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Beijing: Site Log
Instructions and Update Site Log
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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) : Zhengbin HE Preparer E-mail : hezb@casm.ac.cn Date Prepared : 2023-04-25 Report Type : UPDATE Site Log Format Version : 2.0 Site Log Revision : Back to top 1. Identification of the Ranging System Reference Point (SRP) Site Name : Beijing SLR Station IERS DOMES Number : 21601S004 CDP Pad ID : 7249 Subnetwork : WPLTN Description : AZ EL INTERSECT Monument Description : PILLAR Monument Inscription : N.A. Mark Description : N.A. Date Installed : 1988-12-31 Date Removed : Geologic Characteristic : SANDSTONES Additional Information : Back to top 2. Site Location Information City or Town : Fangshan district State or Province : Beijing Country : China Tectonic Plate : Eurasian plate Local Time (UTC +/- hours) : 8 Approximate Position X coordinate [m]: -2148760.7559 Y coordinate [m]: 4426759.5583 Z coordinate [m]: 4044509.6074 Latitude [deg]: 39.6069 N Longitude [deg]: 115.8920 E Elevation [m]: 82.300 Survey Method : ITRF2014 Date Measured : Additional Information : Back to top 3. General System Information 3.01 System Name : SLR Beijing 4-Character Code : beil CDP System Number : 61 CDP Occupation Number : 02 Eccentricity to SRP (if Not Identical With SRP) North [m]: 0.000 +- 0.000 East [m]: 0.000 +- 0.000 Up [m]: 0.000 +- 0.000 Date Measured : N.A. Date Installed : 1988-12-31 Date Removed : Additional Information : Back to top 4. Telescope Information 4.01 Receiving Telescope Type : CASSEGRAIN Aperture [m]: 0.60 Mount : AZ-EL Date Installed : 1988-12-31 Date Removed : Xmitting Telescope Type : GALILEI Aperture [m]: 0.16 Date Installed : 1988-12-31 Date Removed : Tracking Camera Type : ICCD Model : WAT-902H(just for CCD) Manufacturer : SLR Beijing station Field of View [deg]: 0.30 Minimum Magnitude [mag]: 13 Date Installed : 1988-12-31 Date Removed : 2016-05-30 Transmit/Receive Path : SEPARATE Transmit/Receive Switch : NONE Max Slew Rate Az [deg/s]: 15 Max Slew Rate El [deg/s]: 5 Max Used Tracking Rate Az : 15 Max Used Tracking Rate El : 5 Telescope Shelter : SEALED DOME Daylight Filter Type : Andover/USA Dayl. Filt. Bandwidth [nm]: 0.16 Adjustable Attenuation : RECEIVE Adjustable Field of View : Transmit Efficiency : 0.70 Receive Efficiency : 0.70 Date Installed : 1988-12-31 Date Removed : Additional Information : The image intensifier of the ICCD : was made in Kunming, China 4.02 Receiving Telescope Type : CASSEGRAIN Aperture [m]: 0.60 Mount : AZ-EL Date Installed : 1988-12-31 Date Removed : Xmitting Telescope Type : GALILEI Aperture [m]: 0.16 Date Installed : 1988-12-31 Date Removed : Tracking Camera Type : CCD Model : WAT-120N+ Manufacturer : Watec Field of View [deg]: 0.30 Minimum Magnitude [mag]: 0.15 Date Installed : 2016-05-31 Date Removed : Transmit/Receive Path : SEPARATE Transmit/Receive Switch : NONE Max Slew Rate Az [deg/s]: 15 Max Slew Rate El [deg/s]: 5 Max Used Tracking Rate Az : 15 Max Used Tracking Rate El : 5 Telescope Shelter : SEALED DOME Daylight Filter Type : Barr/USA Dayl. Filt. Bandwidth [nm]: 0.2 Adjustable Attenuation : RECEIVE Adjustable Field of View : N Transmit Efficiency : 0.70 Receive Efficiency : 0.70 Date Installed : 2016-05-31 Date Removed : 2023-04-19 Additional Information : 4.03 Receiving Telescope Type : CASSEGRAIN Aperture [m]: 0.60 Mount : AZ-EL Date Installed : 1988-12-31 Date Removed : Xmitting Telescope Type : GALILEI Aperture [m]: 0.16 Date Installed : 1988-12-31 Date Removed : Tracking Camera Type : CMOS Model : C13440-20U Manufacturer : HAMAMATSU Field of View [deg]: 0.30 Minimum Magnitude [mag]: 12 Date Installed : 2023-03-27 Date Removed : Transmit/Receive Path : SEPARATE Transmit/Receive Switch : NONE Max Slew Rate Az [deg/s]: 15 Max Slew Rate El [deg/s]: 5 Max Used Tracking Rate Az : 15 Max Used Tracking Rate El : 5 Telescope Shelter : SEALED DOME Daylight Filter Type : SPECTRAL FILTER Dayl. Filt. Bandwidth [nm]: Adjustable Attenuation : RECEIVE Adjustable Field of View : NO Transmit Efficiency : 0.70 Receive Efficiency : 0.70 Date Installed : 2023-04-20 Date Removed : Additional Information : Back to top 5. Laser System Information 5.01 Laser Type : ND:YAG Model : Manufacturer : Number of Amplifiers : 3 Primary Wavelength [nm]: 1064 Primary Maximum Energy [mJ]: 1 Secondary Wavelength [nm]: 532 Secondary Max. Energy [mJ]: 30 Xmit Energy Adjustable : NO Additional Information : Pulse Width (FWHM) [ps]: 200 Max. Repetition Rate [Hz]: 10 Fullw. Beam Divergence ["]: 0 - 200 Theoretical Beam Div : Measured Beam Div : Method Used : Additional Information : Final Beam Diameter [m]: 0.01 Eyesafe : NO Eyesafe Standard : N.A. 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 : 1990-05-20 Date Removed : 2010-07-27 Additional Information : 5.02 Laser Type : ND:VAN Model : Manufacturer : Number of Amplifiers : 2 Primary Wavelength [nm]: 1064 Primary Maximum Energy [mJ]: 2.28 Secondary Wavelength [nm]: 532 Secondary Max. Energy [mJ]: 1.45 Xmit Energy Adjustable : NO Additional Information : Pulse Width (FWHM) [ps]: 10.8 Max. Repetition Rate [Hz]: 2000 Fullw. Beam Divergence ["]: 0 - 200 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 : 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 : 2010-07-12 Date Removed : 2012-01-31 Additional Information : 5.03 Laser Type : ND:YVO Model : Manufacturer : Number of Amplifiers : 2 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]: 10 Max. Repetition Rate [Hz]: 1000 Fullw. Beam Divergence ["]: 103 Theoretical Beam Div : Measured Beam Div : Method Used : Additional Information : Final Beam Diameter [m]: 0.05 Eyesafe : NO Eyesafe Standard : N.A. 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 : 2012-01-03 Date Removed : 2016-05-10 Additional Information : 5.04 Laser Type : ND:YVO Model : Manufacturer : Number of Amplifiers : 2 Primary Wavelength [nm]: 1064 Primary Maximum Energy [mJ]: Secondary Wavelength [nm]: 532 Secondary Max. Energy [mJ]: 1.2 Xmit Energy Adjustable : NO Additional Information : Pulse Width (FWHM) [ps]: 10 Max. Repetition Rate [Hz]: 2000 Fullw. Beam Divergence ["]: 103 Theoretical Beam Div : Measured Beam Div : Method Used : Additional Information : Final Beam Diameter [m]: 0.02 Eyesafe : NO Eyesafe Standard : N.A. Polarization on Exit : Laser Fire Control : Laser Energy Monitor : OCCASSIONAL 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 : 2016-05-01 Date Removed : 2019-01-19 Additional Information : 5.05 Laser Type : ND:YVO Model : IC470 Manufacturer : HighQLaser Production GmbH Number of Amplifiers : 0 Primary Wavelength [nm]: 1064 Primary Maximum Energy [mJ]: 2.0 Secondary Wavelength [nm]: 532 Secondary Max. Energy [mJ]: 1.0 Xmit Energy Adjustable : YES Additional Information : Pulse Width (FWHM) [ps]: 10 Max. Repetition Rate [Hz]: 1000 Fullw. Beam Divergence ["]: 103 Theoretical Beam Div : 103 Measured Beam Div : Method Used : Additional Information : Final Beam Diameter [m]: 0.002 Eyesafe : NO Eyesafe Standard : N.A. Polarization on Exit : Laser Fire Control : CONTROLLED Laser Energy Monitor : OCCASSIONAL Start Diode Type : GT106 Manufactorer : Model : Quantum Efficiency [%]: Rise/Fall Time [ps]: Date Installed : Date Removed : Signal Processing : Manufacturer : Model : Date Installed : Date Removed : Additional Information : Date Installed : 2019-01-20 Date Removed : Additional Information : 5.06 Laser Type : ND:YAG Model : Manufacturer : Daheng Optics Number of Amplifiers : 1 Primary Wavelength [nm]: 1064 Primary Maximum Energy [mJ]: N.A. Secondary Wavelength [nm]: 532 Secondary Max. Energy [mJ]: 2.5 Xmit Energy Adjustable : YES Additional Information : Pulse Width (FWHM) [ps]: 25 Max. Repetition Rate [Hz]: 1000 Fullw. Beam Divergence ["]: 103 Theoretical Beam Div : 103 Measured Beam Div : Method Used : Additional Information : Final Beam Diameter [m]: 0.01 Eyesafe : NO Eyesafe Standard : N.A. Polarization on Exit : Laser Fire Control : CONTROLLED Laser Energy Monitor : OCCASSIONAL Start Diode Type : GT106 Manufactorer : Model : Quantum Efficiency [%]: Rise/Fall Time [ps]: Date Installed : Date Removed : Signal Processing : Manufacturer : Model : Date Installed : Date Removed : Additional Information : Date Installed : 2021-12-20 Date Removed : Additional Information : Back to top 6. Receiver System 6.01.01 Primary Chain Wavelength [nm]: 532 Detector Type : C-SPAD Manufacturer : Czech Technical University + Graz Model : SN980610/403 Quantum Efficiency [%]: 20 Nominal Gain : Rise Time [ps]: 100 Jitter (Single PE)[ps]: 22 Field of View Diam ["]: Date Installed : 1998-12-26 Date Removed : Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : TENILEC Model : TC-454 Date Installed : 1994-08-20 Date Removed : 2010-07-31 Amplitude Measurement : NO Return-Rate Controlled: NO Mode of Operation : MULTI PHOTON Additional Information: Time of Flight Observ. : EVENT Manufacturer : Latvia Model : A032-Event Timer Resolution [ps]: 1 Precision [ps]: 10 Date Installed : 2010-07-12 Date Removed : Additional Information : 6.02.01 Secondary Chain Wavelength [nm]: 532 Detector Type : CSPAD Manufacturer : Czech Technical University + Graz Model : SN980610/403 Quantum Efficiency [%]: 20 Nominal Gain : Rise Time [ps]: 10 Jitter (Single PE)[ps]: 22 Field of View Diam ["]: Date Installed : 1998-12-26 Date Removed : Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Graz Model : NO Date Installed : 2010-08-01 Date Removed : Amplitude Measurement : NO Return-Rate Controlled: NO Mode of Operation : MULTI Additional Information: Time of Flight Observ. : EVENT Manufacturer : Latvia Model : A032-Event Timer Resolution [ps]: 1 Precision [ps]: 10 Date Installed : 2010-07-12 Date Removed : 2021-12-20 Additional Information : 6.02.02 Secondary Chain Wavelength [nm]: 532 Detector Type : CSPAD Manufacturer : Czech Technical University + Graz Model : Quantum Efficiency [%]: 20 Nominal Gain : Rise Time [ps]: 10 Jitter (Single PE)[ps]: 22 Field of View Diam ["]: Date Installed : Date Removed : Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Graz Model : Date Installed : 2010-08-01 Date Removed : Amplitude Measurement : NO Return-Rate Controlled: NO Mode of Operation : MULTI Additional Information: Time of Flight Observ. : EVENT Manufacturer : Latvian University Model : A033-ET/USB Resolution [ps]: 1 Precision [ps]: 5 Date Installed : 2021-12-20 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 : Back to top 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]: 30 Average values for LAGEOS Single Shot RMS [mm]: 15 # of Obs per NP : 50 Use of Semi-trains : NO # of Semi-train Tracks : N.A. Range Gate Width [ns]: 10 - 10000 Beam Pointing Accuracy ["]: 5 Angle Encoder Resolution["]: 1 Min. Tracking Elev. [deg]: 0 Laser Polarization @emitter: Operation Months per Year : 12 Days per Week : 7 Hours per Day : 12 Staff per Shift : 1 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 : 1998-12-26 00:00 UT Date Last Applicable : Additional Information : Back to top 8. Calibration 8.01 Calibration Type : POST Target Location : EXTERNAL Target Type : FLAT SURFACE Target Structure : METAL POLE Number of Targets : 1 Target Distance(s) [m]: 188.725 Date Measured : 2002-03-25 Accuracy [mm]: 1.0 Verification : 3 other targets Return-Rate Controlled : YES Eye-Safe Method : Additional Information : Mode of Operation : MULTI PHOTON Calibration performed : 60 Single Shot RMS [mm]: 8 Edit Criterion 1st Chain : ITERATIVE 2.5 SIGMA Edit Criterion 2nd Chain : N.A. Application of Cal Data : AVERAGE Date Installed : 1998-10-21 Date Removed : Additional Information : Back to top 9. Time and Frequency Standards 9.01.01 Frequency Standard Type : QUARTZ Model : 58503A Manufacturer : HP company Short Term Stab. [e-12]: 5 Long Term Stab. [e-12]: 1 Time Reference : GPS Synchronization : GPS Epoch Accuracy [ns]: 100 Date Installed : 1998-12-26 Date Removed : Additional Information : 9.01.02 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 : GPS Epoch Accuracy [ns]: 100 Date Installed : 2021-10-13 Date Removed : Additional Information : 9.02.01 GNSS Timing Rcvr Model : HP58503A Manufacturer : HP company Date Installed : 1998-12-26 Date Removed : Additional Information : 9.03.01 One-way System Calibration Date performed : Direction Calibrated : Additional Information : Back to top 10. Preprocessing Information 10.01 On-site NP Generation : YES Data Screening : POLYNOMIAL Return-Rate Rejection : Edit Criterion 1st Chain : 2.5 SIGMA Edit Criterion 2nd Chain : N.A. Upload interval : AFTER EACH SHIFT Date First Applicable : 1994-12-30 HH:MM UT Date Last Applicable : Additional Information : Back to top 11. Aircraft Detection 11.01 Detection Type : MOUNT OBSERVER Manufacturer/Provider : Automatic Laser Shutoff : Alarms Recorded : Hazard Distance [km]: Date Installed : Date Removed : Additional Information : Back to top 12. Meteorological Instrumentation 12.01.01 Pressure Sensor Model : PTU-200 Manufacturer : Vaisala, Finland Recording Interval : PER PASS Accuracy [mbar]: 0.5 Height Diff to SRP [m]: -1.2 Distance from SRP [m]: Date Installed : 1998-06-30 HH:MM UT Calibration Interval : Every 2 years Date Removed : Additional Information : 12.02.01 Temp Sensor Model : HMP-450 Manufacturer : Vaisala, Finland Recording Interval : Per Pass Accuracy [deg C]: 0.1 Date Installed : 1998-06-30 HH:MM UT Calibration Interval : Every 2 years Date Removed : Additional Information : 12.03.01 Humidity Sensor Model : HMP-450 Manufacturer : Vaisala, Finland Recording Interval : Per Pass Accuracy [% rel h]: 2.0 Date Installed : 1998-06-30 HH:MM UT Calibration Interval : Every 2 years Date Removed : Additional Information : Back to top 13. Local Ties, Eccentricities, and Collocation Information 13.01 Collocated Permanent Geodetic Systems 13.01.01.01 GNSS : IGS Date Installed : 1995-09-20 Date Removed : Additional Info : 13.01.02.01 DORIS : NO Date Installed : 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 : ABSOLUTE 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 : BJFS Instrumentation Type : GNSS(Trimble NetR8) Instrumentation Status : PERMANENT DOMES Number : 21601M001 CDP Number : Differential Components (ITRS) dx [m]: -16.5167 +- 0.0001 dy [m]: 118.3174 +- 0.0001 dz [m]: -146.2830 +- 0.000 Date Measured : 2011-10-20 Determined by : The Chinese Academy of Surveying and Mapping Date Installed : 1995-09-15 Date Removed : Additional Information : Back to top 14. Local Events Possibly Affecting Computed Position 14.01 Date : Event : Additional Information : Back to top 15. On-Site, Point of Contact Agency Information Agency : Chinese Academy of Surveying and mapping Mailing Address : 28 Lianhuachi Road : 100830 Beijing,China Website : www.casm.ac.cn Primary Contact Contact Name : Chunmei ZHAO Telephone (primary) : 010-63881692 Telephone (secondary) : 010-63881323 Fax : 010-63880804 E-mail : zcm@casm.ac.cn Secondary Contact Contact Name : Zhengbin HE Telephone (primary) : 010-63881323 Telephone (secondary) : 010-63881309 Fax : 010-63880804 E-mail : hezb@casm.ac.cn Tertiary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : Back to top 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 : Back to top 17. More Information URL for More Information : N.A. Hardcopy on File Site Map : NO Site Diagram : NO Horizon Mask : NO Monument Description : NO Site Pictures : NO Additional Information : Back to top
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