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)
Kashima: 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) : Hiroo Kunimori
Preparer E-mail : kuni@crl.go.jp
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 : Kashima
IERS DOMES Number : 21701M002
CDP Pad ID : 7335
Subnetwork : WPLTN
Description : MONUMENT
Monument Description : PILLAR
Monument Inscription : Kashima_SLR-S2
Mark Description : Cross on Rotary sheet type reflective mirror
Date Installed : 1998-01-01
Date Removed :
Geologic Characteristic : N/A
Additional Information : http://www2.crl.go.jp/t/team6/survey/2/09/
: kashima-1.pdf
Back to top
2. Site Location Information
City or Town : Kashima
State or Province : Ibaraki
Country : Japan
Tectonic Plate : North American
Local Time (UTC +/- hours) :
Approximate Position
X coordinate [m]: -3997483.510
Y coordinate [m]: 3276844.209
Z coordinate [m]: 3724307.332
Latitude [deg]: 35.9561 N
Longitude [deg]: 140.6575 E
Elevation [m]: 66.5
Survey Method :
Date Measured :
Additional Information :
Back to top
3. General System Information
3.01 System Name : Kashima
4-Character Code : KASL
CDP System Number : 72
CDP Occupation Number : 01
Eccentricity to SRP (if Not Identical With SRP)
North [m]: 10.0190 +- 0.002
East [m]: 1.5323 +- 0.002
Up [m]: 4.4429 +- 0.002
Date Measured : 1999-10-19
Date Installed : 1997-04-01
Date Removed : 2001-02-01
Additional Information :
Back to top
4. Telescope Information
4.01 Receiving Telescope Type : Coude
Aperture [m]: 0.75
Mount : AZ-EL
Date Installed :
Date Removed :
Xmitting Telescope Type : Coude
Aperture [m]: 0.75
Date Installed :
Date Removed :
Tracking Camera Type : CCD
Model : ST4
Manufacturer : SBIG/EOS
Field of View [deg]: 0.0167
Minimum Magnitude [mag]: 10
Date Installed :
Date Removed :
Transmit/Receive Path : COMMON COUDE
Transmit/Receive Switch : POLARIZER
Max Slew Rate Az [deg/s]: 12
Max Slew Rate El [deg/s]: 12
Max Used Tracking Rate Az : 5
Max Used Tracking Rate El : 5
Telescope Shelter : SEALED DOME
Daylight Filter Type : SPECTRAL FILTER
Dayl. Filt. Bandwidth [nm]: 0.3
Adjustable Attenuation : Both
Adjustable Field of View :
Transmit Efficiency : 0.24
Receive Efficiency : 0.06
Date Installed : 1997-04-01
Date Removed : 2001-02-01
Additional Information : Minimum Magnitude: ~10
: Transmit/Receive Switch: SHG Crystal;
: SUBSTITUTED "POLARIZER"
: -- is this correct?? rlr 07/12/19
Back to top
5. Laser System Information
5.01 Laser Type : ND:YAG
Model :
Manufacturer :
Number of Amplifiers : 2
Primary Wavelength [nm]: 1064
Primary Maximum Energy [mJ]: N.A.
Secondary Wavelength [nm]: 532
Secondary Max. Energy [mJ]: 50
Xmit Energy Adjustable : YES
Additional Information :
Pulse Width (FWHM) [ps]: 35
Max. Repetition Rate [Hz]: 20
Fullw. Beam Divergence ["]: 10
Theoretical Beam Div :
Measured Beam Div :
Method Used :
Additional Information :
Final Beam Diameter [m]: 0.75
Eyesafe : NO
Eyesafe Standard : JIS C6802
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 : 1997-04-01
Date Removed : 2001-02-01
Additional Information : Primary Maximum Energy:
: not used for laser ranging
Back to top
6. Receiver System
6.01.01 Primary Chain
Wavelength [nm]: 532
Detector Type : CSPAD
Manufacturer : PESO Consulting
Model : KSP
Quantum Efficiency [%]: 15
Nominal Gain :
Rise Time [ps]:
Jitter (Single PE)[ps]: 20
Field of View Diam ["]: 40
Date Installed : 1997-04-01
Date Removed :
Amplifier Type :
Manufacturer :
Model :
Gain :
Bandwidth :
Date Installed :
Date Removed :
Additional Information:
Signal Processing : Time Walk Compensated
Manufacturer : Graz
Model :
Date Installed : 1997-04-01
Date Removed :
Amplitude Measurement : YES
Return-Rate Controlled: NO
Mode of Operation : Single to Multi Photns
Additional Information:
Time of Flight Observ. : EVENT
Manufacturer : EOS
Model : MRCS KSP
Resolution [ps]:
Precision [ps]: 15
Date Installed : 1997-04-01
Date Removed :
Additional Information : Jitter: <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) : YES
Low Altitude (400-2000) : YES
LAGEOS/LARES : YES
GLONASS : YES
Etalon : YES
GNSS : NIGHT
Geosynchronous :
Moon : NO
Ave. Pass Switch Time [s]: 60
Average values for LAGEOS
Single Shot RMS [mm]: 15
# of Obs per NP : 150
Use of Semi-trains : NO
# of Semi-train Tracks : N.A.
Range Gate Width [ns]: 200 - 10000
Beam Pointing Accuracy ["]: 5
Angle Encoder Resolution["]: 0.3
Min. Tracking Elev. [deg]: 20
Laser Polarization @emitter:
Operation
Months per Year : 10
Days per Week : 5
Hours per Day : 8
Staff per Shift : 0
System Shared With : R&D
Time Allocated to SLR [%]:
Remotely Controllable : YES
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 : 1998-02-16 HH:MM UT
Date Last Applicable :
Additional Information : Can not be remotely controlled
: for general safety
: Staff per shift: MOSTLY NONE
Back to top
8. Calibration
8.01 Calibration Type : PRE+POST
Target Location : EXTERNAL
Target Type : CORNER CUBE
Target Structure : METAL POLE
Number of Targets :
Target Distance(s) [m]: 10
Date Measured : 1997-07-01
Accuracy [mm]: 1.0
Verification : 1998-07-01
Return-Rate Controlled : YES
Eye-Safe Method :
Additional Information :
Mode of Operation : SINGLE/MULTI PHOTON
Calibration performed : 5
Single Shot RMS [mm]: 8
Edit Criterion 1st Chain : ITERATIVE 2.5 SIGMA
Edit Criterion 2nd Chain : N.A.
Application of Cal Data : LINEAR FIT
Date Installed : 1998-01-01
Date Removed :
Additional Information :
Back to top
9. Time and Frequency Standards
9.01.01 Frequency Standard Type : Oven Controlled Crystal Oscillator
Model : XL-DC 151-602-254
Manufacturer : TrueTime
Short Term Stab. [e-12]: 100
Long Term Stab. [e-12]: 1
Time Reference : GPS
Synchronization : GPS
Epoch Accuracy [ns]: 100
Date Installed : 1997-04-01
Date Removed :
Additional Information : uses 10MHz from GPS receiver
9.02.01 GNSS Timing Rcvr Model : XL-DC 151-602-254
Manufacturer : TrueTime
Date Installed : 1997-04-01
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 : IRV+POLYNOMIAL
Return-Rate Rejection :
Edit Criterion 1st Chain : MANUAL, ITERATIVE 2.5 SIGMA
Edit Criterion 2nd Chain : N.A.
Upload interval : DAILY
Date First Applicable : 1998-02-16 HH:MM UT
Date Last Applicable :
Additional Information :
Back to top
11. Aircraft Detection
11.01 Detection Type : EYESAFE LASER and MOUNT OBSERVER
Manufacturer/Provider :
Automatic Laser Shutoff :
Alarms Recorded :
Hazard Distance [km]:
Date Installed : 1998-12-01
Date Removed :
Additional Information :
Back to top
12. Meteorological Instrumentation
12.01.01 Pressure Sensor Model : RPT301A
Manufacturer : Nippon Electric Instruments
Recording Interval : PER PASS
Accuracy [mbar]: 0.3
Height Diff to SRP [m]: 0.1
Distance from SRP [m]:
Date Installed : 1997-04-01 HH:MM UT
Calibration Interval : YEARLY
Date Removed :
Additional Information : Three sensors to check each other
12.02.01 Temp Sensor Model : 101+N59
Manufacturer : Nippon Electric Instruments
Recording Interval : PER PASS
Accuracy [deg C]: 0.1
Date Installed : 1997-04-01 HH:MM UT
Calibration Interval : YEARLY
Date Removed :
Additional Information : Two sensors to check each other
12.03.01 Humidity Sensor Model : 35D+N59CV
Manufacturer : Nippon Electric Instruments
Recording Interval : PER PASS
Accuracy [% rel h]: 2
Date Installed : 1997-04-01 HH:MM UT
Calibration Interval : YEARLY
Date Removed :
Additional Information : Two sensors to check each other
Back to top
13. Local Ties, Eccentricities, and Collocation Information
13.01 Collocated Permanent Geodetic Systems
13.01.01.01 GNSS : IGS+GSI+CRL
Date Installed : 1997-07-01
Date Removed :
Additional Info :
13.01.01.02 GNSS : NO
Date Installed :
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 : IVS
Date Installed : 1994-08-01
Date Removed :
Additional Info : VLBI GSI 26m installed 1968-10-01
: VLBI CRL 34m installed 1988-03-01
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 : VLBI-CP0
Instrumentation Type : VLBI
Instrumentation Status : PERMANENT
DOMES Number : 21701S006
CDP Number : 7334
Differential Components (ITRS)
dx [m]: -21.3305 +- 0.002
dy [m]: 31.5288 +- 0.002
dz [m]: -55.9056 +- 0.002
Date Measured : 1999-10-19
Determined by : Kokusai Kogyo Co Ltd
Date Installed : 1994-10-01
Date Removed :
Additional Information : CRL Keystone 11 m antenna
13.02.02.01 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : SLR-PGPS
Instrumentation Type : GPS
Instrumentation Status : PERMANENT
DOMES Number : 21701S007
CDP Number : N.A.
Differential Components (ITRS)
dx [m]: -41.0380 +- 0.002
dy [m]: 24.0384 +- 0.002
dz [m]: -78.0146 +- 0.002
Date Measured : 1999-10-19
Determined by : Kokusai Kogyo Co Ltd
Date Installed : 1994-10-01
Date Removed :
Additional Information : Ashtech Z-XII with GEODETIC L1/L2
: CDP Number: Not assigned
13.02.03.01 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : 34m-CP0
Instrumentation Type : VLBI
Instrumentation Status : PERMANENT
DOMES Number : 21701S004
CDP Number : 1857
Differential Components (ITRS)
dx [m]: -164.9098 +- 0.002
dy [m]: -156.0982 +- 0.002
dz [m]: -17.7825 +- 0.002
Date Measured : 1999-10-19
Determined by : Kokusai Kogyo Co Ltd
Date Installed : 1988-03-01
Date Removed :
Additional Information : CRL 34 m antenna
13.02.04.01 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : 26m-CP0
Instrumentation Type : VLBI
Instrumentation Status : PERMANENT
DOMES Number : 21701S001
CDP Number : 1856
Differential Components (ITRS)
dx [m]: -407.9285 +- 0.002
dy [m]: -265.5923 +- 0.002
dz [m]: -178.3909 +- 0.002
Date Measured : 1999-10-19
Determined by : Kokusai Kogyo Co Ltd
Date Installed : 1968-10-01
Date Removed :
Additional Information : GSI 26 m antenna
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 : Communications Research Lab.
Mailing Address : 4-2-1, Nukui-kita, Koganei,
: 184-8795 Japan
Website :
Primary Contact
Contact Name : Hiroo Kunimori
Telephone (primary) : +81 423-27-7559
Telephone (secondary) :
Fax : +81 423-27-6077
E-mail : kuni@crl.go.jp
Secondary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
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://ksp.crl.go.jp/
Hardcopy on File
Site Map : NO
Site Diagram : NO
Horizon Mask : NO
Monument Description : NO
Site Pictures : NO
Additional Information : (multiple lines)
Back to top
- NASA Official: Frank Lemoine
- Web Curator: Lori J. Tyahla
- Contact Us
- Last modified date: Nov 5, 2024
- Privacy Policy & Important Notices
