ILRS Site and System Information Form
      International Laser Ranging Service

 0.   Form

      Prepared by (Full Name)    : Jie Zhang
      Preparer E-mail            : zhangjie@asch.whigg.ac.cn
      Date Prepared              : 2023-02-09
      Report Type                : UPDATE
      Site Log Format Version    : 2.0
      Site Log Revision          : 2.0


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

      Site Name                  : JiuFeng
      IERS DOMES Number          : 21602S008
      CDP Pad ID                 : 7396
      Subnetwork                 : WPLTN
      Description                : AZ EL INTERSECT
      Monument Description       : N.A.
      Monument Inscription       : N.A.
      Mark Description           : N.A.
      Date Installed             : 2017-06-21
      Date Removed               : 
      Geologic Characteristic    : BEDROCK
      Additional Information     : The site is located in southeast of Wuhan,
                                 : 25 km away from town. The SRP is center of 
                                 : the cross between azimuth and elevation 
                                 : rotating shaft


 2.   Site Location Information

      City or Town               : Wuhan
      State or Province          : Hubei
      Country                    : China
      Tectonic Plate             : Eurasian
      Local Time (UTC +/- hours) : 8
      Approximate Position
        X coordinate          [m]: -2279755.840887
        Y coordinate          [m]: 5004737.428914
        Z coordinate          [m]: 3219791.659741
        Latitude            [deg]: 30.515667 N
        Longitude           [deg]: 114.490167 E
        Elevation             [m]: 76.7
      Survey Method              : ITRF2020
      Date Measured              : 2022-07-22
      Additional Information     : The site is located at the top of the
                                 : Jiufeng hill


 3.   General System Information

 3.01 System Name                : JiuFeng
      4-Character Code           : JFNL
      CDP System Number          : 47
      CDP Occupation Number      : 01
      Eccentricity to SRP (if Not Identical With SRP)
        North                 [m]: 
        East                  [m]: 
        Up                    [m]: 
        Date Measured            : 
      Date Installed             : 
      Date Removed               : 
      Additional Information     : 


 4.   Telescope Information

 4.01 Receiving Telescope Type   : CASSEGRAIN
        Aperture              [m]: 1
        Mount                    : AZ-EL
      Date Installed             : 2017-06-21
      Date Removed               : 
      Xmitting Telescope Type    : REFRACTOR
        Aperture              [m]: 0.2
      Date Installed             : 2017-06-21
      Date Removed               : 
      Tracking Camera Type       : CCD
        Model                    : WAT-910HX
        Manufacturer             : Watec/Japan
        Field of View       [deg]: 0.04
        Minimum Magnitude   [mag]: 13
      Date Installed             : 2017-06-21
      Date Removed               : 
      Transmit/Receive Path      : SEPARATE
      Transmit/Receive Switch    : NONE
      Max Slew Rate Az    [deg/s]: 1
      Max Slew Rate El    [deg/s]: 0.5
      Max Used Tracking Rate Az  : 5
      Max Used Tracking Rate El  : 2
      Telescope Shelter          : DOME
      Daylight Filter Type       : Oven controlled spectral filter
      Dayl. Filt. Bandwidth  [nm]: 0.15
      Adjustable Attenuation     : NO
      Adjustable Field of View   : 
      Transmit Efficiency        : 95
      Receive Efficiency         : 90
      Date Installed             : 2017-06-21
      Date Removed               : 
      Additional Information     : 


 5.   Laser System Information

 5.01 Laser Type                 : ND:YAG
      Model                      : Sagittar
      Manufacturer               : Daheng Optics
      Number of Amplifiers       : 3
      Primary Wavelength     [nm]: 1064
      Primary Maximum Energy [mJ]: N.A.
      Secondary Wavelength   [nm]: 532
      Secondary Max. Energy  [mJ]: 1.5
      Xmit Energy Adjustable     : NO
        Additional Information   : 
      Pulse Width (FWHM)     [ps]: 38
      Max. Repetition Rate   [Hz]: 4000
      Fullw. Beam Divergence  ["]: 108
        Theoretical Beam Div     : 
        Measured Beam Div        : 
          Method Used            : 
          Additional Information : 
      Final Beam Diameter     [m]: 0.0017
      Eyesafe                    : NO
      Eyesafe Standard           : N.A.
      Polarization on Exit       : LINEAR
      Laser Fire Control         : CONTROLLED
      Laser Energy Monitor       : NONE
      Start Diode Type           : Silicon
        Manufactorer             : thorlabs
        Model                    : FDS025
        Quantum Efficiency    [%]: 
        Rise/Fall Time       [ps]: 47/240
        Date Installed           : 2023-02-09
        Date Removed             : 
        Signal Processing        : 
          Manufacturer           : 
          Model                  : 
          Date Installed         : 
          Date Removed           : 
          Additional Information : 
      Date Installed             : 2023-02-09
      Date Removed               : 
      Additional Information     : 


 6.   Receiver System

 6.01.01 Primary Chain
         Wavelength          [nm]: 532
         Detector Type           : CSPAD
           Manufacturer          : PESO Consulting
           Model                 : 
           Quantum Efficiency [%]: 20
           Nominal Gain          : 
           Rise Time         [ps]: 1500
           Jitter (Single PE)[ps]: 25
           Field of View Diam ["]: 50
           Date Installed        : 2018-09-10
           Date Removed          : 
         Amplifier Type          : 
           Manufacturer          : 
           Model                 : 
           Gain                  : 
           Bandwidth             : 
           Date Installed        : 
           Date Removed          : 
           Additional Information: 
         Signal Processing       : Time Walk Compensated
           Manufacturer          : Czech University of Technology
           Model                 : 
           Date Installed        : 
           Date Removed          : 
           Amplitude Measurement : YES
           Return-Rate Controlled: NO
           Mode of Operation     : Single to Multi Photons
           Additional Information: 
         Time of Flight Observ.  : EVENT
           Manufacturer          : Latvian University
           Model                 : A033-ET
           Resolution        [ps]: 1
           Precision         [ps]: 5
           Date Installed        : 2018-09-10
           Date Removed          : 
         Additional Information  : 

 6.02.01 Secondary 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  : 

 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)   : NIGHT
        Low Altitude (400-2000)  : NIGHT
        LAGEOS/LARES             : NIGHT
        GLONASS                  : NIGHT
        Etalon                   : NIGHT
        GNSS                     : NIGHT
        Geosynchronous           : NIGHT
        Moon                     : NO
      Ave. Pass Switch Time   [s]: 25
      Average values for LAGEOS
        Single Shot RMS      [mm]: 14
        # of Obs per NP          : 2500
        Use of Semi-trains       : NO
        # of Semi-train Tracks   : N.A.
      Range Gate Width       [ns]: 10 - 10000
      Beam Pointing Accuracy  ["]: 2
      Angle Encoder Resolution["]: 0.1
      Min. Tracking Elev.   [deg]: 5
      Laser Polarization @emitter: UNKNOWN
      Operation
        Months per Year          : 12
        Days per Week            : 7
        Hours per Day            : 8
        Staff per Shift          : 2
        System Shared With       : NO
        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           : HOURLY
      Target Location            : INTERNAL
      Target Type                : 2 diffuse aluminum sheet, 2 attenuation lens
      Target Structure           : METAL POLE
      Number of Targets          : 1
      Target Distance(s)      [m]: 2.339
        Date Measured            : 2018-10-25
        Accuracy             [mm]: 2
        Verification             : 
      Return-Rate Controlled     : NO
      Eye-Safe Method            : NO
        Additional Information   : 
      Mode of Operation          : FEW PHOTON
      Calibration performed      : HOUR
      Single Shot RMS        [mm]: 6
      Edit Criterion 1st Chain   : ITERATIVE 2.2 SIGMA
      Edit Criterion 2nd Chain   : N.A.
      Application of Cal Data    : AVERAGE
      Date Installed             : 2018-09-10
      Date Removed               : 
      Additional Information     : low temperature drift coaxial-cable for echo


 9.   Time and Frequency Standards

 9.01.01 Frequency Standard Type : Oven Controlled Crystal Oscillator
         Model                   : Meridian Precision GPS TimeBase
         Manufacturer            : EndRun
         Short Term Stab.  [e-12]: 0.1
         Long Term Stab.   [e-12]: 0.1
         Time Reference          : GPS
         Synchronization         : UTC
         Epoch Accuracy      [ns]: 50
         Date Installed          : 2020-08-31
         Date Removed            : 
         Additional Information  : 

 9.02.01 GNSS Timing Rcvr Model  : Meridian Precision GPS TimeBase
         Manufacturer            : EndRun
         Date Installed          : 2020-08-31
         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             : Polyfit fit + orbit solve
      Return-Rate Rejection      : 
      Edit Criterion 1st Chain   : 2.5 SIGMA
      Edit Criterion 2nd Chain   : N.A.
      Upload interval            : DAILY
      Date First Applicable      : 2018-09-29 HH:MM UT
      Date Last Applicable       : 
      Additional Information     : 


11.   Aircraft Detection

11.01 Detection Type             : NONE
      Manufacturer/Provider      : 
      Automatic Laser Shutoff    : 
      Alarms Recorded            : 
      Hazard Distance        [km]: 
      Date Installed             : 
      Date Removed               : 
      Additional Information     : 


12.   Meteorological Instrumentation

12.01.01 Pressure Sensor Model   : PTU303
         Manufacturer            : Vaisala
         Recording Interval      : 10 minute
         Accuracy          [mbar]: 0.1
         Height Diff to SRP   [m]: 0.5
         Distance from SRP    [m]: 5
         Date Installed          : 2018-09-10 HH:MM UT
         Calibration Interval    : YEARLY
         Date Removed            : 
         Additional Information  : 

12.02.01 Temp Sensor Model       : PTU303
         Manufacturer            : Vaisala
         Recording Interval      : 10 minute
         Accuracy         [deg C]: 0.2
         Date Installed          : 2018-09-10 HH:MM UT
         Calibration Interval    : YEARLY
         Date Removed            : 
         Additional Information  : 

12.03.01 Humidity Sensor Model   : PTU3
         Manufacturer            : Vaisala
         Recording Interval      : 10 minute
         Accuracy       [% rel h]: 1
         Date Installed          : 2018-09-10 HH:MM 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                 : IGS
            Date Installed       : 2012-10-10
            Date Removed         : 
            Additional Info      : 
13.01.02.01 DORIS                : YES
            Date Installed       : 2003-12-10
            Date Removed         : 
            Additional Info      : 
13.01.03.01 PRARE                : NO
            Date Installed       : 
            Date Removed         : 
            Additional Info      : 
13.01.04.01 VLBI                 : NO
            Date Installed       : 
            Date Removed         : 
            Additional Info      : 
13.01.05.01 Gravimeter           : SUPERCONDUCTING
            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           : JFNG
         Instrumentation Type    : GPS
         Instrumentation Status  : PERMANENT
         DOMES Number            : 21602M006
         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     : JIUC
               DOMES Number      : 21602S007
               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                     : APM, CAS
      Mailing Address            : 340 XuDong Rd, Wuhan 430077,
                                 : Hubei, P.R. China
      Website                    : 
      Primary Contact
        Contact Name             : Jie Zhang
        Telephone (primary)      : 086-027-87635361
        Telephone (secondary)    : 086-15802727112
        Fax                      : 086-027-68881362
        E-mail                   : zhangjie@asch.whigg.ac.cn
      Secondary Contact
        Contact Name             : Bobi Peng
        Telephone (primary)      : 086-027-68881318
        Telephone (secondary)    : 086-13971347360
        Fax                      : 086-027-68881362
        E-mail                   : pengbibo@asch.whigg.ac.cn
      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     :