DAKA00SEN Site Information Form (site log) International GNSS Service See Instructions at: https://ftp.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : markus.bradke@gfz-potsdam.de Date Prepared : 2021-10-28 Report Type : UPDATE If Update: Previous Site Log : daka_20110602.log Modified/Added Sections : 0, 1, 8.3.1, 11, 12, 13 1. Site Identification of the GNSS Monument Site Name : Dakar Universite Cheick Anto Diop Four Character ID : DAKA Monument Inscription : IERS DOMES Number : 34106M001 CDP Number : Monument Description : PILLAR Height of the Monument : 0.80 m Monument Foundation : ROOF Foundation Depth : Marker Description : BRASS NAIL Date Installed : 2002-03-21T12:00Z Geologic Characteristic : Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : decommisioned as of 2007-07-01 2. Site Location Information City or Town : Dakar State or Province : Country : Senegal Tectonic Plate : AFRICAN Approximate Position (ITRF) X coordinate (m) : 5886435.5704 Y coordinate (m) : -1852014.7801 Z coordinate (m) : 1606349.4404 Latitude (N is +) : +144105.86 Longitude (E is +) : -0172753.40 Elevation (m,ellips.) : 63.1 Additional Information : 3. GNSS Receiver Information 3.1 Receiver Type : AOA SNR-8000 ACT Satellite System : GPS Serial Number : 2003 Firmware Version : 3.3.32.3 Elevation Cutoff Setting : 3 deg Date Installed : 2002-03-21T12:00Z Date Removed : 2004-01-13T15:00Z Temperature Stabiliz. : none Additional Information : 3.2 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP00791 Firmware Version : CC00 Elevation Cutoff Setting : 3 deg Date Installed : 2004-01-14T00:00Z Date Removed : 2004-08-11T00:00Z Temperature Stabiliz. : none Additional Information : 3.3 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : IR200304012 Firmware Version : CN00 Elevation Cutoff Setting : 3 deg Date Installed : 2004-08-12T00:00Z Date Removed : 2005-11-15T00:00Z Temperature Stabiliz. : none Additional Information : 3.4 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP00796 Firmware Version : CC00 Elevation Cutoff Setting : 3 deg Date Installed : 2005-11-15T00:00Z Date Removed : 2006-03-15T00:00Z Temperature Stabiliz. : none Additional Information : 3.5 Receiver Type : AOA SNR-8000 ACT Satellite System : GPS Serial Number : 2001 Firmware Version : 3.3.32.3 Elevation Cutoff Setting : 3 deg Date Installed : 2006-03-16T00:00Z Date Removed : 2007-01-23T00:00Z Temperature Stabiliz. : none Additional Information : 3.6 Receiver Type : SEPT POLARX2 Satellite System : GPS Serial Number : 1375 Firmware Version : 2.6.0 Elevation Cutoff Setting : 0 deg Date Installed : 2007-01-23T00:00Z Date Removed : 2007-07-01T00:00Z Temperature Stabiliz. : Additional Information : 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 : AOAD/M_T NONE Serial Number : 368 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 : NONE Radome Serial Number : Antenna Cable Type : Antenna Cable Length : 26.00 m Date Installed : 2002-03-21T12:00Z Date Removed : 2004-11-30T12:00Z Additional Information : 4.2 Antenna Type : ASH701945E_M NONE Serial Number : CR6200327015 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 : NONE Radome Serial Number : Antenna Cable Type : Antenna Cable Length : 26.00 m Date Installed : 2004-12-01T00:00Z Date Removed : 2007-01-23T00:00Z Additional Information : 4.3 Antenna Type : TPSCR3_GGD NONE Serial Number : 217-0508 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0470 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Antenna Cable Length : 26.00 m Date Installed : 2007-01-23T00:00Z Date Removed : 2007-07-01T00:00Z Additional Information : 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 : Effective Dates : 2002-03-21/CCYY-MM-DD Notes : 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 : PTU200 Class A Manufacturer : Vaisala Serial Number : U4850002 Data Sampling Interval : 600 sec Accuracy (% rel h) : 3 Aspiration : UNASPIRATED Height Diff to Ant : -5.30 m Calibration date : 2001-02-12 Effective Dates : 2002-03-21/2007-01-01 Notes : 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 : PTU200 Class A Manufacturer : Vaisala Serial Number : U4850002 Data Sampling Interval : 600 sec Accuracy : 0.1 hPa Height Diff to Ant : -8.00 m Calibration date : 2001-02-12 Effective Dates : 2002-03-21/2003-02-15 Notes : 8.2.2 Pressure Sensor Model : PTU200 Class A Manufacturer : Vaisala Serial Number : X3710008 Data Sampling Interval : 600 sec Accuracy : 0.1 hPa Height Diff to Ant : -8.00 m Calibration date : (CCYY-MM-DD) Effective Dates : 2003-03-15/2007-01-01 Notes : 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 : PTU200 Class A Manufacturer : Vaisala Serial Number : U4850002 Data Sampling Interval : 600 sec Accuracy : 0.1 deg C Aspiration : UNASPIRATED Height Diff to Ant : -5.30 m Calibration date : 2001-02-12 Effective Dates : 2002-03-21/2007-01-01 Notes : 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.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/BUILDINGS/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 : Universite Cheikh Anta Diop Preferred Abbreviation : UCAD Mailing Address : Faculte des Sciences et Techniques : Department de Physique : B.P. 5353 Dakar-Fann : Senegal Primary Contact Contact Name : GFZ Network Operator Telephone (primary) : (+49)-331-2881746 Telephone (secondary) : Fax : E-mail : gnss@gfz-potsdam.de Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 12. Responsible Agency (if different from 11.) Agency : Helmholtz Centre Potsdam : GFZ German Research Centre for Geosciences : Geodesy Preferred Abbreviation : GFZ Mailing Address : Telegrafenberg A17 : D-14473 Potsdam : Germany Primary Contact Contact Name : GFZ Network Operator Telephone (primary) : (+49)-331-2881746 Telephone (secondary) : Fax : E-mail : gnss@gfz-potsdam.de Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 13. More Information Primary Data Center : CDDIS Secondary Data Center : BKG URL for More Information : Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : Antenna Graphics with Dimensions AOAD/M_T ----- / \ | | +-------------------------------------------------+ <-- 0.1020 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0380 +-------------------+-------------+-------------------+ <-- 0.0350 BCR | | =| | +------x------+ <-- 0.0000 BPA=ARP RXC=NRP <-- 0.3810 --> ASH701945E_M +-------+ / \ | | +-----------------+-------------+-----------------+ <-- 0.1006 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0376 +-------------------+-------------+-------------------+ <-- 0.0346 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP NOM=NRP <-- 0.3794 --> TPSCR3_GGD --------- / \ | | +-------------------------------------------------+ <-- 0.0710 TCR | | | | | | | | +-----------------+-------------+-----------------+ <-- 0.0030 BCR +-----x-----+ <-- 0.0000 BPA=ARP NOM=NRP <-- 0.3260 -->