ILRS Site and System Information Form International Laser Ranging Service 0. Form Prepared by (Full Name) : Ron Sebeny Preparer E-mail : rsebeny@peraton.com Date Prepared : 2024-06-20 Report Type : UPDATE Site Log Format Version : 2.0 Site Log Revision : 1. Identification of the Ranging System Reference Point (SRP) Site Name : Monument Peak IERS DOMES Number : 40497M001 CDP Pad ID : 7110 Subnetwork : NASA Description : MONUMENT Monument Description : Standard NASA Disk Monument Inscription : ORT STATION 7110 1981 Mark Description : Punch mark in center Date Installed : 1983-08-15 Date Removed : Geologic Characteristic : Granitic and Metamorphic rock Additional Information : The marker has two punch marks. The center : punch mark is the survey reference point. 2. Site Location Information City or Town : Mount Laguna State or Province : California Country : United States Tectonic Plate : Pacific Local Time (UTC +/- hours) : Approximate Position X coordinate [m]: -2386278.4 Y coordinate [m]: -4802353.9 Z coordinate [m]: 3444881.7 Latitude [deg]: 32.8917 N Longitude [deg]: 116.4227 W Elevation [m]: 1842.177 Survey Method : Date Measured : Additional Information : HEIGHT ABOVE ELLIPSOID 3. General System Information 3.01 System Name : Moblas-4 4-Character Code : MONL CDP System Number : 04 CDP Occupation Number : 12 Eccentricity to SRP (if Not Identical With SRP) North [m]: -0.0242 +- 0.001 East [m]: -0.0148 +- 0.001 Up [m]: 3.1895 +- 0.001 Date Measured : 2018-05-01 Date Installed : 1983-08-15 Date Removed : Additional Information : The eccentricities in this section may not : be current and may not contain the entire : history. The official set of site : eccentricities are maintained in the : following two SINEX data bases at: : : https://cddis.nasa.gov/archive/ : slr/slrocc/ecc_xyz.snx : : and : : https://cddis.nasa.gov/archive/ : slr/slrocc/ecc_une.snx 4. Telescope Information 4.01 Receiving Telescope Type : CASSEGRAIN Aperture [m]: 0.762 Mount : AZ-EL Date Installed : Date Removed : Xmitting Telescope Type : REFRACTOR Aperture [m]: 0.163 Date Installed : Date Removed : Tracking Camera Type : CCD Model : Gen 11 Intensifier Manufacturer : Photon 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]: 5 Max Used Tracking Rate Az : 5 Max Used Tracking Rate El : 3 Telescope Shelter : ROLL-BACK ROOF Daylight Filter Type : Omega Optical 532NBl 9114 Dayl. Filt. Bandwidth [nm]: 10 Adjustable Attenuation : RECEIVE Adjustable Field of View : Transmit Efficiency : 0.70 Receive Efficiency : 0.73 Date Installed : 1983-08-15 Date Removed : Additional Information : 5. Laser System Information 5.01 Laser Type : ND:YAG Model : Manufacturer : Number of Amplifiers : 1 Primary Wavelength [nm]: 1064 Primary Maximum Energy [mJ]: 200 Secondary Wavelength [nm]: 532 Secondary Max. Energy [mJ]: 100 Xmit Energy Adjustable : YES Additional Information : Pulse Width (FWHM) [ps]: 200 Max. Repetition Rate [Hz]: 10 Fullw. Beam Divergence ["]: 20 Theoretical Beam Div : Measured Beam Div : Method Used : Additional Information : Final Beam Diameter [m]: 0.093 Eyesafe : NO Eyesafe Standard : ANSI 136.1,ANSI 136.6 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 : 1983-08-15 Date Removed : Additional Information : 1)Laser repetition rate is capable of 10Hz. : Receive equipment upgraded to 10Hz for LRO : support : 2)Laser Cavity Upgrade 2001-01-23 5.02 Laser Type : ND:YAG Model : Manufacturer : Number of Amplifiers : 1 Primary Wavelength [nm]: 1064 Primary Maximum Energy [mJ]: 200 Secondary Wavelength [nm]: 53 Secondary Max. Energy [mJ]: 100 Xmit Energy Adjustable : YES Additional Information : Pulse Width (FWHM) [ps]: 150 Max. Repetition Rate [Hz]: Fullw. Beam Divergence ["]: Theoretical Beam Div : Measured Beam Div : Method Used : Additional Information : Final Beam Diameter [m]: .093 Eyesafe : NO Eyesafe Standard : ANSI 136.1,ANSI 136.6 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 : 2008-08-14 Date Removed : Additional Information : Saturable absorber upgrade 2008-08-14 Date Installed : Date Removed : Additional Information : 6. Receiver System 6.01.01 Primary Chain Wavelength [nm]: 532 Detector Type : MCP Manufacturer : ITT Model : F4129F Quantum Efficiency [%]: 17.7 Nominal Gain : 1e6 Rise Time [ps]: 350 Jitter (Single PE)[ps]: 100 Field of View Diam ["]: 360 Date Installed : 1986-03-31 Date Removed : 2002-12-05 Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Tennelec Model : TC454 Date Installed : 1986-03-31 Date Removed : Amplitude Measurement : YES Return-Rate Controlled: YES Mode of Operation : few photoelectron to multiphotoelectron Additional Information: Time of Flight Observ. : INTERVAL Manufacturer : Hewlett-Packard Model : 5370B Resolution [ps]: 20 Precision [ps]: 35 Date Installed : 1986-03-31 Date Removed : 2019-03-29 Additional Information : 6.01.02 Primary Chain Wavelength [nm]: 532 Detector Type : MCP Manufacturer : Photek Model : PMT318 Quantum Efficiency [%]: 13.12 Nominal Gain : 1e7 Rise Time [ps]: 250 Jitter (Single PE)[ps]: 100 Field of View Diam ["]: 360 Date Installed : 2002-12-05 Date Removed : Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Tennelec Model : TC454 Date Installed : 1986-03-31 Date Removed : Amplitude Measurement : YES Return-Rate Controlled: YES Mode of Operation : few photoelectron to multiphotoelectron Additional Information: Time of Flight Observ. : INTERVAL Manufacturer : Hewlett-Packard Model : 5370B Resolution [ps]: 20 Precision [ps]: 35 Date Installed : 1986-03-31 Date Removed : 2019-03-29 Additional Information : Installed Event Timer 2019-03-29 0023GMT 6.01.03 Primary Chain Wavelength [nm]: 532 Detector Type : MCP Manufacturer : Photek Model : PMT318 Quantum Efficiency [%]: 13.12 Nominal Gain : 1e7 Rise Time [ps]: 250 Jitter (Single PE)[ps]: 100 Field of View Diam ["]: 360 Date Installed : 2002-12-05 Date Removed : Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Tennelec Model : TC454 Date Installed : 1986-03-31 Date Removed : Amplitude Measurement : YES Return-Rate Controlled: YES Mode of Operation : few photoelectron to multiphotoelectron Additional Information: Time of Flight Observ. : Epoch Manufacturer : Cybiom Model : cybi-ETM-02 Resolution [ps]: 1 Precision [ps]: 3 Date Installed : 2019-03-29 Date Removed : Additional Information : The HP5370B no longer prime 6.02.01 Secondary Chain Wavelength [nm]: 532 Detector Type : MCP Manufacturer : ITT Model : F4129F Quantum Efficiency [%]: 17.7 Nominal Gain : 1e6 Rise Time [ps]: 350 Jitter (Single PE)[ps]: 100 Field of View Diam ["]: 360 Date Installed : 1986-03-31 Date Removed : 2002-12-05 Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Tennelec Model : TC454 Date Installed : 1986-03-31 Date Removed : Amplitude Measurement : YES Return-Rate Controlled: YES Mode of Operation : Single photoelectron to multiphotoelectron Additional Information: Time of Flight Observ. : INTERVAL Manufacturer : Hewlett-Packard Model : 5370B Resolution [ps]: 20 Precision [ps]: 35 Date Installed : 1986-03-31 Date Removed : 2019-03-29 Additional Information : High sensivity laser receiver configuration : installed 1997-04-01. Everything is the same : as the primary chain except the discriminator : threshold has been lowered to accept single : photons and then amplified with 24db of gain. : : 6.02.02 Secondary Chain Wavelength [nm]: 532 Detector Type : MCP Manufacturer : Photek Model : PMT318 Quantum Efficiency [%]: 13.12 Nominal Gain : 1e7 Rise Time [ps]: 250 Jitter (Single PE)[ps]: 100 Field of View Diam ["]: 360 Date Installed : 2002-12-05 Date Removed : Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Tennelec Model : TC454 Date Installed : 1986-03-31 Date Removed : Amplitude Measurement : YES Return-Rate Controlled: YES Mode of Operation : Single photoelectron to multiphotoelectron Additional Information: Time of Flight Observ. : INTERVAL Manufacturer : Hewlett-Packard Model : 5370B Resolution [ps]: 20 Precision [ps]: 35 Date Installed : 1986-03-31 Date Removed : 2019-03-29 Additional Information : High sensivity laser receiver configuration : installed 1997-04-01. Everything is the same : as the primary chain except the discriminator : threshold has been lowered to accept single : photons and then amplified with 24db of gain. : : 6.02.03 Secondary Chain Wavelength [nm]: 532 Detector Type : MCP Manufacturer : Photek Model : PMT31 Quantum Efficiency [%]: 13.12 Nominal Gain : 1e7 Rise Time [ps]: 250 Jitter (Single PE)[ps]: 10 Field of View Diam ["]: 360 Date Installed : 2002-12-05 Date Removed : Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Tennelec Model : TC454 Date Installed : 1986-03-31 Date Removed : Amplitude Measurement : YES Return-Rate Controlled: YES Mode of Operation : Single photoelectron to multiphotoelectron Additional Information: Time of Flight Observ. : Epoch Manufacturer : Cybioms Model : cybi-ETM-02 Resolution [ps]: 1 Precision [ps]: 3 Date Installed : 2019-03-29 Date Removed : Additional Information : The HP5370B no longer prime 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 : 7. Tracking Capabilities 7.01 Satellites Very Low Alt (<400 km) : YES Low Altitude (400-2000) : YES LAGEOS/LARES : YES GLONASS : YES Etalon : NIGHT GNSS : NIGHT Geosynchronous : Moon : NO Ave. Pass Switch Time [s]: 60 Average values for LAGEOS Single Shot RMS [mm]: 10 # of Obs per NP : 100 Use of Semi-trains : NO # of Semi-train Tracks : N.A. Range Gate Width [ns]: 600 - 10000 Beam Pointing Accuracy ["]: 0.6 Angle Encoder Resolution["]: 0.6 Min. Tracking Elev. [deg]: 20 Laser Polarization @emitter: Operation Months per Year : 12 Days per Week : 7 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 : 1983-08-15 HH:MM UT Date Last Applicable : 2004-02-06 04:00 UT Additional Information : Station does not provide support : during U.S. holidays 7.02 Satellites Very Low Alt (<400 km) : YES Low Altitude (400-2000) : YES LAGEOS/LARES : YES GLONASS : YES Etalon : NIGHT GNSS : NIGHT Geosynchronous : Moon : NO Ave. Pass Switch Time [s]: 60 Average values for LAGEOS Single Shot RMS [mm]: 10 # of Obs per NP : 100 Use of Semi-trains : NO # of Semi-train Tracks : N.A. Range Gate Width [ns]: 600 - 10000 Beam Pointing Accuracy ["]: 0.6 Angle Encoder Resolution["]: 0.6 Min. Tracking Elev. [deg]: 20 Laser Polarization @emitter: Operation Months per Year : 12 Days per Week : 5 Hours per Day : 16 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 : 2004-08-15 HH:MM UT Date Last Applicable : YYYY-02-06 04:00 UT Additional Information : Station does not provide support : during U.S. holidays 8. Calibration 8.01 Calibration Type : PRE+POST Target Location : EXTERNAL Target Type : CORNER CUBE Target Structure : CONCRETE PIER Number of Targets : Target Distance(s) [m]: 187 Date Measured : 1999-10-01 Accuracy [mm]: 2 Verification : first order survey and ranging to multiple : ground targets Return-Rate Controlled : YES Eye-Safe Method : Additional Information : Mode of Operation : SINGLE/MULTI PHOTON Calibration performed : 3.5 Single Shot RMS [mm]: 3 - 4 Edit Criterion 1st Chain : ITERATIVE 3.0 SIGMA Edit Criterion 2nd Chain : N.A. Application of Cal Data : AVERAGE Date Installed : 1990-12-01 Date Removed : Additional Information : 9. Time and Frequency Standards 9.01.01 Frequency Standard Type : Rubidium disciplined by GPS Model : XL-DC 151-358-108-2 Manufacturer : Symmetricom (TrueTime) Short Term Stab. [e-12]: 10 Long Term Stab. [e-12]: 3 Time Reference : GPS Synchronization : GPS Epoch Accuracy [ns]: 100 Date Installed : 1999-06-30 Date Removed : 2024-06-14 Additional Information : This Truetime model contains the : Stanford PRS10 Rubidium Frequency : Standard 9.01.02 Frequency Standard Type : GPS Steered Rubidium Model : FS740 Manufacturer : Stanford Research Short Term Stab. [e-12]: 1000 Long Term Stab. [e-12]: 3 Time Reference : GPS Synchronization : GPS Epoch Accuracy [ns]: 50 Date Installed : 2024-06-14 Date Removed : Additional Information : 9.02.01 GNSS Timing Rcvr Model : XL-DC 151-358-108-2 Manufacturer : Symmetricom (TrueTime) Date Installed : 1999-04-20 Date Removed : Additional Information : CNS clock used for comparisons 9.03.01 One-way System Calibration Date performed : Direction Calibrated : Additional Information : 10. Preprocessing Information 10.01 On-site NP Generation : YES Data Screening : IRV+POLYNOMIAL Return-Rate Rejection : Edit Criterion 1st Chain : ITERATIVE 3.0 SIGMA Edit Criterion 2nd Chain : N.A. Upload interval : HOURLY Date First Applicable : 1991-12-09 HH:MM UT Date Last Applicable : 2001-12-19 HH:MM UT Additional Information : 10.02 On-site NP Generation : YES Data Screening : IRV+POLYNOMIAL Return-Rate Rejection : Edit Criterion 1st Chain : ITERATIVE 3.0 SIGMA Edit Criterion 2nd Chain : N.A. Upload interval : HOURLY Date First Applicable : 2001-12-19 HH:MM UT Date Last Applicable : Additional Information : Generic Normal Point Processing : System 2.0 installed 2001-12-19 11. Aircraft Detection 11.01 Detection Type : RADAR Manufacturer/Provider : Automatic Laser Shutoff : Alarms Recorded : Hazard Distance [km]: Date Installed : 1995-09-15 Date Removed : Additional Information : 12. Meteorological Instrumentation 12.01.01 Pressure Sensor Model : MET3 Manufacturer : Paroscientific Recording Interval : EVERY PULSE Accuracy [mbar]: 0.1 Height Diff to SRP [m]: -0.15 Distance from SRP [m]: Date Installed : 2000-04-16 HH:MM UT Calibration Interval : YEARLY Date Removed : 2011-03-29 HH:MM UT Additional Information : 12.01.02 Pressure Sensor Model : MET4 Manufacturer : Paroscientific Recording Interval : EVERY PULSE Accuracy [mbar]: 0.08 Height Diff to SRP [m]: 0 Distance from SRP [m]: Date Installed : 2011-03-29 HH:MM UT Calibration Interval : BIYEARLY Date Removed : Additional Information : 12.02.01 Temp Sensor Model : MET3 Manufacturer : Paroscientific Recording Interval : EVERY PULSE Accuracy [deg C]: 0.5 Date Installed : 2000-04-16 HH:MM UT Calibration Interval : YEARLY Date Removed : 2011-03-29 HH:MM UT Additional Information : 12.02.02 Temp Sensor Model : MET4 Manufacturer : Paroscientific Recording Interval : EVERY PULSE Accuracy [deg C]: 0.2 Date Installed : 2011-03-29 HH:MM UT Calibration Interval : BIYEARLY Date Removed : Additional Information : 12.03.01 Humidity Sensor Model : MET3 Manufacturer : Paroscientific Recording Interval : PER PASS Accuracy [% rel h]: 2 Date Installed : 2000-04-16 HH:MM UT Calibration Interval : YEARLY Date Removed : 2011-03-29 HH:MM UT Additional Information : 12.03.02 Humidity Sensor Model : MET4 Manufacturer : Paroscientific Recording Interval : PER PASS Accuracy [% rel h]: 2 Date Installed : 2011-03-29 HH:MM UT Calibration Interval : BIYEARLY Date Removed : Additional Information : 13. Local Ties, Eccentricities, and Collocation Information 13.01 Collocated Permanent Geodetic Systems 13.01.01.01 GNSS : IGS Date Installed : 1993-09-16 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 : NO Date Installed : 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 : 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 : 7110 DOMES Number : 40497M001 CDP Number : 7110 To: Monument Name : NCMN 1983 mobile VLBI NGS disk DOMES Number : 40497M003 CDP Number : 7274 Differential Components (ITRS) dx [m]: -11.3889 +- 0.002 dy [m]: 7.801 +- 0.002 dz [m]: 2.5231 +- 0.002 Date Measured : 2018-05-17 Determined by : Peraton Additional Information : 13.03.02.01 Eccentricities Between Other Monuments on Site From: Monument Name : 7110 DOMES Number : 40497M001 CDP Number : 7110 To: Monument Name : PGGA MARK DOMES Number : 40497M004 CDP Number : N.A. Differential Components (ITRS) dx [m]: 31.368 +- 0.002 dy [m]: -5.458 +- 0.002 dz [m]: 20.528 +- 0.002 Date Measured : 2018-05-17 Determined by : Peraton Additional Information : original site log had a typo : for the Dz component 20.256 14. Local Events Possibly Affecting Computed Position 14.01 Date : 2013-03-11 16:56 UT Event : Earthquake Additional Information : 4.7 Earthquake 20km ESE of Anza, CA : Centered 33.502 degrees N 116.457 degrees W 14.02 Date : 2010-06-15 04:26 UT Event : Earthquake Additional Information : 5.8 Magnitude : Lat 32.7N Lon 115.921W : Aftershock due to Baja Earthquake 14.03 Date : 2010-04-04 22:40 UT Event : Baja Earthquake Additional Information : 7.2 Magnitude and multiple 5.4 mag : aftershocks on same day : Lat 32.297N Lon 115.047W 15. On-Site, Point of Contact Agency Information Agency : Harris Mailing Address : NASA SLR Tracking Station : P.O. Box 130 : Mt. Laguna, CA 91948 Website : Primary Contact Contact Name : Ronald Sebeny Telephone (primary) : 619-473-9754 Telephone (secondary) : 619-840-9754 Fax : 619-473-8387 E-mail : RSEBENY@peraton.com Secondary Contact Contact Name : Chris Szwec Telephone (primary) : 301-823-2609 Telephone (secondary) : Fax : 301-823-2501 E-mail : CSZWEC@peraton.com Tertiary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 16. Responsible Agency (if different from 15.) Agency : NASA Mailing Address : Goddard Space Flight Center, Code 61A : 8800 Greenbelt Road : Greenbelt, MD 20771 USA Primary Contact Contact Name : Dorman Jeffery Telephone (primary) : 301-286-1128 Telephone (secondary) : Fax : E-mail : jeffery.l.dorman@nasa.gov Secondary Contact Contact Name : Stephen Merkowitz Telephone (primary) : 301-286-9412 Telephone (secondary) : Fax : E-mail : stephen.m.merkowitz@nasa.gov Additional Information : 17. More Information URL for More Information : http://stat.hpwren.ucsd.edu/cameras/hpwren- : iqeye3.JPG Hardcopy on File Site Map : YES Site Diagram : YES Horizon Mask : YES Monument Description : YES Site Pictures : YES Additional Information :