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    sitelog navigation structure General Site Log Meteorological Data LAGEOS Performance Satellite Data Info

Chania: Site Log

Instructions and Update Site Log

You can use the hyperlinks to quickly get to the section of interest or you can scroll down to read them all.

Section: 0. Form
Section: 1. Identification of the Ranging System Reference Point (SRP)
Section: 2. Site Location Information
Section: 3. General System Information
Section: 4. Telescope Information
Section: 5. Laser System Information
Section: 6. Receiver System
Section: 7. Tracking Capabilities
Section: 8. Calibration
Section: 9. Time and Frequency Standards
Section: 10. Preprocessing Information
Section: 11. Aircraft Detection
Section: 12. Meteorological Instrumentation
Section: 13. Local Ties, Eccentricities, and Collocation Information
Section: 14. Local Events Possibly Affecting Computed Position
Section: 15. On-Site, Point of Contact Agency Information
Section: 16. Responsible Agency (if different from 15.)
Section: 17. More Information

 
       ILRS Site and System Information Form
       International Laser Ranging Service
 
  0.   Form
 
       Prepared by (Full Name)    : Francis Pierron
       Preparer E-mail            : francis.pierron@obs-azur.fr 
       Date Prepared              : 2003-04-01
       Report Type                : Update
       Format Version             : 1.0
 
 
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  1.   Identification of the Ranging System Reference Point (SRP)
 
       Site Name                  : Chania, Crete
       IERS DOMES Number          : 12617M002
       CDP Pad ID                 : 7830
       Subnetwork                 : EUROLAS
       Description                : MONUMENT
       Monument Description       : Marker
       Monument Inscription       : N.A.
       Mark Description           : Chiselled cross
       Date Installed             : 2002-12-15
       Date Removed               : 
       Geologic Characteristic    : BEDROCK
       Additional Information     : (multiple lines)
 
 
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  2.   Site Location Information
 
       City or Town               : Chania
       State or Province          : Crete
       Country                    : Greece
       Tectonic Plate             : Eurasian
       Approximate Position
         X coordinate          [m]:  4744548.397
         Y coordinate          [m]:  2119408.097
         Z coordinate          [m]:  3686248.403   
         Latitude            [deg]: 35.5331 N
         Longitude           [deg]: 24.0705 E
         Elevation             [m]: 157
       Additional Information     : positions are approximate
 
 
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  3.   General System Information
 
  3.01 System Name                : FTLRS
       4-Character Code           : CHAF
       CDP System Number          : 69
       CDP Occupation Number      : 01
       Eccentricity to SRP 
         North                 [m]: 0.0000 +- 0.001
         East                  [m]: 0.0000 +- 0.001
         Up                    [m]: 1.8184 +- 0.001
         Date Measured            : 2003-03-30
       Date Installed             : 2003-03-30
       Date Removed               : 
       Additional Information     : 
                                    
                                   
 
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  4.   Telescope Information
 
  4.01 Receiving Telescope Type   : CASSEGRAIN 
         Aperture              [m]: .13
         Mount                    : AZ-EL 
       Xmitting Telescope Type    : CASSEGRAIN
         Aperture              [m]: 0.13
       Tracking Camera Type       : CCD 
         Model                    : SV0500
         Manufacturer             : Digital vison technologie
         Field of View       [deg]: .066
         Minimum Magnitude   [mag]: 3
       Transmit/Receive Path      : COMMON
       Transmit/Receive Switch    : POLARIZER
       Max Slew Rate Az    [deg/s]:  30
       Max Slew Rate El    [deg/s]:  10
       Max Used Tracking Rate Az  :  20
       Max Used Tracking Rate El  :  10
       Telescope Shelter          :  TENT
       Daylight Filter Type       :  Interferential filter oven controled
       Dayl. Filt. Bandwidth  [nm]:  1.00
       Adjustable Attenuation     :  RECEIVE
       Transmit Efficiency        :  0.45
       Receive Efficiency         :  0.20
       Date Installed             :  1996-09-01
       Date Removed               : 
       Additional Information     : (multiple lines)
 
 
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  5.   Laser System Information
 
  5.01 Laser Type                 : ND:YAG 
       Number of Amplifiers       : 1 
       Primary Wavelength     [nm]: 1064
       Primary Maximum Energy [mJ]: 
       Secondary Wavelength   [nm]: 532
       Secondary Max. Energy  [mJ]: 20
       Xmit Energy Adjustable     : YES 
       Pulse Width (FWHM)     [ps]: 35
       Max. Repetition Rate   [Hz]: 10
       Fullw. Beam Divergence  ["]: 30
       Final Beam Diameter     [m]: .10
       Eyesafe                    : NO
       Eyesafe Standard           : ANSI 136.1 
       Date Installed             : 2001-07-01
       Date Removed               : 
       Additional Information     : On calibration, attenuated via 
                                    amplifier delay and neutral density
                                    Amplifier is double pass. 
 
  5.02 Laser Type                 : ND:YAG 
       Number of Amplifiers       : 1 
       Primary Wavelength     [nm]: 1064
       Primary Maximum Energy [mJ]: 60
       Secondary Wavelength   [nm]: 
       Secondary Max. Energy  [mJ]: 
       Xmit Energy Adjustable     : NO 
       Pulse Width (FWHM)     [ps]: 100
       Max. Repetition Rate   [Hz]: 10
       Fullw. Beam Divergence  ["]: 60
       Final Beam Diameter     [m]: .10
       Eyesafe                    : NO
       Eyesafe Standard           : ANSI 136.1 
       Date Installed             : 1995-11-01
       Date Removed               : 1999-01-01
       Additional Information     : On calibration, attenuated via 
                                    amplifier delay. 
                                    Amplifier is double pass. 
                                    Xmit energy only adjusted for 
                                    calibration.
 
 
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  6.   Receiver System
 
  6.01.01 Primary Chain
          Wavelength          [nm]: 532
          Detector Type           : CSPAD
            Manufacturer          : PESO Consulting
            Model                 : 
            Quantum Efficiency [%]: 5
            Nominal Gain          :
            Rise Time         [ps]: <2400
            Jitter (Single PE)[ps]: <20
            Field of View      ["]: 50
            Date Installed        : 2001-07-01
            Date Removed          : 
          Signal Processing       : Time Walk Compensation
            Manufacturer          : Graz
            Model                 : 
            Date Installed        : 2001-07-01
            Date Removed          : 
            Amplitude Measurement : NO
            Return-rate Controlled: YES
            Mode of Operation     : Few Photons
          Time of Flight Observ.  : INTERVAL 
            Manufacturer          : Stanford
            Model                 : 620
            Resolution        [ps]: 4
            Precision         [ps]: 30
            Date Installed        : 2001-07-01
            Date Removed          : (yyyy-mm-dd)
          Additional Information  : (multiple lines) 
 
  6.01.02 Primary Chain
          Wavelength          [nm]: 532
          Detector Type           : PMT
            Manufacturer          : EG&G
            Model                 : 902S
            Quantum Efficiency [%]: 5
            Nominal Gain          :
            Rise Time         [ps]: <2400
            Jitter (Single PE)[ps]: <100
            Field of View      ["]: 100
            Date Installed        : 1995-09-01
            Date Removed          : 1999-09-01
          Signal Processing       : Leading edge
            Manufacturer          : Grasse
            Model                 : 
            Date Installed        : 1995-09-01
            Date Removed          : 1999-09-01
            Amplitude Measurement : NO
            Return-rate Controlled: YES
            Mode of Operation     : Few Photons
          Time of Flight Observ.  : INTERVAL
            Manufacturer          : Stanford
            Model                 : 620
            Resolution        [ps]: 4
            Precision         [ps]: 30
            Date Installed        : 1995-09-01
            Date Removed          : (yyyy-mm-dd)
          Additional Information  : (multiple lines)
 
 
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  7.   Tracking Capabilities
 
   7.01 Satellites
         Very Low Alt (<400 km)   : YES 
         Low Altitude (400-2000)  : YES
         Lageos                   : YES 
         GLONASS                  : NO
         Etalon                   : NO
         GPS                      : NO
         Moon                     : NO
       Avge Pass Switch Time   [s]: 60
       Average values for Lageos
         Single Shot RMS      [mm]: 17
         # of Obs per NP          : 50
         Use of Semi-trains       : YES
         # of Semi-train Tracks   : 3-4
       Range Gate Width       [ns]: 200-500000
       Beam Pointing Accuracy  ["]: 15
       Angle Encoder Resolution["]: 0.5
       Min. Tracking Elev.   [deg]: 10
       Operation
         Months per Year          :  4
         Days per Week            :  7
         Hours per Day            :  14 
         Staff per Shift          :  1
         System Shared With       :  
         Time Allocated to SLR [%]: 100
         Remotely Controllable    : NO
       Date First Applicable      : 2001-07-01
       Date Last Applicable       : (yyyy-mm-dd)
       Additional Information     : Tracking Lageos with clear sky only
 
 7.02 Satellites
         Very Low Alt (<400 km)   : YES 
         Low Altitude (400-2000)  : YES
         Lageos                   : NO 
         GLONASS                  : NO
         Etalon                   : NO
         GPS                      : NO
         Moon                     : NO
       Avge Pass Switch Time   [s]: 60
       Average values for Lageos
         Single Shot RMS      [mm]: N.A.
         # of Obs per NP          : N.A.
         Use of Semi-trains       : YES
         # of Semi-train Tracks   : 3-4
       Range Gate Width       [ns]: 200-50000
       Beam Pointing Accuracy  ["]: 15
       Angle Encoder Resolution["]: 0.5
       Min. Tracking Elev.   [deg]: 10
       Operation
         Months per Year          :  4
         Days per Week            :  7
         Hours per Day            :  18 
         Staff per Shift          :  1
         System Shared With       :  
         Time Allocated to SLR [%]: 100
         Remotely Controllable    : NO
       Date First Applicable      : 1995-09-01
       Date Last Applicable       : (yyyy-mm-dd)
       Additional Information     : (multiple lines)
 
 
 
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  8.   Calibration
 
  8.01 Calibration Type           : POST
       Target Location            : EXTERNAL
       Target Type                : CORNER CUBE
       Target Structure           : Ground target on building
       Target Distance         [m]: 146.021 
         Date Measured            : 2003-03-30
         Accuracy (mm)        [mm]: < 1.5
         Verification             :
       Return-rate Controlled     : YES
       Mode of Operation          : FEW PHOTONS 
       Average Cal Interval  [min]: 30
       Single Shot RMS        [mm]: < 6 +/- 1
       Edit Criterion 1st Chain   : ITERATIVE 2.5 SIGMA
       Edit Criterion 2nd Chain   : N.A.
       Application of Cal Data    : AVERAGE
       Date Installed             : 2003-03-01
       Date Removed               : 
       Additional Information     : (multiple lines)
 
 
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  9.   Time and Frequency Standards
 
  9.01.01 Frequency Standard Type : Rubidium disciplined by GPS
          Model                   :  
          Manufacturer            : Datum 
          Short Term Stab.  [e-12]: 50 
          Long Term Stab.   [e-12]: 700 
          Time Reference          : GPS
          Synchronization         : GPS
          Epoch Accuracy      [ns]: <100
          Date Installed          : 2001-07-01
          Date Removed            : 
          Additional Information  : 
 
  9.01.01 Frequency Standard Type : Rubidium disciplined by GPS
          Model                   : 8810 
          Manufacturer            : Trak System 
          Short Term Stab.  [e-12]: 50 
          Long Term Stab.   [e-12]: 700
          Time Reference          : GPS
          Synchronization         : GPS
          Epoch Accuracy      [ns]: <100
          Date Installed          : 1995-09-01
          Date Removed            : 1999-01-01
          Additional Information  : 
 
 
  9.02.01 GPS Timing Rcvr Model   : 9390-6000
          Manufacturer            : Trimble
          Date Installed          : 1995-09-01
          Date Removed            : 1999-01-01
          Additional Information  : 
 
 
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 10.   Preprocessing Information
 
 10.01 On-site NP Generation      : YES
       Data Screening             : IRV+POLYNOMIAL
       Edit Criterion 1st Chain   : MANUAL+ITERATIVE 2.4 SIGMA
       Edit Criterion 2nd Chain   : N.A.
       Upload interval            : AFTER EACH PASS
       Date First Applicable      : 1995-05-09
       Date Last Applicable       : (yyyy-mm-dd)
       Additional Information     : (multiple lines)
 
 
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 11.   Aircraft Detection
 
 11.01 Detection Type             : MOUNT OBSERVER
       Date Installed             : 1995-09-01
       Date Removed               : (yyyy-mm-dd)
       Additional Information     : Observer uses tracking CCD Camera
                                    at night
 
 
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 12.   Meteorological Instrumentation
 
 12.01.01 Pressure Sensor Model   : HMP243
          Manufacturer            : Vaisala
          Recording Interval      : PER PASS
          Accuracy          [mbar]: 0.2
          Height Diff to SRP   [m]: <0.5
          Date Installed          : 2001-07-01
          Calibration Interval    : YEARLY 
          Date Removed            : 
          Additional Information  : 
 
 12.01.02 Pressure Sensor Model   : AK 700-1100
          Manufacturer            : Effa
          Recording Interval      : PER PASS
          Accuracy          [mbar]: 0.5
          Height Diff to SRP   [m]: <0.5
          Date Installed          : 1995-09-01
          Calibration Interval    : YEARLY 
          Date Removed            : 2001-06-01
          Additional Information  : 
 
 12.02.01 Temp Sensor Model       : HMP243
          Manufacturer            : Vaisala
          Recording Interval      : PER PASS
          Accuracy         [deg C]: 0.2
          Date Installed          : 2001-07-01 
          Calibration Interval    : YEARLY
          Date Removed            : 
          Additional Information  : 
 
 12.03.01 Humidity Sensor Model   : HMP243
          Manufacturer            : Vaisala
          Recording Interval      : PER PASS
          Accuracy       [% rel h]: 5
          Date Installed          : 2001-07-01 
          Calibration Interval    : YEARLY
          Date Removed            : 
          Additional Information  : 
 
 
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 13.   Local Ties, Eccentricities, and Collocation Information
 
 13.01 Collocated Permanent Geodetic Systems
 
       GPS                        : EUREF
         Date Installed           :  
         Date Removed             : 
         Additional Information   : 
       GLONASS                    : NO
         Date Installed           : (yyyy-mm-dd)
         Date Removed             : (yyyy-mm-dd)
         Additional Information   : (multiple lines)
       DORIS                      : Mobile
         Date Installed           : 1997-01-01
         Date Removed             : 1997-01-01
         Additional Information   : (multiple lines)
       PRARE                      : NO
         Date Installed           : (yyyy-mm-dd)
         Date Removed             : (yyyy-mm-dd)
         Additional Information   : (multiple lines)
       VLBI                       : NO
         Date Installed           : (yyyy-mm-dd)
         Date Removed             : (yyyy-mm-dd)
         Additional Information   : (multiple lines)
       Gravimeter                 : NO
         Date Installed           : 
         Date Removed             :
         Additional Information   :  
 
 13.02.01 Local Ties from the SRP to Other Monuments or Systems on Site
   
          Monument Name           : TUC1
          Instrumentation Type    : GPS
          Instrumentation Status  : PERMANENT
          DOMES Number            : 12617S001
          CDP Number              : 
          Differential Components (ITRS)
            dx                 [m]: 
            dy                 [m]: 
            dz                 [m]: 
          Date Measured           : 
          Determined by           : 
          Date Installed          : 
          Date Removed            : 
          Additional Information  : 
 
 
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 14.   Local Events Possibly Affecting Computed Position
 
 14.01 Date                       : 
       Event                      : 
       Additional Information     : 
 
 
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 15.   On-Site, Point of Contact Agency Information
 
       Agency                     : Observatoire de la côte d'Azur, CNES/GRGS
       Mailing Address            : Avenue N. Copernic, 06130 Grasse - France
       Primary Contact
         Contact Name             : Francis Pierron
         Telephone (primary)      : 33 493405420 
         Telephone (secondary)    : 33 493405454 
         Fax                      : 33 493092614 
         E-mail                   : francis.pierron@obs-azur.fr
       Secondary Contact
         Contact Name             : Joelle Nicolas 
         Telephone (primary)      : 33 493405381
         Telephone (secondary)    : 33 493405553 
         Fax                      : 33 493405333 
         E-mail                   : joelle.nicolas@obs-azur.fr
       Additional Information     : Third contact- Pierre Exertier 
                                    phone 33 493405386
                                    phone 493405353 
                                    fax 33 493405333 
                                    email pierre.exertier@obs-azur.fr
 
  
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 16.   Responsible Agency (if different from 15.)
 
       Agency                     : (multiple lines)
       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)
 
 
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 17.   More Information
 
       URL for More Information   : http://www.obs-azur.fr
       Hardcopy on File
         Site Map                 : NO
         Site Diagram             : NO
         Horizon Mask             : NO
         Monument Description     : NO
         Site Pictures            : YES
       Additional Information     : (multiple lines)
 
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