ALX2 Site Information Form (site log) International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Cecile SHAALAN Date Prepared : 2012-04-25 Report Type : NEW If Update: Previous Site Log : (ssss_ccyymmdd.log) Modified/Added Sections : (n.n,n.n,...) 1. Site Identification of the GNSS Monument Site Name : Alexandria Four Character ID : ALX2 Monument Inscription : none IERS DOMES Number : 30102M001 CDP Number : (A4) Monument Description : concrete pillar Height of the Monument : 1.70 Monument Foundation : roof of building Foundation Depth : (m) Marker Description : Center of lower steel plate of the centring device attached to a concrete pillar Date Installed : 2008-03-03T00:00Z Geologic Characteristic : nile deposits* Bedrock Type : SEDIMENTARY Bedrock Condition : FRESH Fracture Spacing : unknown Fault zones nearby : YES Distance/activity : c. 200km East,prolongation of the African Rift c. 400km North, Aegean subduction zone Additional Information : The antenna is mounted upon a concrete pillar on the eighth floor terrace of the Centre d'Etudes Alexandrines. nile deposits* : mainly calcareous oolithic sands with localy indurated calcarenites (alexandria formation). 2. Site Location Information City or Town : Alexandria State or Province : Alexandria Country : Egypt Tectonic Plate : Africa Approximate Position (ITRF) X coordinate (m) : 4733388.840 Y coordinate (m) : 2723027.871 Z coordinate (m) : 3284632.425 Latitude (N is +) : +311149.44 Longitude (E is +) : +0295439.574 Elevation (m,ellips.) : 00057.991 Additional Information : 3. GNSS Receiver Information 3.1 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLONASS Serial Number : 355360 Firmware Version : 5.62/3.019 Elevation Cutoff Setting : 5 Date Installed : 2008-03-03T00:00Z 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/GLONASS/GPS+GLONASS) 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 : LEIAT504GG LEIS Serial Number : 200486 Antenna Reference Point : ARP 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 : 0 Antenna Radome Type : LEIS Radome Serial Number : Antenna Cable Type : LEICA Antenna Cable Length : 30 Date Installed : 2008-03-03T00:00Z Date Removed : 2008-06-16T00:00Z 4.2 Antenna Type :LEIAT504GG NONE Serial Number : 200486 Antenna Reference Point : ARP 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 : 0 Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : LEICA Antenna Cable Length : 30 Date Installed : 2008-06-16T00:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : height of antenna 0.164 m 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 : (if external) 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 7.1 Instrumentation Type : none Status : (PERMANENT/MOBILE) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 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 : None 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) 8.1.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 : None 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) 8.2.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 : None 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) 8.3.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) 8.4.1 Water Vapor Radiometer : None 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 : (multiple lines) 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.1 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) 9.1.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) 9.2.1 Multipath Sources : There are TV satelite dishes in the neighbourhood of the station, but without causing any noticeable effects to the multi-path. 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) 9.3.1 Signal Obstructions : There is a building close by to the north. 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 10.1 Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : Centre d'Etudes Alexandrines - UMS 1812 Centre National de la Recherche Scientifique Preferred Abbreviation : CEA-CNRS Mailing Address : 50, Soliman Yousri Street - 21131 Alexandria EGYPT Primary Contact Contact Name : Cecile SHAALAN Telephone (primary) : 00.203.390.69.62 Telephone (secondary) : 00.203.391.13.70 Fax : 00.203.484.62.45 E-mail : station-gps@cea.com.eg Secondary Contact Contact Name : Jean-Yves EMPEREUR Telephone (primary) : 00.20.122.229.60.62 Telephone (secondary) : 00.203.484.62.45 Fax : 00.203.484.62.45 E-mail : jye@cea.com.eg Additional Information : Founded in 1990 by Jean-Yves Empereur, director of research with the French Centre National de la Recherche Scientifique, the Centre d'Etudes Alexandrines (CEA) has, as a mission, the study of the rich history of Alexandria whether through existing vestiges, land or underwater excavations, archives, ancient maps and texts, or travellers accounts. 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 : http://www.station-gpsspiderweb.cea.com.eg Secondary Data Center : URL for More Information : http://www.station-gps.cea.com.eg/siteGPS/Frcais/cadre_francais.htm Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : (multiple lines) Antenna Graphics with Dimensions LEIAT504GG +-------+ <-- 0.1393 / + \ <-- L2 | + | <-- L1 +-----------------+-------------+------------------+ <-- 0.1012 TCR | | | | | | | | +-+--------------------------------------------------+-+ +-------------------+-------------+--------------------+ <-- 0.0345 BCR | | | | +------x------+ <-- 0.0 BPA=ARP | | | | | | | | +--+---------+--+ +-+-----------+-+ || || || || || || || || || || || || || || +==========x=========+ <-- -0.164 Marker | | | Concrete | | | | Pillar | | | | | <-- 0.3794 --> ARP: Antenna Reference Point BCR : Bottom of Choke ring L1 : L1 Phase Center BPA : Bottom of pre-amplifier L2 : L2 Phase Center All dimensions are in meters.