SBOK00ZAF Site Information Form (site log) International GNSS Service See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Albertus van der Merwe Date Prepared : 2022-03-29 Report Type : UPDATE If Update: Previous Site Log : sbok_20190330.log Modified/Added Sections : 3.5,3.6,11 1. Site Identification of the GNSS Monument Site Name : SPRINGBOK Four Character ID : SBOK Monument Inscription : NONE IERS DOMES Number : 30320M001 CDP Number : Monument Description : CONCRETE PILLAR Height of the Monument : 2.4 m Monument Foundation : Foundation Depth : 0.5 m Marker Description : BOTTOM OF ANTENNA MOUNT Date Installed : 2000-02-08T00:00Z Geologic Characteristic : BEDROCK/GRAVEL Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : 2. Site Location Information City or Town : SPRINGBOK State or Province : NORTHERN CAPE Country : South Africa Tectonic Plate : AFRICAN Approximate Position (ITRF) X coordinate (m) : 5279492.0167 Y coordinate (m) : 1703114.2749 Z coordinate (m) : -3139092.9922 Latitude (N is +) : -294009.56 Longitude (E is +) : +0175245.15 Elevation (m,ellips.) : 1043.1 Additional Information : ITRF 2005 (2008-01-09 12:00:00) 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4605204676 Firmware Version : Nav 1.20 Boot 1.16 Elevation Cutoff Setting : 5 deg Date Installed : 2006-10-15T00:00Z Date Removed : 2014-07-07T00:00Z Temperature Stabiliz. : NONE Additional Information : 3.2 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4605204652 Firmware Version : Nav 1.2 / Boot 1.16 Elevation Cutoff Setting : 5 deg Date Installed : 2014-07-08T00:00Z Date Removed : 2017-01-04T00:00Z Temperature Stabiliz. : Additional Information : 3.3 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4605204676 Firmware Version : Nav 1.2 / Boot 1.16 Elevation Cutoff Setting : 5 deg Date Installed : 2017-01-04T00:00Z Date Removed : 2017-11-03T18:00Z Temperature Stabiliz. : Additional Information : 3.4 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4603204334 Firmware Version : Nav 1.2 / Boot 1.16 Elevation Cutoff Setting : 5 deg Date Installed : 2017-11-03T18:10Z Date Removed : 2019-03-30T00:00Z Temperature Stabiliz. : Additional Information : 3.5 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4603204334 Firmware Version : Nav 1.3-2 / Boot 1.16 Elevation Cutoff Setting : 5 deg Date Installed : 2019-03-30T00:00Z Date Removed : 2022-03-29T10:00Z Temperature Stabiliz. : Additional Information : 3.6 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO Serial Number : 6141R40050 Firmware Version : Nav 5.44 Boot 5.44 Elevation Cutoff Setting : 5 deg Date Installed : 2022-03-29T10:00Z Date Removed : CCYY-MM-DDThh:mmZ 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 : ASH701941.B SCIS Serial Number : CRL1999100113 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0 Marker->ARP North Ecc(m) : 0.0 Marker->ARP East Ecc(m) : 0.0 Alignment from True N : 0 deg Antenna Radome Type : SCIS Radome Serial Number : Antenna Cable Type : Suhner RG 214 Hiflex Antenna Cable Length : 45 m Date Installed : 2000-02-29T00:00Z Date Removed : CCYY-MM-DDThh:mmZ 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 : (CCYY-MM-DD/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 : HPM 35A Manufacturer : VAISALA Serial Number : Data Sampling Interval : 60 sec Accuracy (% rel h) : APPROX. 3 Aspiration : NATURAL Height Diff to Ant : Calibration date : 1998 Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) 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 : PTB 101B Manufacturer : VAISALA Serial Number : A4510022 Data Sampling Interval : 60 sec Accuracy : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : 2008-07-01/CCYY-MM-DD Notes : THE PREVIOUS ONE WORKED FOR APPROX. 20 YEARS 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.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 : CHIEF DIR.: NATIONAL GEOSPATIAL INFORMATION Preferred Abbreviation : NGI Mailing Address : PRIVATE BAG X10,Mowbray,7705,SOUTH AFRICA Primary Contact Contact Name : TRIGNET Telephone (primary) : +27 21 658 4300 Telephone (secondary) : Fax : +27 21 658 4357 E-mail : trignet@dalrrd.gov.za Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 12. Responsible Agency (if different from 11.) Agency : NONE 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 : ftp://igs.ign.fr/ Secondary Data Center : ftp://igs.ensg.eu/ URL for More Information : www.trignet.co.za Hardcopy on File Site Map : URL Site Diagram : NONE Horizon Mask : Monument Description : CONCRETE BEACON BUILT ON ROCK/GRAVEL Site Pictures : NONE Additional Information : Antenna Graphics with Dimensions (insert text graphic from file antenna.gra) ASH701941.B +---------+ / + \ | + | +-----------------+-------------+------------------+ <-- 0.1008 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0378 +-------------------+-------------+--------------------+ <-- 0.0348 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3794 -->