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Daedeok: 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) : Hyung-Chul Lim
Preparer E-mail : hclim@kasi.re.kr
Date Prepared : 2012-10-22
Report Type : NEW
Site Log Format Version : 2.0
Site Log Revision :
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1. Identification of the Ranging System Reference Point (SRP)
Site Name : Daedeok
IERS DOMES Number : 23902S002
CDP Pad ID : 7359
Subnetwork : WPLTN
Description : AZ EL INTERSECT
Monument Description : N.A.
Monument Inscription : N.A.
Mark Description : N.A.
Date Installed : 2012-09-26
Date Removed :
Geologic Characteristic : etc
Additional Information : The site is located in the KASI headquarter.
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2. Site Location Information
City or Town : Daedeok
State or Province : Daejeon
Country : Republic of Korea
Tectonic Plate : Eurasian
Local Time (UTC +/- hours) :
Approximate Position
X coordinate [m]: -3120073.0671
Y coordinate [m]: 4084621.9392
Z coordinate [m]: 3763990.7446
Latitude [deg]: 36.3990 N
Longitude [deg]: 127.3747 E
Elevation [m]: 116.6
Survey Method :
Date Measured :
Additional Information :
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3. General System Information
3.01 System Name : Daedeok
4-Character Code : DAEK
CDP System Number : 26
CDP Occupation Number : 01
Eccentricity to SRP (if Not Identical With SRP)
North [m]:
East [m]:
Up [m]:
Date Measured : N.A.
Date Installed : 2012-09-26
Date Removed :
Additional Information :
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4. Telescope Information
4.01 Receiving Telescope Type : CASSEGRAIN
Aperture [m]: 0.4
Mount : AZ-EL
Date Installed :
Date Removed :
Xmitting Telescope Type : REFRACTOR
Aperture [m]: 0.1
Date Installed :
Date Removed :
Tracking Camera Type :
Model :
Manufacturer :
Field of View [deg]:
Minimum Magnitude [mag]:
Date Installed :
Date Removed :
Transmit/Receive Path : SEPARATE
Transmit/Receive Switch : NONE
Max Slew Rate Az [deg/s]: 20
Max Slew Rate El [deg/s]: 20
Max Used Tracking Rate Az : 20
Max Used Tracking Rate El : 20
Telescope Shelter : DOME
Daylight Filter Type : SPECTRAL FILTER, No Oven Control
Dayl. Filt. Bandwidth [nm]: 0.27
Adjustable Attenuation : NO
Adjustable Field of View :
Transmit Efficiency : 92.3
Receive Efficiency : 0.65
Date Installed : 2012-09-26
Date Removed : 2014-11-19
Additional Information : receive effic:64.9 for Nighttime and
: 27.9 for Daytime
4.02 Receiving Telescope Type : CASSEGRAIN
Aperture [m]: 0.4
Mount : AZ-EL
Date Installed :
Date Removed :
Xmitting Telescope Type : REFRACTOR
Aperture [m]: 0.1
Date Installed :
Date Removed :
Tracking Camera Type :
Model :
Manufacturer :
Field of View [deg]:
Minimum Magnitude [mag]:
Date Installed :
Date Removed :
Transmit/Receive Path : SEPARATE
Transmit/Receive Switch : NONE
Max Slew Rate Az [deg/s]: 20
Max Slew Rate El [deg/s]: 20
Max Used Tracking Rate Az : 20
Max Used Tracking Rate El : 20
Telescope Shelter : DOME
Daylight Filter Type : SPECTRAL FILTER, Oven Control
Dayl. Filt. Bandwidth [nm]: 0.25
Adjustable Attenuation : NO
Adjustable Field of View :
Transmit Efficiency : 92.3
Receive Efficiency : 0.65
Date Installed : 2015-01-05
Date Removed :
Additional Information : Receive efficiency 64.9 for Nighttime and
: 34.4 for Daytime
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5. Laser System Information
5.01 Laser Type : ND:YAG
Model :
Manufacturer :
Number of Amplifiers : 2
Primary Wavelength [nm]: 1064
Primary Maximum Energy [mJ]:
Secondary Wavelength [nm]: 532
Secondary Max. Energy [mJ]: 2.5
Xmit Energy Adjustable : NO
Additional Information :
Pulse Width (FWHM) [ps]: 50
Max. Repetition Rate [Hz]: 5000
Fullw. Beam Divergence ["]: 5 - 200
Theoretical Beam Div :
Measured Beam Div :
Method Used :
Additional Information :
Final Beam Diameter [m]: 0.08
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 : 2012-09-26
Date Removed :
Additional Information :
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6. Receiver System
6.01.01 Primary Chain
Wavelength [nm]: 532
Detector Type : CSPAD
Manufacturer : PESO Consulting
Model : N.A.
Quantum Efficiency [%]: 20
Nominal Gain : N.A.
Rise Time [ps]: 100
Jitter (Single PE)[ps]: 20
Field of View Diam ["]:
Date Installed : 2012-09-26
Date Removed :
Amplifier Type :
Manufacturer :
Model :
Gain :
Bandwidth :
Date Installed :
Date Removed :
Additional Information:
Signal Processing : Time Walk Compensated
Manufacturer : Graz
Model : N.A.
Date Installed :
Date Removed :
Amplitude Measurement : NO
Return-Rate Controlled: NO
Mode of Operation : SINGLE to FEW PHOTON
Additional Information:
Time of Flight Observ. : EVENT
Manufacturer : Inst. of Electr. and Computer Science, Riga
Model : A033-ET
Resolution [ps]: 1
Precision [ps]: 4
Date Installed : 2012-09-26
Date Removed :
Additional Information : Rise time: 100-2000
: Precision: < 4
6.01.02 Primary Chain
Wavelength [nm]: 532
Detector Type : CSPAD
Manufacturer : PESO Consulting
Model : N.A.
Quantum Efficiency [%]: 20
Nominal Gain : N.A.
Rise Time [ps]: 100
Jitter (Single PE)[ps]: 20
Field of View Diam ["]: 50 - 95
Date Installed : 2015-01-05
Date Removed :
Amplifier Type :
Manufacturer :
Model :
Gain :
Bandwidth :
Date Installed :
Date Removed :
Additional Information:
Signal Processing : Time Walk Compensated
Manufacturer : Graz
Model : N.A.
Date Installed :
Date Removed :
Amplitude Measurement : NO
Return-Rate Controlled: NO
Mode of Operation : SINGLE to FEW PHOTON
Additional Information:
Time of Flight Observ. : EVENT
Manufacturer : Inst. of Electr. and Computer Science, Riga
Model : A033-ET
Resolution [ps]: 1
Precision [ps]: 4
Date Installed : 2012-09-26
Date Removed :
Additional Information : Rise time: 100-2000
: Precision < 4
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 :
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7. Tracking Capabilities
7.01 Satellites
Very Low Alt (<400 km) : YES
Low Altitude (400-2000) : YES
LAGEOS/LARES : YES
GLONASS : NIGHT
Etalon : NIGHT
GNSS : NIGHT
Geosynchronous :
Moon : NO
Ave. Pass Switch Time [s]: 30
Average values for LAGEOS
Single Shot RMS [mm]: 15
# of Obs per NP : 300
Use of Semi-trains : NO
# of Semi-train Tracks : N.A.
Range Gate Width [ns]: 100 - 6000
Beam Pointing Accuracy ["]: 5
Angle Encoder Resolution["]: 0.02
Min. Tracking Elev. [deg]: 20
Laser Polarization @emitter:
Operation
Months per Year : 12
Days per Week : 5
Hours per Day : 24
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 :
Date Last Applicable :
Additional Information : Beam Pointing Accuracy: <5
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8. Calibration
8.01 Calibration Type : PRE+POST
Target Location : EXTERNAL WITHIN DOME
Target Type : Prism and Diffuser
Target Structure : METAL POLE
Number of Targets :
Target Distance(s) [m]: 1.07
Date Measured : 2012-09-26
Accuracy [mm]: 0.5
Verification :
Return-Rate Controlled : YES
Eye-Safe Method :
Additional Information :
Mode of Operation : FEW PHOTON
Calibration performed : 60
Single Shot RMS [mm]: 4.5
Edit Criterion 1st Chain : ITERATIVE 2.2 SIGMA
Edit Criterion 2nd Chain : N.A.
Application of Cal Data : LINEAR FIT
Date Installed : 2012-09-26
Date Removed :
Additional Information : Target consists of a prism and a diffuser
: to reduce the beam strength
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9. Time and Frequency Standards
9.01.01 Frequency Standard Type : RUBIDIUM
Model : XLi
Manufacturer : SYMMETRICOM
Short Term Stab. [e-12]: 6
Long Term Stab. [e-12]: 1
Time Reference : GPS
Synchronization : GPS
Epoch Accuracy [ns]: 30
Date Installed : 2012-09-26
Date Removed :
Additional Information :
9.02.01 GNSS Timing Rcvr Model : XLI
Manufacturer : SYMMETRICOM
Date Installed : 2012-09-26
Date Removed :
Additional Information :
9.03.01 One-way System Calibration
Date performed :
Direction Calibrated :
Additional Information :
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10. Preprocessing Information
10.01 On-site NP Generation : YES
Data Screening : IRV+POLYNOMIAL
Return-Rate Rejection :
Edit Criterion 1st Chain : ITERATIVE 2.2 SIGMA
Edit Criterion 2nd Chain : NONE
Upload interval : DAILY
Date First Applicable : 2012-10-12 10:00 UT
Date Last Applicable :
Additional Information :
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11. Aircraft Detection
11.01 Detection Type : RADAR
Manufacturer/Provider :
Automatic Laser Shutoff :
Alarms Recorded :
Hazard Distance [km]:
Date Installed : 2012-09-26
Date Removed :
Additional Information :
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12. Meteorological Instrumentation
12.01.01 Pressure Sensor Model : WXT520
Manufacturer : VAISALA
Recording Interval : EVERY MINUTE
Accuracy [mbar]: 0.5
Height Diff to SRP [m]: 0.2
Distance from SRP [m]:
Date Installed : 2012-09-26 00:00 UT
Calibration Interval : TWO YEARLY
Date Removed :
Additional Information :
12.02.01 Temp Sensor Model : WXT520
Manufacturer : VAISALA
Recording Interval : EVERY MINUTE
Accuracy [deg C]: 0.3
Date Installed : 2012-09-26 00:00 UT
Calibration Interval : TWO YEARLY
Date Removed :
Additional Information :
12.03.01 Humidity Sensor Model : WXT520
Manufacturer : VAISALA
Recording Interval : EVERY MINUTE
Accuracy [% rel h]: 3
Date Installed : 2012-09-26 00:00 UT
Calibration Interval : TWO YEARLY
Date Removed :
Additional Information :
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13. Local Ties, Eccentricities, and Collocation Information
13.01 Collocated Permanent Geodetic Systems
13.01.01.01 GNSS : IGS
Date Installed : 1999-03-19
Date Removed :
Additional Info :
13.01.01.02 GNSS :
Date Installed :
Date Removed :
Additional Info :
13.01.02.01 DORIS :
Date Installed :
Date Removed :
Additional Info :
13.01.03.01 PRARE :
Date Installed :
Date Removed :
Additional Info :
13.01.04.01 VLBI :
Date Installed :
Date Removed :
Additional Info :
13.01.05.01 Gravimeter :
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 : DAEJ
Instrumentation Type : GPS/GLONASS
Instrumentation Status : PERMANENT
DOMES Number : 23902M002
CDP Number :
Differential Components (ITRS)
dx [m]: -32.130 +- 0.001
dy [m]: 7.613 +- 0.001
dz [m]: -35.472 +- 0.001
Date Measured :
Determined by : KASI
Date Installed : 1999-03-19
Date Removed :
Additional Information :
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 :
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14. Local Events Possibly Affecting Computed Position
14.01 Date :
Event :
Additional Information :
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15. On-Site, Point of Contact Agency Information
Agency : Korea Astronomy and Space Science Institute
Mailing Address : 776 Daedeok-Daero Yuseong-gu Daejeon
: 305-348 Republic of Korea
Website :
Primary Contact
Contact Name : Hyung-Chul Lim
Telephone (primary) : +82-42-865-3235
Telephone (secondary) :
Fax : +82-42-861-5610
E-mail : hclim@kasi.re.kr
Secondary Contact
Contact Name : Eunjung Choi
Telephone (primary) : +82-42-865-3231
Telephone (secondary) :
Fax : +82-42-861-5610
E-mail : eunjung@kasi.re.kr
Tertiary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
Additional Information :
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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 :
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17. More Information
URL for More Information : http://www.kasi.re.kr
Hardcopy on File
Site Map : NO
Site Diagram : NO
Horizon Mask : NO
Monument Description : NO
Site Pictures : NO
Additional Information :
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