Quick Links
- Network Map
- List of Stations
- Monthly Report Card
- Quarterly Report Card
- Network Status Page
- Potsdam CPF time bias service
- Procedure for estimating laser beam divergence
- Recent Station Upgrades
- Network station application form
- Revised ILRS station screening process at ILRS Operations Centers (NASA and EDC)
Shanghai: 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. 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) : Yang Fumin
Preparer E-mail : yangfm@center.shao.ac.cn
Date Prepared : 2002-05-09
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 : Shanghai
IERS DOMES Number : 21605S001
CDP Pad ID : 7837
Subnetwork : WPLTN
Description : AZ EL INTERSECT
Monument Description : N.A.
Monument Inscription : N.A.
Mark Description : N.A.
Date Installed : 1983-03-19
Date Removed :
Geologic Characteristic : SANDSTONES
Additional Information : The site is located in southwest
: Shanghai, 30 km away from town.
: SRP is center of 45 deg bending
: mirror.
Back to top
2. Site Location Information
City or Town : Shanghai
State or Province : Shanghai
Country : P.R. Chinese
Tectonic Plate : Eurasian
Local Time (UTC +/- hours) :
Approximate Position
X coordinate [m]: -2831088.101
Y coordinate [m]: 4676203.354
Z coordinate [m]: 3275172.810
Latitude [deg]: 31.0975 N
Longitude [deg]: 121.1917 E
Elevation [m]: 29.023
Survey Method :
Date Measured :
Additional Information : The site is located by the
: Sheshan hill
Back to top
3. General System Information
3.01 System Name : Shanghai
4-Character Code : SHAL
CDP System Number : 28
CDP Occupation Number : 05
Eccentricity to SRP (if Not Identical With SRP)
North [m]:
East [m]:
Up [m]:
Date Measured : N.A.
Date Installed : 1983-03-19
Date Removed :
Additional Information :
Back to top
4. Telescope Information
4.01 Receiving Telescope Type : CASSEGRAIN
Aperture [m]: 0.6
Mount : AZ-EL
Date Installed :
Date Removed :
Xmitting Telescope Type : REFRACTOR
Aperture [m]: 0.15
Date Installed :
Date Removed :
Tracking Camera Type : ICCD
Model :
Manufacturer : China
Field of View [deg]: 0.3
Minimum Magnitude [mag]: 13
Date Installed :
Date Removed :
Transmit/Receive Path : SEPARATE
Transmit/Receive Switch : NONE
Max Slew Rate Az [deg/s]: 5
Max Slew Rate El [deg/s]: 1
Max Used Tracking Rate Az : 5
Max Used Tracking Rate El : 1
Telescope Shelter : DOME
Daylight Filter Type : Oven controlled spectral filter
Dayl. Filt. Bandwidth [nm]: 0.3
Adjustable Attenuation : NO
Adjustable Field of View :
Transmit Efficiency : 0.60
Receive Efficiency : 0.51
Date Installed : 1983-03-19
Date Removed :
Additional Information : The filter is used in daylight tracking only
: Receive Efficiency:
: 0.51,0.1(3nm filter included)
Back to top
5. Laser System Information
5.01 Laser Type : ND:YAG
Model :
Manufacturer :
Number of Amplifiers : 1
Primary Wavelength [nm]: 1064
Primary Maximum Energy [mJ]: N.A.
Secondary Wavelength [nm]: 532
Secondary Max. Energy [mJ]: 40
Xmit Energy Adjustable : NO
Additional Information :
Pulse Width (FWHM) [ps]: 50
Max. Repetition Rate [Hz]: 8
Fullw. Beam Divergence ["]: 20
Theoretical Beam Div :
Measured Beam Div :
Method Used :
Additional Information :
Final Beam Diameter [m]: 0.12
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 : 1995-10-01
Date Removed :
Additional Information : SFUR Passively Mode-locked laser
: Primary Maximum Energy:
: Not used for laser ranging
: Pulse Width (FWHM): 50 ~ 100
Back to top
6. Receiver System
6.01.01 Primary Chain
Wavelength [nm]: 532
Detector Type : CSPAD
Manufacturer : PESO Consulting
Model : 0402
Quantum Efficiency [%]: 20
Nominal Gain :
Rise Time [ps]:
Jitter (Single PE)[ps]: 30
Field of View Diam ["]: 80
Date Installed : 1998-03-19
Date Removed :
Amplifier Type :
Manufacturer :
Model :
Gain :
Bandwidth :
Date Installed :
Date Removed :
Additional Information:
Signal Processing : Time Walk Compensated
Manufacturer : Graz
Model : 1998-03-19
Date Installed :
Date Removed :
Amplitude Measurement : NO
Return-Rate Controlled: NO
Mode of Operation : Single to Multi Photon
Additional Information:
Time of Flight Observ. : INTERVAL
Manufacturer : Hewlett-Packard
Model : 5370B
Resolution [ps]: 20
Precision [ps]: 35
Date Installed : 1990-04-01
Date Removed :
Additional Information : Quantum Efficiency: ~20
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 :
Back to top
7. Tracking Capabilities
7.01 Satellites
Very Low Alt (<400 km) : NIGHT
Low Altitude (400-2000) : YES
LAGEOS/LARES : YES
GLONASS : YES
Etalon : NIGHT
GNSS : NIGHT
Geosynchronous :
Moon : NO
Ave. Pass Switch Time [s]: ~20
Average values for LAGEOS
Single Shot RMS [mm]: 16
# of Obs per NP : 40
Use of Semi-trains : YES
# of Semi-train Tracks : 3-4
Range Gate Width [ns]: 100 - 30000
Beam Pointing Accuracy ["]: 5
Angle Encoder Resolution["]: 1
Min. Tracking Elev. [deg]: 15
Laser Polarization @emitter:
Operation
Months per Year : 12
Days per Week : 7
Hours per Day : 12 - 24
Staff per Shift : 1
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 : 1983-11-07 HH:MM UT
Date Last Applicable :
Additional Information : Minimum Tracking Elevation
: In north and west is 25 deg.
Back to top
8. Calibration
8.01 Calibration Type : PRE+POST
Target Location : EXTERNAL WITHIN DOME
Target Type : see additional information
Target Structure : Short CALIBR TARGET,
: see additional information
Number of Targets :
Target Distance(s) [m]: 2.0
Date Measured : 2000-06-20
Accuracy [mm]: 1
Verification :
Return-Rate Controlled :
Eye-Safe Method :
Additional Information :
Mode of Operation :
Calibration performed : 120 or more
Single Shot RMS [mm]: 8
Edit Criterion 1st Chain : ITERATIVE 2.5 SIGMA
Edit Criterion 2nd Chain : N.A.
Application of Cal Data :
Date Installed : 2000-06-20
Date Removed :
Additional Information : Target is made of a prism and a diffusor
: to direct the beam into receiver.
Back to top
9. Time and Frequency Standards
9.01.01 Frequency Standard Type : Oven Controlled Crystal Oscillator
Model : 58503A
Manufacturer : HP
Short Term Stab. [e-12]: 5
Long Term Stab. [e-12]: 1
Time Reference : GPS
Synchronization : GPS
Epoch Accuracy [ns]: 110
Date Installed : 1997-10-01
Date Removed :
Additional Information :
9.02.01 GNSS Timing Rcvr Model : 58503A
Manufacturer : HP
Date Installed : 1997-10-01
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 : Polyfit fit + orbit solve
Return-Rate Rejection :
Edit Criterion 1st Chain : 2.5 SIGMA
Edit Criterion 2nd Chain : N.A.
Upload interval : No
Date First Applicable : 1983-11-07 HH:MM UT
Date Last Applicable :
Additional Information :
Back to top
11. Aircraft Detection
11.01 Detection Type : NONE
Manufacturer/Provider :
Automatic Laser Shutoff :
Alarms Recorded :
Hazard Distance [km]:
Date Installed :
Date Removed :
Additional Information : No limit to laser transmit in the area of
: the station, because there are few aircraft
: and the transmitted laser energy is low.
Back to top
12. Meteorological Instrumentation
12.01.01 Pressure Sensor Model :
Manufacturer : China
Recording Interval : PER PASS
Accuracy [mbar]: 0.3
Height Diff to SRP [m]: 2
Distance from SRP [m]:
Date Installed : 1999-09-01 HH:MM UT
Calibration Interval : EVERY FEW YEARS
Date Removed :
Additional Information : Pressures compared with
: local Met Office barometers
12.02.01 Temp Sensor Model :
Manufacturer : China
Recording Interval : PER PASS
Accuracy [deg C]: 0.3
Date Installed : 1990-04-01 HH:MM UT
Calibration Interval : EVERY FEW YEARS
Date Removed :
Additional Information : Temperatures compared with local Met
: office readings
12.03.01 Humidity Sensor Model :
Manufacturer : China
Recording Interval : PER PASS
Accuracy [% rel h]: 3
Date Installed : 1990-04-01 HH:MM UT
Calibration Interval : EVERY FEW YEARS
Date Removed :
Additional Information : Humidity compared with local Met
: office readings
Back to top
13. Local Ties, Eccentricities, and Collocation Information
13.01 Collocated Permanent Geodetic Systems
13.01.01.01 GNSS : IGS
Date Installed : 1995-01-25
Date Removed :
Additional Info :
13.01.02.01 DORIS : NO
Date Installed :
Date Removed :
Additional Info :
13.01.03.01 PRARE : YES
Date Installed : 1996-05-03
Date Removed : 1998-12-01
Additional Info :
13.01.04.01 VLBI : YES
Date Installed : 1987-11-01
Date Removed :
Additional Info :
13.01.05.01 Gravimeter : NO
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 : None
Instrumentation Type : VLBI
Instrumentation Status : PERMANENT
DOMES Number : 21605S009
CDP Number : 7227
Differential Components (ITRS)
dx [m]: -598.854 +- 0
dy [m]: -469.637 +- 0
dz [m]: 154.972 +- 0
Date Measured : 1992-MM-DD
Determined by : Shanghai Obs.
Date Installed :
Date Removed :
Additional Information :
13.02.02.01 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : JPL 4027-S
Instrumentation Type : GPS
Instrumentation Status : PERMANENT
DOMES Number : 21605M002
CDP Number : N.A.
Differential Components (ITRS)
dx [m]: -645.121 +- 0
dy [m]: -537.348 +- 0
dz [m]: 196.639 +- 0
Date Measured : 1997-01-01
Determined by : Shanghai Obs.
Date Installed : 1994-10-01
Date Removed :
Additional Information : The previous site log had the wrong
: signs for Dx, Dy, Dz.
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 :
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 : Shanghai Astronomical Observatory,
: The Chinese Academy of Sciences
Mailing Address : Shanghai Observatory
: 80 Nandan Rd,Shanghai 200030
: China
Website :
Primary Contact
Contact Name : Yang Fumin
Telephone (primary) : +86-021-64696290
Telephone (secondary) :
Fax : +86-021-64384618
E-mail : yangfm@center.shao.ac.cn
Secondary Contact
Contact Name : Zhang Zhongping
Telephone (primary) : +86 -021-64386191
Telephone (secondary) :
Fax : +86-021-64384618
E-mail : zzp@center.shao.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 : http:/center.shao.ac.cn/
Hardcopy on File
Site Map : NO
Site Diagram : NO
Horizon Mask : NO
Monument Description : NO
Site Pictures : NO
Additional Information :
Back to top
- NASA Official: Frank Lemoine
- Web Curator: Lori J. Tyahla
- Contact Us
- Last modified date: Nov 25, 2024
- Privacy Policy & Important Notices
