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ILRS Home  Stations Site Listing Beijing
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Beijing: 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. FormSection: 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) : Qu Feng
Preparer E-mail : qufeng@casm.ac.cn
Date Prepared : 2004-11-01
Report Type : NEW
Format Version : 2.0
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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 : N.A.
Monument Inscription : N.A.
Mark Description : N.A.
Date Installed : 1988-12-31
Date Removed : (yyyy-mm-dd)
Geologic Characteristic : SANDSTONES
Additional Information : (Full SOD is 72496101)
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2. Site Location Information
City or Town : Fangshan district
State or Province : Beijing
Country : China
Tectonic Plate : Eurasian plate
Approximate Position
X coordinate [m]: -2148760.3004
Y coordinate [m]: 4426759.6641
Z coordinate [m]: 4044509.7071
Latitude [deg]: 115.8920 N
Longitude [deg]: 39.6069 E
Elevation [m]: 81.666
Additional Information : The site is about 60 kms from the
city center of Beijing
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3. General System Information
3.01 System Name : SLR Beijing
4-Character Code : beil
CDP System Number : 61
CDP Occupation Number : 01
Eccentricity to SRP (if Not Identical With SRP)
North [m]: 0
East [m]: 0
Up [m]: 0
Date Measured : N.A.
Date Installed : 1988-12-31
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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4. Telescope Information
4.xx Receiving Telescope Type : CASSEGRAIN
Aperture [m]: 0.60
Mount : AZ-EL
xmitting Telescope Type : GALILEI
Aperture [m]: 0.16
Tracking Camera Type : ICCD
Model : WAT-902H(just for CCD)
Manufacturer : SLR Beijing station
Field of View [deg]: 0.30
Minimum Magnitude [mag]: 13
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 : N.A
Dayl. Filt. Bandwidth [nm]: N.A
Adjustable Attenuation : RECEIVE
Transmit Efficiency : 0.70
Receive Efficiency : 0.70
Date Installed : 1988-12-31
Date Removed : (yyyy-mm-dd)
Additional Information : The image intensifier of the ICCD
was made in Kunming, China
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5. Laser System Information
5.01 Laser Type : ND:YAG
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
Pulse Width (FWHM) [ps]: 200
Max. Repetition Rate [Hz]: 10
Fullw. Beam Divergence ["]: 0-200
Final Beam Diameter [m]: 0.01
Eyesafe : NO
Eyesafe Standard : N.A.
Date Installed : 1990-5-20
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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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 ["]: (minimum-maximum or fixed value)
Date Installed : 1998-12-26
Date Removed : (yyyy-mm-dd)
Signal Processing : CFD
Manufacturer : TENILEC
Model : TC-454
Date Installed : 1994-08-20
Date Removed : (yyyy-mm-dd)
Amplitude Measurement : NO
Return-rate Controlled: NO
Mode of Operation : MULTI PHOTON
Time of Flight Observ. : INTERVAL
Manufacturer : STANFORD
Model : SR620
Resolution [ps]: 1
Precision [ps]: 20
Date Installed : 2001-1-20
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/NIGHT
Low Altitude (400-2000) : YES/NIGHT
Lageos : YES/NIGHT
GLONASS : YES/NIGHT
Etalon : YES/NIGHT
GPS : YES/NIGHT
Moon : NO
Avge 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
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
Date First Applicable : 1998-12-26
Date Last Applicable : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
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8. Calibration
8.01 Calibration Type : POST
Target Location : EXTERNAL
Target Type : FLAT SURFACE
Target Structure : METAL POLE
Target Distance [m]: 188.725
Date Measured : 2002-03-25
Accuracy (mm) [mm]: 1.0
Verification : 3 other targets
Return-rate Controlled : YES
Mode of Operation : MULTI PHOTON
Average Cal Interval [min]: 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 : (yyyy-mm-dd)
Additional Information : (multiple lines)
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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 : (yyyy-mm-dd)
Additional Information : (multiple lines)
9.02.01 GPS Timing Rcvr Model : HP58503A
Manufacturer : HP company
Date Installed : 1998-12-26
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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10. Preprocessing Information
10.01 On-site NP Generation : YES
Data Screening : IRV+POLYNOMIAL
Edit Criterion 1st Chain : 2.5 SIGMA
Edit Criterion 2nd Chain : N.A.
Upload interval : AFTER EACH SHIFT
Date First Applicable : 1994-12-30
Date Last Applicable : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
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11. Aircraft Detection
11.01 Detection Type : MOUNT OBSERVER
Date Installed : (yyyy-mm-dd)
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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12. Meteorological Instrumentation
12.01.01 Pressure Sensor Model : PUT-200
Manufacturer : Vaisala, Finland
Recording Interval : PER PASS
Accuracy [mbar]: 0.5
Height Diff to SRP [m]:-1.2
Date Installed : 1998-6-30
Calibration Interval : Every 2 years
Date Removed : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
12.02.01 Temp Sensor Model : HMP-450
Manufacturer : Vaisala, Finland
Recording Interval [hms]: Per Pass
Accuracy [deg C]: 0.1
Date Installed : 1998-6-30
Calibration Interval : Every 2 years
Date Removed : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
12.03.01 Humidity Sensor Model : HMP-450
Manufacturer : Vaisala, Finland
Recording Interval : Per Pass
Accuracy [% rel h]: 2.0
Date Installed : 1998-6-30
Calibration Interval : Every 2 years
Date Removed : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
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13. Local Ties, Eccentricities, and Collocation Information
13.01 Collocated Permanent Geodetic Systems
GPS : IGS
Date Installed : 1995-09-20
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
GLONASS : NO
Date Installed : (yyyy-mm-dd)
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
DORIS : NO
Date Installed : (yyyy-mm-dd)
Date Removed : (yyyy-mm-dd)
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 : ABSOLUTE
Date Installed : (yyyy-mm-dd)
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
13.02.01 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : BJFS
Instrumentation Type : GPS
Instrumentation Status : PERMANENT
DOMES Number : 21601M001
CDP Number : s091
Differential Components (ITRS)
dx [m]: -16.4204
dy [m]: 118.3831
dz [m]: -146.2859
Date Measured : 1997-01-21
Determined by :The Chinese Academy of Surveying and Mapping
Date Installed : 1995-09-15
Date Removed : (yyyy-mm-dd)
Additional Information : the dx,dy,and dz are the value of SLR-GPS.the GPS coordinates are
-2148743.808,4426641.281and 4044655.993
(ITRF94) respectively x,y,and z components.
13.03.01 Eccentricities Between Other Monuments on Site
From: Monument Name :
DOMES Number : (XXXXXXXXX)
CDP Number : (XXXX)
To: Monument Name :
DOMES Number : (XXXXXXXXX)
CDP Number : (XXXX)
Differential Components (ITRS)
dx [m]: (m +- m)
dy [m]: (m +- m)
dz [m]: (m +- m)
Date Measured : (yyyy-mm-dd)
Determined by :
Additional Information : (multiple lines)
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14. Local Events Possibly Affecting Computed Position
14.xx Date : (yyyy-mm-dd hh:mm UT)
Event : (EARTHQUAKE/CONSTRUCTION/etc)
Additional Information : (multiple lines)
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15. On-Site, Point of Contact Agency Information
Agency : Chinese Academy of Surveying and mapping
Mailing Address : 16 Beitaiping Road
100039 Beijing,China
Primary Contact
Contact Name : Qu Feng
Telephone (primary) : 010-88217725
Telephone (secondary) : 010-61311374
Fax : 010-68218654
E-mail : qufeng@casm.ac.cn
Secondary Contact
Contact Name : Wang Tanqiang
Telephone (primary) : 010-88217725
Telephone (secondary) : 010-61311374
Fax : 010-68218654
E-mail : wangtq@casm.ac.cn
Additional Information : (multiple lines)
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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 : N.A.
Hardcopy on File
Site Map : NO
Site Diagram : NO
Horizon Mask : NO
Monument Description : NO
Site Pictures : NO
Additional Information : (multiple lines)
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