SGOC00LKA Site Information Form (site log) International GNSS Service See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr_v2.0.txt 0. Form Prepared by (full name) : markus.bradke@gfz-potsdam.de Date Prepared : 2023-01-13 Report Type : UPDATE If Update: Previous Site Log : sgoc_20220211.log Modified/Added Sections : 0, 3.18, 3.19 1. Site Identification of the GNSS Monument Site Name : Surveyor General's Office Colombo Nine Character ID : SGOC00LKA Monument Inscription : Pillar on top Surveyor General's Office IERS DOMES Number : 23501M003 CDP Number : Monument Description : PILLAR Height of the Monument : 1.55 m Monument Foundation : ROOF Foundation Depth : Marker Description : BRASS BOLT Date Installed : 2011-12-12T00:00Z Geologic Characteristic : Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : 2. Site Location Information City or Town : Narahenpita, Colombo State or Province : Western Province Country or Region : LKA Tectonic Plate : INDIAN Approximate Position (ITRF) X coordinate (m) : 1113280.0609 Y coordinate (m) : 6233644.2886 Z coordinate (m) : 760276.9549 Latitude (N is +) : +065331.47 Longitude (E is +) : +0795227.04 Elevation (m,ellips.) : -78.5 Additional Information : 3. GNSS Receiver Information 3.1 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO+GAL Serial Number : 349 Firmware Version : 3.3.5 Elevation Cutoff Setting : 0 deg Date Installed : 2011-12-12T00:00Z Date Removed : 2012-10-09T00:25Z Temperature Stabiliz. : Additional Information : 3.2 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO+GAL Serial Number : 349 Firmware Version : 3.4.4b0 Elevation Cutoff Setting : 0 deg Date Installed : 2012-10-09T00:30Z Date Removed : 2012-10-25T10:00Z Temperature Stabiliz. : Additional Information : 3.3 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO+GAL+SBAS Serial Number : 349 Firmware Version : 3.4.4b0 Elevation Cutoff Setting : 0 deg Date Installed : 2012-10-25T10:00Z Date Removed : 2013-01-11T11:10Z Temperature Stabiliz. : Additional Information : 3.4 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO+GAL+SBAS Serial Number : 349 Firmware Version : 3.4.7 Elevation Cutoff Setting : 0 deg Date Installed : 2013-01-11T11:11Z Date Removed : 2015-09-15T13:59Z Temperature Stabiliz. : Additional Information : 3.5 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO+GAL+SBAS Serial Number : 349 Firmware Version : 3.5.10 Elevation Cutoff Setting : 0 deg Date Installed : 2015-09-15T13:59Z Date Removed : 2016-10-25T14:59Z Temperature Stabiliz. : Additional Information : 3.6 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO+GAL+SBAS Serial Number : 349 Firmware Version : 3.6.7 Elevation Cutoff Setting : 0 deg Date Installed : 2016-10-25T15:00Z Date Removed : 2018-10-04T10:00Z Temperature Stabiliz. : Additional Information : enables tracking of E01/E02 3.7 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS Serial Number : 4171601 Firmware Version : 3.7.4b0-193-7438 Elevation Cutoff Setting : 0 deg Date Installed : 2018-10-04T10:00Z Date Removed : 2018-12-11T08:34Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 3.8 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS Serial Number : 4171601 Firmware Version : 3.7.5 Elevation Cutoff Setting : 0 deg Date Installed : 2018-12-11T08:34Z Date Removed : 2019-01-24T13:58Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 3.9 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS Serial Number : 4171601 Firmware Version : 3.7.5p1 Elevation Cutoff Setting : 0 deg Date Installed : 2019-01-24T13:59Z Date Removed : 2019-04-09T12:45Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 3.10 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS Serial Number : 4171601 Firmware Version : 3.7.6 Elevation Cutoff Setting : 0 deg Date Installed : 2019-04-09T12:46Z Date Removed : 2019-08-27T13:14Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 3.11 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 4171601 Firmware Version : 3.7.6 Elevation Cutoff Setting : 0 deg Date Installed : 2019-08-27T13:15Z Date Removed : 2019-10-24T13:43Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 : Removed IRNSS and SBAS from tracking, : Receiver might have problems with full : constellation GNSS tracking 3.12 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 4171601 Firmware Version : 3.7.7 Elevation Cutoff Setting : 0 deg Date Installed : 2019-10-24T13:44Z Date Removed : 2019-11-12T14:32Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 3.13 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 4171601 Firmware Version : 3.7.8b0-15-be9c Elevation Cutoff Setting : 0 deg Date Installed : 2019-11-12T14:33Z Date Removed : 2020-02-27T10:34Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 3.14 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS Serial Number : 4171601 Firmware Version : 3.7.9 Elevation Cutoff Setting : 0 deg Date Installed : 2020-02-27T10:35Z Date Removed : 2020-11-10T10:57Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 : Due to bug in receiver firmware receiver : started tracking IRNSS+SBAS 3.15 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 4171601 Firmware Version : 3.7.10 Elevation Cutoff Setting : 0 deg Date Installed : 2020-11-10T10:58Z Date Removed : 2021-06-16T10:17Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 3.16 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 4171601 Firmware Version : 4.1.01-210527 Elevation Cutoff Setting : 0 deg Date Installed : 2021-06-16T10:18Z Date Removed : 2021-06-21T08:29Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 3.17 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS Serial Number : 4171601 Firmware Version : 4.1.01-210527 Elevation Cutoff Setting : 0 deg Date Installed : 2021-06-21T08:30Z Date Removed : 2022-02-11T10:46Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 : deactivated clock steering 3.18 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS Serial Number : 4171601 Firmware Version : 4.2.00-211012 Elevation Cutoff Setting : 0 deg Date Installed : 2022-02-11T10:47Z Date Removed : 2023-01-13T14:18Z Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 3.19 Receiver Type : JAVAD TRE_3 Satellite System : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS Serial Number : 4171601 Firmware Version : 4.2.01-220630 Elevation Cutoff Setting : 0 deg Date Installed : 2023-01-13T14:19Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : Additional Information : tinyPC/4 S/N:3 : Board revision TRE_3_4 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 : JAV_RINGANT_G3T NONE Serial Number : 333 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.1220 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 : Date Installed : 2011-12-12T00:00Z Date Removed : 2018-07-21T23:59Z Additional Information : 4.2 Antenna Type : JAVRINGANT_G5T NONE Serial Number : 6076C Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.1300 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 : Date Installed : 2018-07-22T00:00Z Date Removed : 2018-09-20T04:45Z Additional Information : 4.3 Antenna Type : JAVRINGANT_G5T NONE Serial Number : 6076C Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.1300 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 : Ecoflex 10 Antenna Cable Length : 15 m Date Installed : 2018-09-20T05:20Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : antenna cable change 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 : 2011-12-12/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 : PTU300 Manufacturer : Vaisala Serial Number : E4551344 Data Sampling Interval : 300 sec Accuracy (% rel h) : 1.5 Aspiration : NATURAL Height Diff to Ant : -0.7 m Calibration date : 2009-12-18 Effective Dates : 2011-12-12/2022-02-10 Notes : The sensor is part of a Vaisala : PTU300 meteo station 8.1.2 Humidity Sensor Model : PTU300 Manufacturer : Vaisala Serial Number : E5330018 Data Sampling Interval : 300 sec Accuracy (% rel h) : 1.5 Aspiration : NATURAL Height Diff to Ant : -0.7 m Calibration date : 2020-06-01 Effective Dates : 2022-02-11/CCYY-MM-DD Notes : The sensor is part of a Vaisala : PTU300 meteo station 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 : PTU300 Manufacturer : Vaisala Serial Number : E4551344 Data Sampling Interval : 300 sec Accuracy : 0.1 hPa Height Diff to Ant : -4.0 m Calibration date : 2009-12-18 Effective Dates : 2011-12-12/2022-02-10 Notes : The sensor is part of a Vaisala : PTU300 meteo station 8.2.2 Pressure Sensor Model : PTU300 Manufacturer : Vaisala Serial Number : E5330018 Data Sampling Interval : 300 sec Accuracy : 0.1 hPa Height Diff to Ant : -4.0 m Calibration date : 2020-06-11 Effective Dates : 2022-02-11/CCYY-MM-DD Notes : The sensor is part of a Vaisala : PTU300 meteo station 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 : PTU300 Manufacturer : Vaisala Serial Number : E4551344 Data Sampling Interval : 300 sec Accuracy : 0.1 deg C Aspiration : NATURAL Height Diff to Ant : -0.7 m Calibration date : 2009-12-18 Effective Dates : 2011-12-12/2022-02-10 Notes : The sensor is part of a Vaisala : PTU300 meteo station 8.3.2 Temp. Sensor Model : PTU300 Manufacturer : Vaisala Serial Number : E5330018 Data Sampling Interval : 300 sec Accuracy : 0.1 deg C Aspiration : NATURAL Height Diff to Ant : -0.7 m Calibration date : 2020-06-01 Effective Dates : 2022-02-11/CCYY-MM-DD Notes : The sensor is part of a Vaisala : PTU300 meteo station 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 : Surveyor General's Office Colombo Preferred Abbreviation : SGOC Mailing Address : Deputy Surveyor General (LIS/GIS) : P.O. Box 506 : Colombo : Sri Lanka 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 : IGN URL for More Information : https://gnss.gfz-potsdam.de Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Y Additional Information : Antenna Graphics with Dimensions JAVRINGANT_G5T --------- <-- 0.0614 / \ / \ +-------------------------------------------------+ <-- 0.0410 TCR | | | +-------------------+ | | | \ / | | | | \ / | | | | +--x--+ | | <-- 0.0000 BAM=ARP +--------------+-------------------+--------------+ <-- -0.0260 BCR RXC=NRP <-- 0.3260 --> JAV_RINGANT_G3T --------- <-- 0.0614 / \ / \ +-------------------------------------------------+ <-- 0.0410 TCR | | | +-------------------+ | | | \ / | | | | \ / | | | | +--x--+ | | <-- 0.0000 BAM=ARP +--------------+-------------------+--------------+ <-- -0.0260 BCR RXC=NRP <-- 0.3260 -->