Elevation Cutoff Setting : 0 Date Installed : 2021-11-05T10:26Z Date Removed : 2022-02-23T06:38Z Temperature Stabiliz. : NONE Additional Information : Change firmware/measurement engine, logging ra : te 30s, filelength 6h, ftp-push every 6h, Hata : naka and zip compressed RINEX files 3.10 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS Serial Number : 1832425 Firmware Version : 4.52.518/7.711 Elevation Cutoff Setting : 0 Date Installed : 2022-02-23T06:40Z Date Removed : 2022-08-09T07:12Z Temperature Stabiliz. : NONE Additional Information : Change firmware/measurement engine, logging ra : te 30s, filelength 6h, ftp-push every 6h, Hata : naka and zip compressed RINEX files 3.11 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 1832425 Firmware Version : 4.60.259/7.811 Elevation Cutoff Setting : 0 Date Installed : 2022-08-09T07:13Z Date Removed : 2023-04-21T06:56Z Temperature Stabiliz. : NONE Additional Information : Change firmware/measurement engine, logging ra : te 30s, filelength 6h, ftp-push every 6h, Hata : naka and zip compressed RINEX files 3.12 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 1832425 Firmware Version : 4.61.290/7.811 Elevation Cutoff Setting : 0 Date Installed : 2023-04-21T06:58Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : NONE Additional Information : Change firmware/measurement engine, logging ra : te 1s, filelength 1h, ftp-push every 1h, Hata : naka and zip compressed RINEX files 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS+GLO+GAL+BDS+QZSS+SBAS) Serial Number : (A20, but note the first A5 is used in SINEX) 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 : LEIAT504GG LEIS Serial Number : 200636 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0460 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIS Antenna Radome Number : Antenna Cable Type : RG213 Antenna Cable Length : 7 Date Installed : 2008-08-04T12:00Z Date Removed : 2019-03-06T10:00Z Additional Information : Leica sperical radome used on the AT504GG Chok : e Ring Antenna, Antenna individal and absolute : calibrated by Geo++ (Garbsen, Germany), calibr : ated with radom and Baempfer trivid, PCV-file : aviable by German Institute of Hydrology, Depa : rtement M5 Geodesy 4.2 Antenna Type : LEIAR25.R4 LEIT Serial Number : 726934 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0468 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIT Antenna Radome Number : Antenna Cable Type : RG213 Antenna Cable Length : 7 Date Installed : 2019-03-06T12:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : Leica sperical radome used on the AT504GG Chok : e Ring Antenna, Antenna individal and absolute : calibrated by Geo++ (Garbsen, Germany), calibr : ated with radom and Baempfer trivid, PCV-file : aviable by German Institute of Hydrology, Depa : rtement M5 Geodesy 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 : Benchmark 1 Tied Marker Usage : Tide gauge benchmark Tied Marker CDP Number : Tied Marker Domes Number : Differential Components from GNSS Marker to the tied monument dx (m) : 0.0000 dy (m) : 0.0000 dz (m) : 0.0000 Accuracy (mm) : 2.0 Survey method : Levelling / Vertical Laser Date Measured : 2019-03-06 Additional Informations : dh to gauge datum contact: gnss@bafg.de 5.2 Tied Marker Name : Benchmark 2 Tied Marker Usage : Tide gauge benchmark Tied Marker CDP Number : Tied Marker Domes Number : Differential Components from GNSS Marker to the tied monument dx (m) : 0.0000 dy (m) : 0.0000 dz (m) : 0.0000 Accuracy (mm) : 2.0 Survey method : Levelling / Vertical Laser Date Measured : 2019-03-06 Additional Informations : dh to gauge datum contact: gnss@bafg.de 6. Frequency Standard 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 7.1 Instrumentation Type : Tide gauge Status : permanent Effective Dates : 1976-09-01/CCYY-MM-DD Notes : Floating gauge sensor and radar gauge sensor 8. Meteorological Instrumentation 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.x Pressure Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy (hPa) : (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 : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy (deg C) : (deg C) Aspiration : 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 : 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) 9. Local Ongoing Conditions Possibly Affecting Computes Position 9.1.1 Radio Interferences : Radio antenna (yagi design, wavelength 2m) Observed Degradations : Effective Dates : 2008-08-04/ Additional Information : 2m radio is used for data communication 9.1.2 Radio Interferences : Cell phone GSM antenna Procom CLX900/h Observed Degradations : Effective Dates : 2008-08-04/ Additional Information : Cell phone antenna used by Leica GFU24 GPRS-re : ceiver control modul 9.2.1 Multipath Souces : Covered hand rail (Metal) Effective Dates : 2008-08-04/ Additional Information : Distance between antenna and hand rail approx. : 0.3m 9.3.x Signal Obstructions : (TREES/BUILDINGS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 10. Local Episodic Effects Possibly Affectiting 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 : Federal Institute of Hydrology Germany Preferred Abbreviation : BfG Mailing Adress : Am Mainer Tor 1, 56068 Koblenz, Germany Primary Contact : Contact Name : Bundesanstalt fuer Gewaesserkunde Telephone (primary) : ++49 261 1306 5272 Telephone (secondary) : Fax : ++49 261 1306 5280 E-mail : gnns@bafg.de Secondary Contact : Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 12. Responsible Agency (if different from 11.) Agency : Preferred Abbreviation : Mailing Address : Primary Contact : Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Secondary Contact : Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 13. More Information Primary Data Center : German Federal Institute of Hydrology, Geodesy Secondary Data Center : URL for More Information : www.bafg.de Hardcopy on File : Site Map : ftp://gnss-gast@ftp.bafg.de/station/site Site Diagram : Horizon Mask : Monument Description : ftp://gnss-gast@ftp.bafg.de/station/site Site Pictures : ftp://gnss-gast@ftp.bafg.de/station/site Additional Information : GNSS obersvations free for scientific applicat : ions. FTP Access: contact gnss@bafg.de