ILRS Site and System Information Form
      International Laser Ranging Service

 0.   Form

      Prepared by (Full Name)    : Stefan Riepl
      Preparer E-mail            : riepl@wettzell.ifag.de
      Date Prepared              : 2002-05-09
      Report Type                : UPDATE
      Site Log Format Version    : 2.0
      Site Log Revision          : 


 1.   Identification of the Ranging System Reference Point (SRP)

      Site Name                  : Wettzell
      IERS DOMES Number          : 14201M200
      CDP Pad ID                 : 7594
      Subnetwork                 : EUROLAS
      Description                : MONUMENT
      Monument Description       : PLATE
      Monument Inscription       : NONE
      Mark Description           : NAIL
      Date Installed             : 1997-01-01
      Date Removed               : 
      Geologic Characteristic    : BEDROCK/CLAY
      Additional Information     : System will be shipped to Concepcio/Chile
                                 : by the end of 2001


 2.   Site Location Information

      City or Town               : Koetzting
      State or Province          : Bavaria
      Country                    : Germany
      Tectonic Plate             : Eurasian
      Local Time (UTC +/- hours) : 
      Approximate Position
        X coordinate          [m]: 4075595.9
        Y coordinate          [m]: 931733.1
        Z coordinate          [m]: 4801568.4
        Latitude            [deg]: 49.1443 N
        Longitude           [deg]: 12.8773 E
        Elevation             [m]: 658.417
      Survey Method              : 
      Date Measured              : 
      Additional Information     : 


 3.   General System Information

 3.01 System Name                : TIGO
      4-Character Code           : WETT
      CDP System Number          : 79
      CDP Occupation Number      : 01
      Eccentricity to SRP (if Not Identical With SRP)
        North                 [m]: -0.100 +- 0.001
        East                  [m]: -0.055 +- 0.001
        Up                    [m]: 1.467 +- 0.001
        Date Measured            : 1998-01-01
      Date Installed             : 1998-01-01
      Date Removed               : 
      Additional Information     : system eccentricities in original
                                 : site log wett_20001004.log were wrong.
                                 : (i.e. from the optical axes to the
                                 :  marker versus the marker to the
                                 :  optical axes)


 4.   Telescope Information

 4.01 Receiving Telescope Type   : folded galilean
        Aperture              [m]: 0.5
        Mount                    : AZ-EL
      Date Installed             : 
      Date Removed               : 
      Xmitting Telescope Type    : folded galilean
        Aperture              [m]: 0.1
      Date Installed             : 
      Date Removed               : 
      Tracking Camera Type       : CCD/TV
        Model                    : PROXICAM
        Manufacturer             : PROXICAM
        Field of View       [deg]: 0.016
        Minimum Magnitude   [mag]: 8
      Date Installed             : 
      Date Removed               : 
      Transmit/Receive Path      : COMMON COUDE
      Transmit/Receive Switch    : N.A.
      Max Slew Rate Az    [deg/s]: 10
      Max Slew Rate El    [deg/s]: 10
      Max Used Tracking Rate Az  : 10
      Max Used Tracking Rate El  : 10
      Telescope Shelter          : DOME
      Daylight Filter Type       : AIR SPACED ETALON
      Dayl. Filt. Bandwidth  [nm]: 0.1
      Adjustable Attenuation     : TRANSMIT
      Adjustable Field of View   : 
      Transmit Efficiency        : 0.95
      Receive Efficiency         : 0.9
      Date Installed             : 1998-01-01
      Date Removed               : 
      Additional Information     : Transmit/Receive Switch: `SHARED APERTURE`


 5.   Laser System Information

 5.01 Laser Type                 : TI:SAP
      Model                      : 
      Manufacturer               : 
      Number of Amplifiers       : 3
      Primary Wavelength     [nm]: 847
      Primary Maximum Energy [mJ]: 60
      Secondary Wavelength   [nm]: 423.5
      Secondary Max. Energy  [mJ]: 30
      Xmit Energy Adjustable     : YES
        Additional Information   : 
      Pulse Width (FWHM)     [ps]: 80
      Max. Repetition Rate   [Hz]: 10
      Fullw. Beam Divergence  ["]: 2 - 60
        Theoretical Beam Div     : 
        Measured Beam Div        : 
          Method Used            : 
          Additional Information : 
      Final Beam Diameter     [m]: 0.1
      Eyesafe                    : NO
      Eyesafe Standard           : DIN VDE 0837 (IEC 825)
      Polarization on Exit       : 
      Laser Fire Control         : 
      Laser Energy Monitor       : 
      Start Diode Type           : 
        Manufactorer             : 
        Model                    : 
        Quantum Efficiency    [%]: 
        Rise/Fall Time       [ps]: 
        Date Installed           : 
        Date Removed             : 
        Signal Processing        : 
          Manufacturer           : 
          Model                  : 
          Date Installed         : 
          Date Removed           : 
          Additional Information : 
      Date Installed             : 1998-01-01
      Date Removed               : 
      Additional Information     : 1 regenerative/ 2 linear multipath
                                 : amplifiers
                                 : Start Detector Specifications
                                 : Wavelength        : 847 nm
                                 : Type              : APD linear mode
                                 : Manufacturer      : K.H.Haufe
                                 : Rise Time         : < 100 ps
                                 : Jitter            : 20 ps
                                 : Expose mode       : focused
                                 : Signal Processing : CFD
                                 : Date Installed    : 2001-01-31
                                 : 
                                 : Pulse Width: 80/56


 6.   Receiver System

 6.01.01 Primary Chain
         Wavelength          [nm]: 423.5
         Detector Type           : CSPAD
           Manufacturer          : PESO Consulting
           Model                 : 1
           Quantum Efficiency [%]: 10
           Nominal Gain          : 1e9
           Rise Time         [ps]: 100
           Jitter (Single PE)[ps]: 80
           Field of View Diam ["]: 60
           Date Installed        : 1998-01-01
           Date Removed          : 
         Amplifier Type          : 
           Manufacturer          : 
           Model                 : 
           Gain                  : 
           Bandwidth             : 
           Date Installed        : 
           Date Removed          : 
           Additional Information: 
         Signal Processing       : Time Walk Compensated
           Manufacturer          : Graz
           Model                 : V01
           Date Installed        : 1998-01-01
           Date Removed          : 
           Amplitude Measurement : YES
           Return-Rate Controlled: YES
           Mode of Operation     : SINGLE/FEW PHOTON
           Additional Information: 
         Time of Flight Observ.  : EVENT
           Manufacturer          : PESO Consulting
           Model                 : PET 4
           Resolution        [ps]: 1.22
           Precision         [ps]: 7
           Date Installed        : 2000-07-01
           Date Removed          : 
         Additional Information  : Rise Time: < 100

 6.01.02 Primary Chain
         Wavelength          [nm]: 423.5
         Detector Type           : CSPAD
           Manufacturer          : PESO Consulting
           Model                 : 1
           Quantum Efficiency [%]: 10
           Nominal Gain          : 1e9
           Rise Time         [ps]: 100
           Jitter (Single PE)[ps]: 60
           Field of View Diam ["]: 10
           Date Installed        : 1998-01-01
           Date Removed          : 
         Amplifier Type          : 
           Manufacturer          : 
           Model                 : 
           Gain                  : 
           Bandwidth             : 
           Date Installed        : 
           Date Removed          : 
           Additional Information: 
         Signal Processing       : Time Walk Compensated
           Manufacturer          : Graz
           Model                 : V01
           Date Installed        : 1998-01-01
           Date Removed          : 
           Amplitude Measurement : YES
           Return-Rate Controlled: YES
           Mode of Operation     : SINGLE/FEW PHOTON
           Additional Information: 
         Time of Flight Observ.  : INTERVAL
           Manufacturer          : Stanford
           Model                 : 620
           Resolution        [ps]: 4
           Precision         [ps]: 30
           Date Installed        : 1998-01-01
           Date Removed          : 2000-07-01
         Additional Information  : Rise Time < 100

 6.01.03 Primary Chain
         Wavelength          [nm]: 423.5
         Detector Type           : PMT
           Manufacturer          : Hamamatsu
           Model                 : H7421-50
           Quantum Efficiency [%]: 15
           Nominal Gain          : 1e9
           Rise Time         [ps]: 1000
           Jitter (Single PE)[ps]: 60
           Field of View Diam ["]: 60
           Date Installed        : 2001-01-31
           Date Removed          : 
         Amplifier Type          : 
           Manufacturer          : 
           Model                 : 
           Gain                  : 
           Bandwidth             : 
           Date Installed        : 
           Date Removed          : 
           Additional Information: 
         Signal Processing       : CFD
           Manufacturer          : ORTEC
           Model                 : QUAD CFD
           Date Installed        : 2001-01-31
           Date Removed          : 
           Amplitude Measurement : NO
           Return-Rate Controlled: YES
           Mode of Operation     : SINGLE PHOTON
           Additional Information: 
         Time of Flight Observ.  : EVENT
           Manufacturer          : PESO Consulting
           Model                 : PET 4
           Resolution        [ps]: 1.22
           Precision         [ps]: 3
           Date Installed        : 2000-07-01
           Date Removed          : 
         Additional Information  : Rise Time: < 1000
                                 : Precision: <3

 6.01.04 Primary Chain
         Wavelength          [nm]: 423.5
         Detector Type           : APD
           Manufacturer          : Lutz Beyer
           Model                 : SP114
           Quantum Efficiency [%]: 50
           Nominal Gain          : 1e9
           Rise Time         [ps]: 100
           Jitter (Single PE)[ps]: 60
           Field of View Diam ["]: 60
           Date Installed        : 2001-01-31
           Date Removed          : 
         Amplifier Type          : 
           Manufacturer          : 
           Model                 : 
           Gain                  : 
           Bandwidth             : 
           Date Installed        : 
           Date Removed          : 
           Additional Information: 
         Signal Processing       : None
           Manufacturer          : 
           Model                 : 
           Date Installed        : 
           Date Removed          : 
           Amplitude Measurement : NO
           Return-Rate Controlled: YES
           Mode of Operation     : SINGLE PHOTON
           Additional Information: 
         Time of Flight Observ.  : EVENT
           Manufacturer          : PESO Consulting
           Model                 : PET 4
           Resolution        [ps]: 1.22
           Precision         [ps]: 3
           Date Installed        : 2000-07-01
           Date Removed          : 
         Additional Information  : Rise Time: < 100
                                 : Precision: <3

 6.02.01 Secondary Chain
         Wavelength          [nm]: 847.0
         Detector Type           : CSPAD
           Manufacturer          : PESO Consulting
           Model                 : 1
           Quantum Efficiency [%]: 10
           Nominal Gain          : 1e9
           Rise Time         [ps]: 100
           Jitter (Single PE)[ps]: 60
           Field of View Diam ["]: 60
           Date Installed        : 2000-07-01
           Date Removed          : 
         Amplifier Type          : 
           Manufacturer          : 
           Model                 : 
           Gain                  : 
           Bandwidth             : 
           Date Installed        : 
           Date Removed          : 
           Additional Information: 
         Signal Processing       : Time Walk Compensated
           Manufacturer          : Graz
           Model                 : V01
           Date Installed        : 2000-07-01
           Date Removed          : 
           Amplitude Measurement : YES
           Return-Rate Controlled: YES
           Mode of Operation     : SINGLE/FEW PHOTON
           Additional Information: 
         Time of Flight Observ.  : EVENT
           Manufacturer          : PESO Consulting
           Model                 : PET 4
           Resolution        [ps]: 1.22
           Precision         [ps]: 3
           Date Installed        : 2000-07-01
           Date Removed          : 
         Additional Information  : Precision: <3

 6.03.01 Tertiary Chain
         Wavelength          [nm]: 
         Detector Type           : 
           Manufacturer          : 
           Model                 : 
           Quantum Efficiency [%]: 
           Nominal Gain          : 
           Rise Time         [ps]: 
           Jitter (Single PE)[ps]: 
           Field of View Diam ["]: 
           Date Installed        : 
           Date Removed          : 
         Amplifier Type          : 
           Manufacturer          : 
           Model                 : 
           Gain                  : 
           Bandwidth             : 
           Date Installed        : 
           Date Removed          : 
           Additional Information: 
         Signal Processing       : 
           Manufacturer          : 
           Model                 : 
           Date Installed        : 
           Date Removed          : 
           Amplitude Measurement : 
           Return-Rate Controlled: 
           Mode of Operation     : 
           Additional Information: 
         Time of Flight Observ.  : 
           Manufacturer          : 
           Model                 : 
           Resolution        [ps]: 
           Precision         [ps]: 
           Date Installed        : 
           Date Removed          : 
         Additional Information  : 


 7.   Tracking Capabilities

 7.01 Satellites
        Very Low Alt (<400 km)   : YES
        Low Altitude (400-2000)  : YES
        LAGEOS/LARES             : YES
        GLONASS                  : YES
        Etalon                   : YES
        GNSS                     : YES
        Geosynchronous           : 
        Moon                     : NO
      Ave. Pass Switch Time   [s]: 60
      Average values for LAGEOS
        Single Shot RMS      [mm]: 24
        # of Obs per NP          : 20
        Use of Semi-trains       : NO
        # of Semi-train Tracks   : N.A.
      Range Gate Width       [ns]: 200
      Beam Pointing Accuracy  ["]: 5
      Angle Encoder Resolution["]: 0.5
      Min. Tracking Elev.   [deg]: 20
      Laser Polarization @emitter: 
      Operation
        Months per Year          : 0
        Days per Week            : 0
        Hours per Day            : 0
        Staff per Shift          : N.A.
        System Shared With       : NOTHING
        Time Allocated to SLR [%]: 100
        Remotely Controllable    : NO
      Tracking Restrictions
        Go/No-go flag            : 
          Satellite Verification : 
          Date Verified          : 
        Maximum elevation        : 
          Satellite Verification : 
          Date Verified          : 
        Pass segments            : 
          Satellite Verification : 
          Date Verified          : 
        Schedule segments        : 
          Satellite Verification : 
          Date Verified          : 
        Maximum laser power limit: 
          Satellite Verification : 
        Date Verified            : 
      Date First Applicable      : 
      Date Last Applicable       : 
      Additional Information     : 


 8.   Calibration

 8.01 Calibration Type           : PRE+POST
      Target Location            : INTERNAL
      Target Type                : FLAT SURFACE
      Target Structure           : FLIP MIRROR INSIDE TELESCOPE
      Number of Targets          : 
      Target Distance(s)      [m]: -2.351
        Date Measured            : 1998-01-01
        Accuracy             [mm]: 1
        Verification             : 
      Return-Rate Controlled     : YES
      Eye-Safe Method            : 
        Additional Information   : 
      Mode of Operation          : SINGLE PHOTON
      Calibration performed      : 45
      Single Shot RMS        [mm]: 15
      Edit Criterion 1st Chain   : ITERATIVE 2.5 SIGMA
      Edit Criterion 2nd Chain   : ITERATIVE 2.5 SIGMA
      Application of Cal Data    : LINEAR FIT
      Date Installed             : 1998-01-01
      Date Removed               : 
      Additional Information     : 


 9.   Time and Frequency Standards

 9.01.01 Frequency Standard Type : Cesium
         Model                   : 5071A
         Manufacturer            : HP
         Short Term Stab.  [e-12]: 10
         Long Term Stab.   [e-12]: 0.05
         Time Reference          : GPS
         Synchronization         : GPS
         Epoch Accuracy      [ns]: 10
         Date Installed          : 1997-01-01
         Date Removed            : 
         Additional Information  : 

 9.02.01 GNSS Timing Rcvr Model  : 9390
         Manufacturer            : Datum
         Date Installed          : 1997-01-01
         Date Removed            : 
         Additional Information  : 

 9.03.01 One-way System Calibration
         Date performed          : 
         Direction Calibrated    : 
         Additional Information  : 


10.   Preprocessing Information

10.01 On-site NP Generation      : YES
      Data Screening             : AUTOMATIC (TIMEBIAS-MODEL) + SOLVE
      Return-Rate Rejection      : 
      Edit Criterion 1st Chain   : 2.5 SIGMA
      Edit Criterion 2nd Chain   : 2.5 SIGMA
      Upload interval            : AFTER EACH PASS
      Date First Applicable      : 1997-01-01 HH:MM UT
      Date Last Applicable       : 
      Additional Information     : 


11.   Aircraft Detection

11.01 Detection Type             : RADAR
      Manufacturer/Provider      : 
      Automatic Laser Shutoff    : 
      Alarms Recorded            : 
      Hazard Distance        [km]: 
      Date Installed             : 1997-01-01
      Date Removed               : 
      Additional Information     : 


12.   Meteorological Instrumentation

12.01.01 Pressure Sensor Model   : Digiquartz 740-16B
         Manufacturer            : Paroscientific
         Recording Interval      : EVERY 1 MINUTE
         Accuracy          [mbar]: 0.1
         Height Diff to SRP   [m]: 0
         Distance from SRP    [m]: 
         Date Installed          : 1997-01-01 HH:MM UT
         Calibration Interval    : YEARLY
         Date Removed            : 
         Additional Information  : 

12.02.01 Temp Sensor Model       : 809
         Manufacturer            : Lambrecht
         Recording Interval      : EVERY 1 MINUTE
         Accuracy         [deg C]: 0.3
         Date Installed          : 1997-01-01 HH:MM UT
         Calibration Interval    : MONTHLY
         Date Removed            : 
         Additional Information  : 

12.03.01 Humidity Sensor Model   : 809
         Manufacturer            : Lambrecht
         Recording Interval      : EVERY 1 MINUTE
         Accuracy       [% rel h]: 2.5
         Date Installed          : 1997-01-01 HH:MM UT
         Calibration Interval    : MONTHLY
         Date Removed            : 
         Additional Information  : 


13.   Local Ties, Eccentricities, and Collocation Information

13.01 Collocated Permanent Geodetic Systems

13.01.01.01 GNSS                 : IGS+EUREF
            Date Installed       : 1995-02-09
            Date Removed         : 
            Additional Info      : another IGS site
                                 : installed 1997-02-06
13.01.01.02 GNSS                 : IGLOS
            Date Installed       : 1999-02-01
            Date Removed         : 
            Additional Info      : 
13.01.02.01 DORIS                : NO
            Date Installed       : 
            Date Removed         : 
            Additional Info      : 
13.01.03.01 PRARE                : YES
            Date Installed       : 1997-01-20
            Date Removed         : 1997-02-03
            Additional Info      : Other PRARE installations
                                 : 1996-03-26 to 1996-05-21
                                 : 1996-12-11 to 1996-12-23
                                 : 1997-01-02 to 1997-01-12
13.01.04.01 VLBI                 : YES
            Date Installed       : 1983-01-01
            Date Removed         : 
            Additional Info      : 
13.01.05.01 Gravimeter           : SUPERCONDUCTING
            Date Installed       : 1998-11-01
            Date Removed         : 
            Additional Info      : 
13.01.06.01 Other SLR            : 
            Date Installed       : 
            Date Removed         : 
            Additional Info      : 

13.02.01.01 Local Ties from the SRP to Other Monuments or Systems on Site

         Monument Name           : VLBI, TIGO
         Instrumentation Type    : VLBI
         Instrumentation Status  : MOBILE
         DOMES Number            : 14201S100
         CDP Number              : 7593
         Differential Components (ITRS)
           dx                 [m]: -23.210 +- 0.015
           dy                 [m]: 22.032 +- 0.005
           dz                 [m]: 15.951 +- 0.018
           Date Measured         : 1997-01-01
           Determined by         : ITRF97
         Date Installed          : 1997-01-01
         Date Removed            : 
         Additional Information  : 

13.03.01.01 Eccentricities Between Other Monuments on Site

         From: Monument Name     : 
               DOMES Number      : 
               CDP Number        : 
         To:   Monument Name     : 
               DOMES Number      : 
               CDP Number        : 
         Differential Components (ITRS)
           dx                 [m]: 
           dy                 [m]: 
           dz                 [m]: 
           Date Measured         : 
           Determined by         : 
         Additional Information  : 


14.   Local Events Possibly Affecting Computed Position

14.01 Date                       : 
      Event                      : 
      Additional Information     : 


15.   On-Site, Point of Contact Agency Information

      Agency                     : Bundesamt fuer Kartographie und Geodaesie
      Mailing Address            : Sackenriederstr. 25, 
                                 : D-93444 Koetzting, Germany
      Website                    : 
      Primary Contact
        Contact Name             : Stefan Riepl
        Telephone (primary)      : +49 9941 603205
        Telephone (secondary)    : +49 9941 603333
        Fax                      : +49 9941 603222
        E-mail                   : riepl@wettzell.ifag.de
      Secondary Contact
        Contact Name             : Armin Boeer
        Telephone (primary)      : +49 9941 603111
        Telephone (secondary)    : +49 9941 603333
        Fax                      : +49 9941 603222
        E-mail                   : boer@wettzell.ifag.de
      Tertiary Contact
        Contact Name             : 
        Telephone (primary)      : 
        Telephone (secondary)    : 
        Fax                      : 
        E-mail                   : 
      Additional Information     : 


16.   Responsible Agency (if different from 15.)

      Agency                     : 
      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     : 


17.   More Information

      URL for More Information   : http://www.wettzell.ifag.de
      Hardcopy on File
        Site Map                 : NO
        Site Diagram             : NO
        Horizon Mask             : NO
        Monument Description     : YES
        Site Pictures            : YES
      Additional Information     :