SSIA Site Information Form (site log) International GNSS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : David Maggert Date Prepared : 2013-02-12 Report Type : UPDATE If Update: Previous Site Log : ssia_20120612.log Modified/Added Sections : 3.4, 3.5 1. Site Identification of the GNSS Monument Site Name : Ilopango Airport Four Character ID : SSIA Monument Inscription : IERS DOMES Number : 41401S001 CDP Number : none Monument Description : building mount Height of the Monument : (m) Monument Foundation : (STEEL RODS, CONCRETE BLOCK, ROOF, etc) Foundation Depth : (m) Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 2000-09-28T00:00Z Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/10-50 cm/50-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : (multiple lines) : Re-assigned domes number on Oct. 10, 2000. 2. Site Location Information City or Town : San Salvador State or Province : Country : El Salvador 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 : (multiple lines) 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE 4000SSI Satellite System : GPS Serial Number : 3937A26105 Firmware Version : 7.29 Elevation Cutoff Setting : (deg) Date Installed : 2000-09-28T00:00Z Date Removed : 2007-03-22T00:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.2 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4520250849 Firmware Version : 1.13 Elevation Cutoff Setting : 5 Date Installed : 2007-03-22T00:00Z Date Removed : 2012-03-05T17:32Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.3 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5133K77673 Firmware Version : 4.42 Elevation Cutoff Setting : 0 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 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 Date Installed : 2012-12-06T23:06Z 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 : TRM29659.00 UNAV Serial Number : 0220191259 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0 Marker->ARP North Ecc(m) : (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : Antenna Radome Type : UNAV Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : Date Installed : 2000-09-28T00:00Z Date Removed : 2007-03-22T00:00Z Additional Information : (multiple lines) 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 : (vendor & type number) Antenna Cable Length : Date Installed : 2007-03-22T00:00Z 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.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 : (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.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 Accuracy (% rel h) : Aspiration : Height Diff to Ant : 1.5 Calibration date : (CCYY-MM-DD) 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 Accuracy : Height Diff to Ant : 1.5 Calibration date : CCYY-MM-DD 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 Accuracy : Aspiration : Height Diff to Ant : 1.5 Calibration date : CCYY-MM-DD 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/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 : 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 : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : 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 : UNAVCO Secondary Data Center : CDDIS URL for More Information : http://www.unavco.org Hardcopy on File Site Map : (Y or URL) 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 -->