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Greenbelt (TLRS-4): 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) : Carey Noll
Preparer E-mail : Carey.Noll@nasa.gov
Date Prepared : 2005-11-28
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 : GGAO (TLRS-4)
IERS DOMES Number : 40451M116
CDP Pad ID : 7130
Subnetwork : NASA
Description : MONUMENT
Monument Description : STANDARD NASA DISK
Monument Inscription :
Mark Description :
Date Installed : 2005-01-01
Date Removed :
Geologic Characteristic :
Additional Information :
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2. Site Location Information
City or Town : Greenbelt
State or Province : MD
Country : USA
Tectonic Plate : North American
Local Time (UTC +/- hours) :
Approximate Position
X coordinate [m]:
Y coordinate [m]:
Z coordinate [m]:
Latitude [deg]: 39.0209 N
Longitude [deg]: 76.8275 W
Elevation [m]:
Survey Method :
Date Measured :
Additional Information :
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3. General System Information
3.01 System Name : TLRS-4
4-Character Code : GO4F
CDP System Number : 14
CDP Occupation Number : 03
Eccentricity to SRP (if Not Identical With SRP)
North [m]:
East [m]:
Up [m]:
Date Measured :
Date Installed :
Date Removed :
Additional Information :
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4. Telescope Information
4.01 Receiving Telescope Type :
Aperture [m]:
Mount :
Date Installed :
Date Removed :
Xmitting Telescope Type :
Aperture [m]:
Date Installed :
Date Removed :
Tracking Camera Type :
Model :
Manufacturer :
Field of View [deg]:
Minimum Magnitude [mag]:
Date Installed :
Date Removed :
Transmit/Receive Path :
Transmit/Receive Switch :
Max Slew Rate Az [deg/s]:
Max Slew Rate El [deg/s]:
Max Used Tracking Rate Az :
Max Used Tracking Rate El :
Telescope Shelter :
Daylight Filter Type :
Dayl. Filt. Bandwidth [nm]:
Adjustable Attenuation :
Adjustable Field of View :
Transmit Efficiency :
Receive Efficiency :
Date Installed :
Date Removed :
Additional Information :
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5. Laser System Information
5.01 Laser Type :
Model :
Manufacturer :
Number of Amplifiers :
Primary Wavelength [nm]:
Primary Maximum Energy [mJ]:
Secondary Wavelength [nm]:
Secondary Max. Energy [mJ]:
Xmit Energy Adjustable :
Additional Information :
Pulse Width (FWHM) [ps]:
Max. Repetition Rate [Hz]:
Fullw. Beam Divergence ["]:
Theoretical Beam Div :
Measured Beam Div :
Method Used :
Additional Information :
Final Beam Diameter [m]:
Eyesafe :
Eyesafe Standard :
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 :
Date Removed :
Additional Information :
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6. Receiver System
6.01.01 Primary 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 :
6.02.01 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) :
Low Altitude (400-2000) :
LAGEOS/LARES :
GLONASS :
Etalon :
GNSS :
Geosynchronous :
Moon :
Ave. Pass Switch Time [s]:
Average values for LAGEOS
Single Shot RMS [mm]:
# of Obs per NP :
Use of Semi-trains :
# of Semi-train Tracks :
Range Gate Width [ns]:
Beam Pointing Accuracy ["]:
Angle Encoder Resolution["]:
Min. Tracking Elev. [deg]:
Laser Polarization @emitter:
Operation
Months per Year :
Days per Week :
Hours per Day :
Staff per Shift :
System Shared With :
Time Allocated to SLR [%]:
Remotely Controllable :
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 :
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8. Calibration
8.01 Calibration Type :
Target Location :
Target Type :
Target Structure :
Number of Targets :
Target Distance(s) [m]:
Date Measured :
Accuracy [mm]:
Verification :
Return-Rate Controlled :
Eye-Safe Method :
Additional Information :
Mode of Operation :
Calibration performed :
Single Shot RMS [mm]:
Edit Criterion 1st Chain :
Edit Criterion 2nd Chain :
Application of Cal Data :
Date Installed :
Date Removed :
Additional Information :
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9. Time and Frequency Standards
9.01.01 Frequency Standard Type :
Model :
Manufacturer :
Short Term Stab. [e-12]:
Long Term Stab. [e-12]:
Time Reference :
Synchronization :
Epoch Accuracy [ns]:
Date Installed :
Date Removed :
Additional Information :
9.02.01 GNSS Timing Rcvr Model :
Manufacturer :
Date Installed :
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 :
Data Screening :
Return-Rate Rejection :
Edit Criterion 1st Chain :
Edit Criterion 2nd Chain :
Upload interval :
Date First Applicable :
Date Last Applicable :
Additional Information :
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11. Aircraft Detection
11.01 Detection Type :
Manufacturer/Provider :
Automatic Laser Shutoff :
Alarms Recorded :
Hazard Distance [km]:
Date Installed :
Date Removed :
Additional Information :
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12. Meteorological Instrumentation
12.01.01 Pressure Sensor Model :
Manufacturer :
Recording Interval :
Accuracy [mbar]:
Height Diff to SRP [m]:
Distance from SRP [m]:
Date Installed :
Calibration Interval :
Date Removed :
Additional Information :
12.02.01 Temp Sensor Model :
Manufacturer :
Recording Interval :
Accuracy [deg C]:
Date Installed :
Calibration Interval :
Date Removed :
Additional Information :
12.03.01 Humidity Sensor Model :
Manufacturer :
Recording Interval :
Accuracy [% rel h]:
Date Installed :
Calibration Interval :
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 :
Date Installed :
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 :
Instrumentation Type :
Instrumentation Status :
DOMES Number :
CDP Number :
Differential Components (ITRS)
dx [m]:
dy [m]:
dz [m]:
Date Measured :
Determined by :
Date Installed :
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 :
Mailing Address :
Website :
Primary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
Secondary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
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 :
Hardcopy on File
Site Map :
Site Diagram :
Horizon Mask :
Monument Description :
Site Pictures :
Additional Information :
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