CGGN00NGA 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) : Sarah Doelger Date Prepared : 2021-05-05 Report Type : UPDATE If Update: Previous Site Log : cggn_20160329.log Modified/Added Sections : 12 1. Site Identification of the GNSS Monument Site Name : CENTRE FOR GEODESY AND GEODYNAMICS NIGERIA Four Character ID : CGGN Monument Inscription : IERS DOMES Number : 33812M001 CDP Number : Monument Description : PILLAR Height of the Monument : 1.475 m Monument Foundation : EXPOSED BEDROCK Foundation Depth : 0.195 m Marker Description : DIVOT Date Installed : 2009-10-05T00:00Z Geologic Characteristic : BEDROCK Bedrock Type : METAMORPHIC Bedrock Condition : WEATHERED Fracture Spacing : Fault zones nearby : NO Distance/activity : Additional Information : 2. Site Location Information City or Town : TORO State or Province : BAUCHI STATE Country : Nigeria Tectonic Plate : AFRICAN Approximate Position (ITRF) X coordinate (m) : 6201032.5267 Y coordinate (m) : 995277.2635 Z coordinate (m) : 1113815.5634 Latitude (N is +) : +100723.1413 Longitude (E is +) : +0090705.9215 Elevation (m,ellips.) : 916.6953 Additional Information : 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : ZR220014902 Firmware Version : CQ00 Elevation Cutoff Setting : 4 deg Date Installed : 2010-10-06T00:00Z Date Removed : 2015-05-07T00:00Z Temperature Stabiliz. : none Additional Information : Receiver run off splitter with : Trimble NetR9 3.2 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO Serial Number : 01713 Firmware Version : 3.5.8b0-12-52e9 Elevation Cutoff Setting : 0 deg Date Installed : 2015-05-07T00:00Z Date Removed : 2016-03-29T00:42Z Temperature Stabiliz. : none Additional Information : Receiver has board version TRE_G3H_8 3.3 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO Serial Number : 01713 Firmware Version : 3.6.4 Elevation Cutoff Setting : 0 deg Date Installed : 2016-03-29T00:53Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : none Additional Information : Receiver has board version TRE_G3TH_8. : SBAS and QZSS have been turned off. 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 : TRM59800.00 NONE Serial Number : 4923353222 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.1710 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Times LMR 600 Antenna Cable Length : 130 m Date Installed : 2010-10-06T00:00Z Date Removed : 2011-10-01T00:00Z Additional Information : 4.2 Antenna Type : TRM59800.00 NONE Serial Number : 4923353222 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.1710 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Times LMR 600 Antenna Cable Length : 130 m Date Installed : 2011-10-18T16:45Z Date Removed : 2012-05-28T00:00Z Additional Information : New polyphaser lightning/surge suppressor : installed between antenna cable and GPS : receiver splitter, and is grounded to a : copper plate. 4.3 Antenna Type : LEIAR25 NONE Serial Number : 09160009 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.1710 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Times LMR 600 Antenna Cable Length : 130 m Date Installed : 2012-05-28T00:00Z Date Removed : 2012-06-03T12:26Z Additional Information : Previous antenna failed, new antenna installed. 4.4 Antenna Type : ASH701945B_M NONE Serial Number : CR519992105 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.1710 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Times LMR 600 Antenna Cable Length : 130 m Date Installed : 2012-06-03T12:26Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : Previous antenna removed and new antenna 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 : 2010-10-06/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.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) 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 10.1 Date : 2011-08-26/2011-08-26 Event : Transition from .soc to .ash data types. : For soc data types used soc2rnx to do the : conversion to RINEX data. For ash data types : using teqc directly to do the conversion to : RINEX data. 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : Centre for Geodesy and Geodynamics Preferred Abbreviation : CGG Mailing Address : No. 2 Secretariat Road : P.M.B. 011, : Toro, Bauchi State : Nigeria Primary Contact Contact Name : Tahir Abubakar Yakubu Telephone (primary) : +2348035882415 Telephone (secondary) : +2348185462806 Fax : E-mail : y_tahirus@yahoo.com Secondary Contact Contact Name : Mahmud Muhammad Telephone (primary) : +2348036142455 Telephone (secondary) : Fax : E-mail : mahmudumar67@yahoo.com Additional Information : 12. Responsible Agency (if different from 11.) Agency : Jet Propulsion Laboratory Preferred Abbreviation : JPL Mailing Address : 4800 Oak Grove Drive : Pasadena, CA 91109 USA Primary Contact Contact Name : David A. Stowers Telephone (primary) : 818-354-7055 Telephone (secondary) : Fax : 818-393-4965 E-mail : dstowers@jpl.nasa.gov Secondary Contact Contact Name : UNAVCO Network Engineer Telephone (primary) : 303-381-7500 Telephone (secondary) : Fax : 303-381-7451 E-mail : ggn-ops@postal.unavco.org Additional Information : 13. More Information Primary Data Center : JPL Secondary Data Center : CDDIS URL for More Information : Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : Antenna Graphics with Dimensions ASH701945B_M ASH701945C_M ASH701945D_M ASH701945E_M ASH701945G_M +-------+ / \ | | +-----------------+-------------+-----------------+ <-- 0.1006 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0376 +-------------------+-------------+-------------------+ <-- 0.0346 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3794 -->