NKLG Site Information Form International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Jean-Paul CARDALIAGUET Date Prepared : 2012-06-08 Report Type : UPDATE If Update: Previous Site Log : nklg_20111013.log Modified/Added Sections : 3.6, 3.7 1. Site Identification of the GNSS Monument Site Name : N'KOLTANG (GABON) Four Character ID : NKLG Monument Inscription : None IERS DOMES Number : 32809M002 CDP Number : Not assigned Monument Description : STEEL MAST Height of the Monument : 3M Monument Foundation : CONCRETE BLOCK (1M BY 1M) Foundation Depth : (m) Marker Description : DOMED BRASS NAIL Date Installed : 2000-02-10 Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/11-50 cm/51-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : (multiple lines) : Antenna supported by a 30 CM SIDED : VERY RIGID STEEL MAST, 3M HIGH 2. Site Location Information City or Town : Libreville State or Province : Country : Gabon Tectonic Plate : African Plate Approximate Position (ITRF) X coordinate (m) : 6287385.84 Y coordinate (m) : 1071574.39 Z coordinate (m) : 39132.75 Latitude (N is +) : +002114.06 Longitude (E is +) : +0094019.64 Elevation (m,ellips.) : 31.48 Additional Information : Station located in the permise : of Ariane tracking station 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE 4000SSI Satellite System : GPS Serial Number : 3919A25765 Firmware Version : 7.29 Elevation Cutoff Setting : (deg) Date Installed : 2000-02-10 Date Removed : 2008-01-24T10:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.2 Receiver Type : TRIMBLE 4000SSI Satellite System : GPS Serial Number : 3919A25765 Firmware Version : 7.29 Elevation Cutoff Setting : 03 Date Installed : 2008-01-24T10:02Z Date Removed : 2010-05-03T11:30Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.3 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4819K55803 Firmware Version : 4.03 Elevation Cutoff Setting : 03 Date Installed : 2010-05-05T16:00Z Date Removed : 2010-10-26T08:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.4 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4819K55803 Firmware Version : 4.17 Elevation Cutoff Setting : 03 Date Installed : 2010-10-26T08:15Z Date Removed : 2011-05-26T12:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.5 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5038K70406 Firmware Version : 4.22 Elevation Cutoff Setting : 03 Date Installed : 2011-05-26T12:30Z Date Removed : 2011-10-13T09:30Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.6 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5038K70406 Firmware Version : 4.42 Elevation Cutoff Setting : 03 Date Installed : 2011-10-13T09:30Z Date Removed : 2012-06-08T14:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.7 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 5038K70406 Firmware Version : 4.60 Elevation Cutoff Setting : 03 Date Installed : 2012-06-08T14:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS+GLO+GAL+BDS+QZSS+SBAS) Serial Number : (A5) 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 : TRM29659.00 NONE Serial Number : 0220160506 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 003.1090 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : 60 Date Installed : 2000-02-10 Date Removed : 2010-05-03T11:30Z Additional Information : (multiple lines) 4.2 Antenna Type : TRM59800.00 SCIS Serial Number : 4811A48439 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 003.043 Marker->ARP North Ecc(m) : -000.0015 Marker->ARP East Ecc(m) : -000.0025 Alignment from True N : Antenna Radome Type : SCIS Radome Serial Number : 0281 Antenna Cable Type : TRIMBLE Antenna Cable Length : 30 Date Installed : 2010-05-05T16:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 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 : DORIS antenna ref. pt. (LIBA) Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : Tied Marker DOMES Number : 32809S002 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 2.745 dy (m) : -0.155 dz (m) : 14.392 Accuracy (mm) : 2 Survey method : GPS CAMPAIGN/TRIANGULATION Date Measured : 1999-02-01 Additional Information : Survey by IGN-FRANCE : Exact date in Feb 1999 not known 5.2 Tied Marker Name : DORIS antenna ref. pt. (LIBB) Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : Tied Marker DOMES Number : 32809S003 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 2.994 dy (m) : -0.105 dz (m) : 14.392 Accuracy (mm) : 2 Survey method : GPS CAMPAIGN Date Measured : 2005-11-29 Additional Information : Survey by IGN-FRANCE : Exact date in nov 2005 not known : between 11-29 to 11-31 5.3 Tied Marker Name : DORIS antenna ref. pt. (LICB) Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : Tied Marker DOMES Number : 32809S004 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 1.892 dy (m) : 2.034 dz (m) : 10.527 Accuracy (mm) : 2 Survey method : GPS CAMPAIGN Date Measured : 2005-11-31 Additional Information : Survey by IGN-FRANCE : Exact date in nov 2005 not known : between 11-30 to 12-02 5.4 Tied Marker Name : DORIS antenna ref. pt. (LICB) Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : Tied Marker DOMES Number : 32809S004 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 1.889 dy (m) : 2.032 dz (m) : 10.524 Accuracy (mm) : 2 Survey method : GPS CAMPAIGN Date Measured : 2010-05-05 Additional Information : Survey by IGN-FRANCE 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) : dy (m) : dz (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 : EXTERNAL Input Frequency : 10 MHZ Effective Dates : 2000-07-17T10:30Z/2010-05-03T11:30Z Notes : (multiple lines) 6.2 Standard Type : INTERNAL Input Frequency : Effective Dates : 2010-05-05T16:00Z/CCYY-MM-DD Notes : (multiple lines) 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 : DORIS Status : PERMANENT Effective Dates : 1998-01-10/CCYY-MM-DD Notes : 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 : Manufacturer : Serial Number : Data Sampling Interval : 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) 8.1.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 : Manufacturer : Serial Number : Data Sampling Interval : Accuracy : (mbar) 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) 8.3.1 Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : 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) 8.3.x Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (hPa) 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) 8.4.1 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) 8.4.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) 8.5.1 Other Instrumentation : (multiple lines) 8.5.x Other Instrumentation : 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degredations : (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/BUILDLINGS/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 : Centre National d'Etudes Spatiales Preferred Abbreviation : CNES Mailing Address : CG/SDO/AM TLM Station ARIANE Libreville : BP 3943 LIBREVILLE GABON Primary Contact Contact Name : Pierre CLAUZEL Chef de Mission Diplomatique : ASE Chef de Station ARIANE Libreville Telephone (primary) : (241) 76 11 39 Telephone (secondary) : Fax : (241) 77 33 51 E-mail : tmlbv.ase@inet.ga Secondary Contact Contact Name : Michel DUVERGER Telephone (primary) : 00 241 76 11 39 Telephone (secondary) : Fax : E-mail : antiope.tm.lbv@inet.ga Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : Centre National d'Etudes Spatiales Preferred Abbreviation : CNES Mailing Address : CNES DCT/OP/EM - 18, avenue Edouard Belin : 31401 Toulouse cedex 09 - France Primary Contact Contact Name : Jean-Paul Cardaliaguet Telephone (primary) : (33) 5.61.27.31.98 Telephone (secondary) : Fax : (33) 5 61 28 15 36 E-mail : jean-paul.cardaliaguet@cnes.fr Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 13. More Information Primary Data Center : IGN Secondary Data Center : CDDIS URL for More Information : Hardcopy on File Site Map : (Y or URL) Site Diagram : X Horizon Mask : X Monument Description : (Y) Site Pictures : (Y) Additional Information : (multiple lines) Antenna Graphics with Dimensions TRM59800.00 ----- / \ | | +-------------------------------------------------+ <-- 0.1020 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0381 +-------------------+-------------+-------------------+ <-- 0.0350 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3810 -->