SSIA00SLV 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) : David Maggert Date Prepared : 2020-01-27 Report Type : UPDATE If Update: Previous Site Log : ssia_20190610.log Modified/Added Sections : 3.12, 3.13 1. Site Identification of the GNSS Monument Site Name : Ilopango Airport Nine Character ID : SSIA00SLV Monument Inscription : IERS DOMES Number : 41401S001 CDP Number : none Monument Description : building mount Height of the Monument : Monument Foundation : Foundation Depth : Marker Description : Date Installed : 2000-09-28T00:00Z Geologic Characteristic : Bedrock Type : Bedrock Condition : Fracture Spacing : unknown Fault zones nearby : Distance/activity : Additional Information : Re-assigned domes number on Oct. 10, 2000. 2. Site Location Information City or Town : San Salvador State or Province : Country or Region : SLV Tectonic Plate : CARIBBEAN Approximate Position (ITRF) X coordinate (m) : 95610.0615 Y coordinate (m) : -6197817.1521 Z coordinate (m) : 1500617.9412 Latitude (N is +) : +134150.28 Longitude (E is +) : -0890658.32 Elevation (m,ellips.) : 664.4 Additional Information : 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE 4000SSI Satellite System : GPS Serial Number : 3937A26105 Firmware Version : 7.29 Elevation Cutoff Setting : Date Installed : 2000-09-28T00:00Z Date Removed : 2007-03-22T00:00Z Temperature Stabiliz. : Additional Information : 3.2 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4520250849 Firmware Version : 1.13 Elevation Cutoff Setting : 5 deg Date Installed : 2007-03-22T00:00Z Date Removed : 2012-03-05T17:32Z Temperature Stabiliz. : Additional Information : 3.3 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5133K77673 Firmware Version : 4.42 Elevation Cutoff Setting : 0 deg Date Installed : 2012-03-05T17:32Z Date Removed : 2012-06-07T19:00Z Temperature Stabiliz. : Additional Information : 3.4 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5133K77673 Firmware Version : 4.60 Elevation Cutoff Setting : 0 deg Date Installed : 2012-06-07T19:00Z Date Removed : 2012-12-06T23:06Z Temperature Stabiliz. : Additional Information : 3.5 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5133K77673 Firmware Version : 4.62 Elevation Cutoff Setting : 0 deg Date Installed : 2012-12-06T23:06Z Date Removed : 2013-03-07T19:48Z Temperature Stabiliz. : Additional Information : 3.6 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5133K77673 Firmware Version : 4.70 Elevation Cutoff Setting : 0 deg Date Installed : 2013-03-07T19:48Z Date Removed : 2013-07-09T20:15Z Temperature Stabiliz. : Additional Information : 3.7 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5133K77673 Firmware Version : 4.80 Elevation Cutoff Setting : 0 deg Date Installed : 2013-07-09T20:15Z Date Removed : 2013-08-23T19:49Z Temperature Stabiliz. : Additional Information : 3.8 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5133K77673 Firmware Version : 4.81 Elevation Cutoff Setting : 0 deg Date Installed : 2013-08-23T19:49Z Date Removed : 2014-05-20T21:25Z Temperature Stabiliz. : Additional Information : 3.9 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5133K77673 Firmware Version : 4.85 Elevation Cutoff Setting : 0 deg Date Installed : 2014-05-20T21:25Z Date Removed : 2015-07-09T21:23Z Temperature Stabiliz. : Additional Information : 3.10 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5133K77673 Firmware Version : 5.01 Elevation Cutoff Setting : 0 deg Date Installed : 2015-07-09T21:23Z Date Removed : 2016-09-23T21:55Z Temperature Stabiliz. : Additional Information : 3.11 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5133K77673 Firmware Version : 5.14 Elevation Cutoff Setting : 0 deg Date Installed : 2016-09-23T21:55Z Date Removed : 2019-05-31T16:44Z Temperature Stabiliz. : Additional Information : 3.12 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5041K71033 Firmware Version : 5.37 Elevation Cutoff Setting : 0 deg Date Installed : 2019-05-31T16:44Z Date Removed : 2020-01-24T20:22Z Temperature Stabiliz. : Additional Information : 3.13 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL Serial Number : 5041K71033 Firmware Version : 5.42 Elevation Cutoff Setting : 10 deg Date Installed : 2020-01-24T20:22Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : Additional Information : Also tracking BDS, but that requires RINEX3 : which is not provided because the Trimble : RINEX3 converter does not provide the correct : antenna model number in drop down list. : Elevation cutoff found to be 10 degrees. It : is not known how long the elevation cutoff has : been 10 degrees. It is very likely previous : receiver entries have an elevation cutoff of : 10 degrees. 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 : TRM29659.00 UNAV Serial Number : 0220191259 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : Antenna Radome Type : UNAV Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 2000-09-28T00:00Z Date Removed : 2007-03-22T00:00Z Additional Information : 4.2 Antenna Type : TRM29659.00 UNAV Serial Number : 0220356936 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : Antenna Radome Type : UNAV Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 2007-03-22T00:00Z Date Removed : 2019-05-31T16:44Z Additional Information : 4.3 Antenna Type : TRM59800.80 SCIS Serial Number : 4623A16423 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : Antenna Radome Type : SCIS Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 2019-05-31T16:44Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : new antenna and radome 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 : 2000-08-28/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 : WXT520 Manufacturer : Vaisala Serial Number : G3930003 Data Sampling Interval : 15 sec Accuracy (% rel h) : Aspiration : Height Diff to Ant : 1.5 m Calibration date : Effective Dates : 2012-03-05/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 : WXT520 Manufacturer : Vaisala Serial Number : G3930003 Data Sampling Interval : 15 sec Accuracy : Height Diff to Ant : 1.5 m Calibration date : Effective Dates : 2012-03-05/CCYY-MM-DD 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 : WXT520 Manufacturer : Vaisala Serial Number : G3930003 Data Sampling Interval : 15 sec Accuracy : Aspiration : Height Diff to Ant : 1.5 m Calibration date : Effective Dates : 2012-03-05/CCYY-MM-DD 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 : Centro Nacional de Registros Preferred Abbreviation : CNR Mailing Address : 1 Calle Pte. y 43 Av. Nte. #2310 : San Salvador, El Salvador Primary Contact Contact Name : Wilfredo Amaya Zelaya Telephone (primary) : 503-260-7920 x 235 Telephone (secondary) : 503-260-8000 Fax : 503-260-7919 E-mail : wamaya@cnr.gob.sv Secondary Contact Contact Name : Carlos Adrian Rodriguez Telephone (primary) : 503-260-7920 Telephone (secondary) : Fax : 503-260-7919 E-mail : crodriguez@ign.cnr.gob.sv Additional Information : 12. Responsible Agency (if different from 11.) Agency : (multiple lines) Preferred Abbreviation : (A10) Mailing Address : (multiple lines) Primary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 13. More Information Primary Data Center : CDDIS Secondary Data Center : IGN URL for More Information : http://www.unavco.org Hardcopy on File Site Map : Site Diagram : Horizon Mask : (Y) Monument Description : (Y) Site Pictures : (Y) Additional Information : Antenna Graphics with Dimensions TRM29659.00 ----- / \ | | +-------------------------------------------------+ <-- 0.1020 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0381 +-------------------+-------------+-------------------+ <-- 0.0350 BCR | | =| | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3810 -->