ILRS Site and System Information Form
      International Laser Ranging Service

 0.   Form

      Prepared by (Full Name)    : Jens Steinborn
      Preparer E-mail            : jens.steinborn@digos.eu
      Date Prepared              : 2023-03-06
      Report Type                : UPDATE
      Site Log Format Version    : 2.0
      Site Log Revision          : 2


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

      Site Name                  : Tsukuba Space Center
      IERS DOMES Number          : 21797S001
      CDP Pad ID                 : 7306
      Subnetwork                 : WPLTN
      Description                : AZ EL INTERSECT
      Monument Description       : N.A.
      Monument Inscription       : N.A.
      Mark Description           : N.A.
      Date Installed             : 2022-06-23
      Date Removed               : 
      Geologic Characteristic    : 
      Additional Information     : 


 2.   Site Location Information

      City or Town               : Tsukuba
      State or Province          : Ibaraki
      Country                    : Japan
      Tectonic Plate             : NORTH AMERICAN
      Local Time (UTC +/- hours) : 9
      Approximate Position
        X coordinate          [m]: -3961641.028
        Y coordinate          [m]: 3308774.456
        Z coordinate          [m]: 3734291.464
        Latitude            [deg]: 36.0675 N
        Longitude           [deg]: 140.1313 E
        Elevation             [m]: 68.21
      Survey Method              : Initial SLR solution
      Date Measured              : 2022-12-01
      Additional Information     : Ellips. height


 3.   General System Information

 3.01 System Name                : Tsukuba
      4-Character Code           : TKBL
      CDP System Number          : 93
      CDP Occupation Number      : 01
      Eccentricity to SRP (if Not Identical With SRP)
        North                 [m]: 
        East                  [m]: 
        Up                    [m]: 
        Date Measured            : 
      Date Installed             : 2022-06-23
      Date Removed               : 
      Additional Information     : 


 4.   Telescope Information

 4.01 Receiving Telescope Type   : RITCHE-CHRETIEN
        Aperture              [m]: 0.8
        Mount                    : AZ-EL
      Date Installed             : 2022-06-23
      Date Removed               : 
      Xmitting Telescope Type    : GALILEI
        Aperture              [m]: 0.075
      Date Installed             : 2022-06-23
      Date Removed               : 
      Tracking Camera Type       : CMOS
        Model                    : ASI 120MM
        Manufacturer             : ZWO
        Field of View       [deg]: 0.07
        Minimum Magnitude   [mag]: 
      Date Installed             : 2022-06-23
      Date Removed               : 
      Transmit/Receive Path      : SEPARATE
      Transmit/Receive Switch    : N.A.
      Max Slew Rate Az    [deg/s]: 10
      Max Slew Rate El    [deg/s]: 10
      Max Used Tracking Rate Az  : 5
      Max Used Tracking Rate El  : 5
      Telescope Shelter          : DOME
      Daylight Filter Type       : SPECTRAL FILTER
      Dayl. Filt. Bandwidth  [nm]: 0.3
      Adjustable Attenuation     : TRANSMIT
      Adjustable Field of View   : YES
      Transmit Efficiency        : 0.9
      Receive Efficiency         : 0.5
      Date Installed             : 2022-06-23
      Date Removed               : 
      Additional Information     : 


 5.   Laser System Information

 5.01 Laser Type                 : ND:YAG
      Model                      : Compiler Compact 532/1064
      Manufacturer               : Passat Ltd
      Number of Amplifiers       : 1
      Primary Wavelength     [nm]: 1064
      Primary Maximum Energy [mJ]: 0.4
      Secondary Wavelength   [nm]: 532
      Secondary Max. Energy  [mJ]: 0.3
      Xmit Energy Adjustable     : YES
        Additional Information   : Output energy can be divided between 
                                 : 532nm and 1064nm output.
      Pulse Width (FWHM)     [ps]: 8
      Max. Repetition Rate   [Hz]: 1000
      Fullw. Beam Divergence  ["]: 5.8 - 8.0
        Theoretical Beam Div     : 
        Measured Beam Div        : 
          Method Used            : 
          Additional Information : 
      Final Beam Diameter     [m]: 0.06
      Eyesafe                    : NO
      Eyesafe Standard           : N.A.
      Polarization on Exit       : LINEAR
      Laser Fire Control         : SYNCRONISED TO UTC
      Laser Energy Monitor       : ON-CALIBRATION
      Start Diode Type           : PIN DIODE
        Manufactorer             : Osram
        Model                    : SFH 229
        Quantum Efficiency    [%]: 
        Rise/Fall Time       [ps]: 10000
        Date Installed           : 2022-06-23
        Date Removed             : 
        Signal Processing        : ECL2NIM Discriminator
          Manufacturer           : DiGOS Potsdam GmbH
          Model                  : 2ch ECL2NIM
          Date Installed         : 2022-06-23
          Date Removed           : 
          Additional Information : Leading-edge discriminator
      Date Installed             : 2022-06-23
      Date Removed               : 
      Additional Information     : 

 5.02 Laser Type                 : ND:YAG
      Model                      : Compiler Compact 532/1064
      Manufacturer               : Passat Ltd
      Number of Amplifiers       : 1
      Primary Wavelength     [nm]: 1064
      Primary Maximum Energy [mJ]: 0.4
      Secondary Wavelength   [nm]: 
      Secondary Max. Energy  [mJ]: 
      Xmit Energy Adjustable     : YES
        Additional Information   : Output energy can be divided between 
                                 : 532nm and 1064nm output.
      Pulse Width (FWHM)     [ps]: 7
      Max. Repetition Rate   [Hz]: 1000
      Fullw. Beam Divergence  ["]: 12 - 14
        Theoretical Beam Div     : 
        Measured Beam Div        : 
          Method Used            : 
          Additional Information : 
      Final Beam Diameter     [m]: 0.06
      Eyesafe                    : NO
      Eyesafe Standard           : N.A.
      Polarization on Exit       : LINEAR
      Laser Fire Control         : SYNCRONISED TO UTC
      Laser Energy Monitor       : ON-CALIBRATION
      Start Diode Type           : PIN DIODE
        Manufactorer             : Osram
        Model                    : SFH 229
        Quantum Efficiency    [%]: 
        Rise/Fall Time       [ps]: 10000
        Date Installed           : 2022-06-23
        Date Removed             : 
        Signal Processing        : ECL2NIM Discriminator
          Manufacturer           : DiGOS Potsdam GmbH
          Model                  : 2ch ECL2NIM
          Date Installed         : 2022-06-23
          Date Removed           : 
          Additional Information : Leading-edge discriminator
      Date Installed             : 2022-06-23
      Date Removed               : 
      Additional Information     : S/N 200624

 6.   Receiver System

 6.01.01 Primary Chain
         Wavelength          [nm]: 532
         Detector Type           : CSPAD
           Manufacturer          : PESO Consulting
           Model                 : K14
           Quantum Efficiency [%]: 42
           Nominal Gain          : N.A.
           Rise Time         [ps]: 1500
           Jitter (Single PE)[ps]: 45
           Field of View Diam ["]: 20 - 250
           Date Installed        : 2022-06-23
           Date Removed          : 
         Amplifier Type          : N.A.
           Manufacturer          : 
           Model                 : 
           Gain                  : 
           Bandwidth             : 
           Date Installed        : 
           Date Removed          : 
           Additional Information: 
         Signal Processing       : ECL2NIM Discriminator
           Manufacturer          : DiGOS Potsdam GmbH
           Model                 : 2ch ECL2NIM
           Date Installed        : 2022-06-23
           Date Removed          : 
           Amplitude Measurement : NO
           Return-Rate Controlled: YES
           Mode of Operation     : SINGLE
           Additional Information: 
         Time of Flight Observ.  : EVENT
           Manufacturer          : University of Riga, Inst. for Electronics
           Model                 : A033-ET
           Resolution        [ps]: 1
           Precision         [ps]: 4
           Date Installed        : 2022-06-23
           Date Removed          : 
         Additional Information  : ET S/N #033065

 6.02.01 Secondary Chain
         Wavelength          [nm]: 1064
         Detector Type           : SPAD
           Manufacturer          : Princeton Lightwave
           Model                 : PGA-200
           Quantum Efficiency [%]: 30
           Nominal Gain          : N.A.
           Rise Time         [ps]: 1500
           Jitter (Single PE)[ps]: 45
           Field of View Diam ["]: 20 - 250
           Date Installed        : 2022-06-23
           Date Removed          : 
         Amplifier Type          : N.A.
           Manufacturer          : 
           Model                 : 
           Gain                  : 
           Bandwidth             : 
           Date Installed        : 
           Date Removed          : 
           Additional Information: 
         Signal Processing       : N.A.
           Manufacturer          : 
           Model                 : 
           Date Installed        : 
           Date Removed          : 
           Amplitude Measurement : NO
           Return-Rate Controlled: YES
           Mode of Operation     : SINGLE
           Additional Information: 
         Time of Flight Observ.  : EVENT
           Manufacturer          : University of Riga, Inst. for Electronics
           Model                 : A033-ET
           Resolution        [ps]: 1
           Precision         [ps]: 4
           Date Installed        : 2022-06-23
           Date Removed          : 
         Additional Information  : ET S/N #033065

 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           : YES
        Moon                     : NO
      Ave. Pass Switch Time   [s]: 3
      Average values for LAGEOS
        Single Shot RMS      [mm]: 10
        # of Obs per NP          : 1000
        Use of Semi-trains       : N.A.
        # of Semi-train Tracks   : 
      Range Gate Width       [ns]: 0 - 1000
      Beam Pointing Accuracy  ["]: 5
      Angle Encoder Resolution["]: 0.01
      Min. Tracking Elev.   [deg]: 20
      Laser Polarization @emitter: LINEAR
      Operation
        Months per Year          : 
        Days per Week            : 
        Hours per Day            : 
        Staff per Shift          : 
        System Shared With       : NOTHING
        Time Allocated to SLR [%]: 100
        Remotely Controllable    : YES
      Tracking Restrictions
        Go/No-go flag            : YES
          Satellite Verification : 
          Date Verified          : 
        Maximum elevation        : YES
          Satellite Verification : 
          Date Verified          : 
        Pass segments            : YES
          Satellite Verification : 
          Date Verified          : 
        Schedule segments        : YES
          Satellite Verification : 
          Date Verified          : 
        Maximum laser power limit: YES
          Satellite Verification : 
        Date Verified            : 
      Date First Applicable      : 2022-06-23 00:00 UT
      Date Last Applicable       : 
      Additional Information     : 


 8.   Calibration

 8.01 Calibration Type           : HOURLY
      Target Location            : INTERNAL
      Target Type                : FIBER
      Target Structure           : N.A.
      Number of Targets          : 2
      Target Distance(s)      [m]: 2.446, 1.697 
        Date Measured            : 2022-10-20
        Accuracy             [mm]: 1
        Verification             : 
      Return-Rate Controlled     : YES
      Eye-Safe Method            : OTHER
        Additional Information   : 
      Mode of Operation          : SINGLE PHOTON
      Calibration performed      : HOUR
      Single Shot RMS        [mm]: 5 - 7
      Edit Criterion 1st Chain   : ITERATIVE 2.2 SIGMA
      Edit Criterion 2nd Chain   : ITERATIVE 2.2 SIGMA
      Application of Cal Data    : AVERAGE
      Date Installed             : 2022-06-23
      Date Removed               : 
      Additional Information     : 

 8.02 Calibration Type           : N.A.
      Target Location            : EXTERNAL WITHIN DOME
      Target Type                : FOLDED OPTICS
      Target Structure           : METAL POLE
      Number of Targets          : 2
      Target Distance(s)      [m]: 1.451, 1.312
        Date Measured            : 2022-10-20
        Accuracy             [mm]: 1
        Verification             : 
      Return-Rate Controlled     : YES
      Eye-Safe Method            : OTHER
        Additional Information   : 
      Mode of Operation          : SINGLE PHOTON
      Calibration performed      : VERIFICATION
      Single Shot RMS        [mm]: 4 - 7
      Edit Criterion 1st Chain   : ITERATIVE 2.2 SIGMA
      Edit Criterion 2nd Chain   : ITERATIVE 2.2 SIGMA
      Application of Cal Data    : AVERAGE
      Date Installed             : 2022-06-23
      Date Removed               : 
      Additional Information     : In dome calibration target for verification


 9.   Time and Frequency Standards

 9.01.01 Frequency Standard Type : OCXO DHQ
         Model                   :  Lantime M1000 / GNS181
         Manufacturer            : Meinberg
         Short Term Stab.  [e-12]: 2
         Long Term Stab.   [e-12]: 1
         Time Reference          : GPS
         Synchronization         : GPS
         Epoch Accuracy      [ns]: 50
         Date Installed          : 2022-06-23
         Date Removed            : 
         Additional Information  : 

 9.02.01 GNSS Timing Rcvr Model  : Lantime M1000 / GNS181
         Manufacturer            : Meinberg
         Date Installed          : 2022-06-23
         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             : CPF+POLYNOMIAL
      Return-Rate Rejection      : 15
      Edit Criterion 1st Chain   : ITERATIVE 2.2 SIGMA
      Edit Criterion 2nd Chain   : ITERATIVE 2.2 SIGMA
      Upload interval            : AFTER EACH SHIFT
      Date First Applicable      : 2022-06-23 00:00 UT
      Date Last Applicable       : 
      Additional Information     : Leading Edge 20mm rejection for Lageos1/2;
                                 : Leading Edge 300mm rejection for Ajisai;


11.   Aircraft Detection

11.01 Detection Type             : ADS-B
      Manufacturer/Provider      : Jetvision Radarcape
      Automatic Laser Shutoff    : YES
      Alarms Recorded            : YES
      Hazard Distance        [km]: 30
      Date Installed             : 2022-06-23
      Date Removed               : 
      Additional Information     : 

11.02 Detection Type             : RADAR
      Manufacturer/Provider      : KBR
      Automatic Laser Shutoff    : YES
      Alarms Recorded            : YES
      Hazard Distance        [km]: 24.4
      Date Installed             : 2022-07-30
      Date Removed               : 
      Additional Information     : 

12.   Meteorological Instrumentation

12.01.01 Pressure Sensor Model   : PTU300
         Manufacturer            : Vaisala
         Recording Interval      : 00:01:00
         Accuracy          [mbar]: +-0.07
         Height Diff to SRP   [m]: 0.16
         Distance from SRP    [m]: 5
         Date Installed          : 2022-06-23 00:00 UT
         Calibration Interval    : YEARLY
         Date Removed            : 
         Additional Information  : 

12.02.01 Temp Sensor Model       : PTU300
         Manufacturer            : Vaisala
         Recording Interval      : 00:01:00
         Accuracy         [deg C]: +-0.1
         Date Installed          : 2022-06-23 00:00 UT
         Calibration Interval    : YEARLY
         Date Removed            : 
         Additional Information  : 

12.03.01 Humidity Sensor Model   : PTU300
         Manufacturer            : Vaisala
         Recording Interval      : 00:01:0
         Accuracy       [% rel h]: +-1.0
         Date Installed          : 2022-06-23 00:00 UT
         Calibration Interval    : YEARLY
         Date Removed            : 
         Additional Information  : 


13.   Local Ties, Eccentricities, and Collocation Information

13.01 Collocated Permanent Geodetic Systems

13.01.01.01 GNSS                 : 
            Date Installed       : 
            Date Removed         : 
            Additional Info      : 
13.01.02.01 DORIS                : 
            Date Installed       : 
            Date Removed         : 
            Additional Info      : 
13.01.03.01 PRARE                : 
            Date Installed       : 
            Date Removed         : 
            Additional Info      : 
13.01.04.01 VLBI                 : 
            Date Installed       : 
            Date Removed         : 
            Additional Info      : 
13.01.05.01 Gravimeter           : 
            Date Installed       : 
            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           : 
         Instrumentation Type    : 
         Instrumentation Status  : 
         DOMES Number            : 
         CDP Number              : 
         Differential Components (ITRS)
           dx                 [m]: 
           dy                 [m]: 
           dz                 [m]: 
           Date Measured         : 
           Determined by         : 
         Date Installed          : 
         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                     : Japan Aerospace Exploration Agency
      Mailing Address            : 305-8505  Sengen2-1-1, Tsukuba-city, Ibaraki
      Website                    : 
      Primary Contact
        Contact Name             : Shinchi Nakamura
        Telephone (primary)      : +81 70 3117 7264
        Telephone (secondary)    : 
        Fax                      : 
        E-mail                   : nakamura.shinichi@jaxa.jp
      Secondary Contact
        Contact Name             : Takehiro Matsumoto
        Telephone (primary)      : +81 70 1170 3612
        Telephone (secondary)    : 
        Fax                      : 
        E-mail                   : matsumoto.takehiro@jaxa.jp
      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   : 
      Hardcopy on File
        Site Map                 : 
        Site Diagram             : 
        Horizon Mask             : 
        Monument Description     : 
        Site Pictures            : 
      Additional Information     :