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McDonald: General information
McDonald
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McDonald Contact:
Agency | MLRS/ McDonald Observatory |
Mailing Address | 9 Lunar Cir McDonald Obs TX 79734, USA |
Primary Contact | |
Contact Name | Jerry Wiant |
Telephone (primary) | (432) 426-3668 |
Telephone (secondary) | (432) 426-3263 |
Fax | NA |
jerryrw@utexas.edu | |
Secondary Contact | |
Contact Name | |
Telephone (primary) | |
Telephone (secondary) | |
Fax | |
McDonald Coordinates:
Approximate Position:
X coordinate | [m] | -1330021.0 |
Y coordinate | [m] | -5328401.8 |
Z coordinate | [m] | 3236480.7 |
Latitude | [deg] | 30.6802 N |
Longitude | [deg] | 255.9848 E |
Elevation | [m] | 2006.2210 |
Survey Method | ||
Date Measured | ||
Additional Information |
McDonald News:
Local Events:
Date | 2019-09-12 00 |
Event | Lightning strikes |
Additional Information | Lightning disabled several MLRS subsystems. This marks the permanent end of MLRS operations. |
SLRMail Messages:
No SLRMail mesages found.McDonald Link:
McDonald: 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) : Randall L. Ricklefs Preparer E-mail : ricklefs@csr.utexas.edu Date Prepared : 2019-01-09 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 : McDonald Observatory / Mt. Fowlkes IERS DOMES Number : 40442M006 CDP Pad ID : 7080 Subnetwork : NASA Description : MONUMENT Monument Description : Standard Brass Disk Monument Inscription : 7080 1988 NASA GSFC Greenbelt, MD Mark Description : punched dimple Date Installed : 1988-01-01 Date Removed : Geologic Characteristic : Tertiary igneous rocks Additional Information : Tertiary igneous rocks predominately : found on the surface. The influence of : topography on soil formation is : pronounced. Due to extensive erosion, : the soils of hills and mountains are : shallow, whereas the soils of valleys : and plains are deep. Back to top 2. Site Location Information City or Town : McDonald Observatory (near Fort Davis) State or Province : Texas Country : USA Tectonic Plate : North American Local Time (UTC +/- hours) : -5 Approximate Position X coordinate [m]: -1330021.0 Y coordinate [m]: -5328401.8 Z coordinate [m]: 3236480.7 Latitude [deg]: 30.6802 N Longitude [deg]: 255.9848 E Elevation [m]: 2006.2210 Survey Method : Date Measured : Additional Information : Back to top 3. General System Information 3.01 System Name : McDonald Laser Ranging System (MLRS) 4-Character Code : MDOL CDP System Number : 24 CDP Occupation Number : 19 Eccentricity to SRP (if Not Identical With SRP) North [m]: -0.004 +- 0.002 East [m]: -0.005 +- 0.002 Up [m]: 1.756 +- 0.002 Date Measured : 1988-02-10 Date Installed : 1988-02-10 Date Removed : Additional Information : 3.02 System Name : McDonald Laser Ranging System (MLRS) 4-Character Code : MDOL CDP System Number : 24 CDP Occupation Number : 19 Eccentricity to SRP (if Not Identical With SRP) North [m]: -0.003 +- 0.002 East [m]: -0.006 +- 0.002 Up [m]: 1.763 +- 0.002 Date Measured : 1993-01-29 Date Installed : 1988-02-10 Date Removed : Additional Information : 3.03 System Name : McDonald Laser Ranging Station (MLRS) 4-Character Code : MDOL CDP System Number : 24 CDP Occupation Number : 19 Eccentricity to SRP (if Not Identical With SRP) North [m]: -0.003 +- 0.002 East [m]: -0.006 +- 0.002 Up [m]: 1.763 +- 0.002 Date Measured : 1993-01-29 Date Installed : 1988-02-10 Date Removed : Additional Information : Back to top 4. Telescope Information 4.01 Receiving Telescope Type : Coude Aperture [m]: 0.75 Mount : XY Date Installed : Date Removed : Xmitting Telescope Type : Coude Aperture [m]: 0.75 Date Installed : Date Removed : Tracking Camera Type : TV Model : WV-1550 Manufacturer : Panasonic Field of View [deg]: 0.025 Minimum Magnitude [mag]: 7 Date Installed : Date Removed : Transmit/Receive Path : COMMON COUDE Transmit/Receive Switch : ROTATING MIRROR Max Slew Rate Az [deg/s]: 3 Max Slew Rate El [deg/s]: 3 Max Used Tracking Rate Az : 0.5416 Max Used Tracking Rate El : 0.5416 Telescope Shelter : hinged, motorized hood Daylight Filter Type : Spectral filter Dayl. Filt. Bandwidth [nm]: 0.3 - 0.10 Adjustable Attenuation : none Adjustable Field of View : Transmit Efficiency : 0.53 Receive Efficiency : 0.38 Date Installed : 1981-08-03 Date Removed : 2015-07-13 Additional Information : X and y slew rates reported as AZ, EL, : respectively. Telescope xmit and : receive efficiencies were not measured. : None : None : None 4.02 Receiving Telescope Type : Coude Aperture [m]: 0.75 Mount : XY Date Installed : Date Removed : Xmitting Telescope Type : Coude Aperture [m]: 0.75 Date Installed : Date Removed : Tracking Camera Type : TV Model : WV-1550 Manufacturer : Panasonic Field of View [deg]: 0.025 Minimum Magnitude [mag]: 7 Date Installed : Date Removed : Transmit/Receive Path : COMMON COUDE Transmit/Receive Switch : ROTATING MIRROR Max Slew Rate Az [deg/s]: 3 Max Slew Rate El [deg/s]: 3 Max Used Tracking Rate Az : 0.5416 Max Used Tracking Rate El : 0.5416 Telescope Shelter : hinged, motorized hood Daylight Filter Type : Spectral filter Dayl. Filt. Bandwidth [nm]: 0.3 - 0.10 Adjustable Attenuation : none Adjustable Field of View : Transmit Efficiency : 0.53 Receive Efficiency : 0.38 Date Installed : 2015-07-13 Date Removed : Additional Information : X and y slew rates reported as AZ, EL, : respectively. Telescope xmit and : receive efficiencies were not measured. : 2 tracking cameras: normal and faint object : Daylight filter: 0.3, 0.6, 0.10 : Xmit efficiency: < 0.53 : Xcv eficiency: < 0.38 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]: 1500 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]: 0.75 Eyesafe : NO Eyesafe Standard : ANSI 136.1 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 : 1985-02-01 Date Removed : 2003-08-05 Additional Information : divergence is adjustable 5.02 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]: 1500 Xmit Energy Adjustable : YES Additional Information : Pulse Width (FWHM) [ps]: 200 Max. Repetition Rate [Hz]: 10 Fullw. Beam Divergence ["]: 0 - 20 Theoretical Beam Div : Measured Beam Div : Method Used : Additional Information : Final Beam Diameter [m]: 0.75 Eyesafe : NO Eyesafe Standard : ANSI 136.1 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 : 2003-08-05 Date Removed : 2010-11-05 Additional Information : divergence is adjustable. : Pulse slicer converted from krytrons to : avalanche diodes. 5.03 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]: 150 Xmit Energy Adjustable : YES Additional Information : Pulse Width (FWHM) [ps]: 200 Max. Repetition Rate [Hz]: 10 Fullw. Beam Divergence ["]: 0 - 20 Theoretical Beam Div : Measured Beam Div : Method Used : Additional Information : Final Beam Diameter [m]: 0.75 Eyesafe : NO Eyesafe Standard : ANSI 136.1 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 : 2011-11-05 Date Removed : 2015-07-13 Additional Information : Correction to previous entries. Energy : shown is now energy/pulse, not /second. : Note - laser average power is 1.5W. 5.04 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]: 80 Xmit Energy Adjustable : YES Additional Information : Pulse Width (FWHM) [ps]: 150 Max. Repetition Rate [Hz]: 10 Fullw. Beam Divergence ["]: 0.4 - 50 Theoretical Beam Div : Measured Beam Div : Method Used : Additional Information : Final Beam Diameter [m]: 0.75 Eyesafe : NO Eyesafe Standard : ANSI 136.1 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 : 2015-07-13 Date Removed : Additional Information : Old laser upgraded to level of rest of NASA : network lasers. : Currently used at 80mJ and 10-50" beam : divergence. Back to top 6. Receiver System 6.01.01 Primary Chain Wavelength [nm]: 532 Detector Type : MCP Manufacturer : ITT Model : F4129F Quantum Efficiency [%]: 11 Nominal Gain : 1e6 Rise Time [ps]: 350 Jitter (Single PE)[ps]: 100 Field of View Diam ["]: 6 - 35 Date Installed : 1990-09-25 Date Removed : Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Tennelec Model : 454 Date Installed : 1986-10-26 Date Removed : Amplitude Measurement : NO Return-Rate Controlled: YES Mode of Operation : SINGLE to multi photon Additional Information: Time of Flight Observ. : EVENT Manufacturer : EG&G Model : TD811 Resolution [ps]: 25 Precision [ps]: 25 Date Installed : 1990-06-06 Date Removed : Additional Information : The TD811, CMOS Clock, and Timer B : are used in conjunction. : Used primarily for artificial satellites : FOV diameter: 6,10,12,20,35, selectable : Resolution: 50 psec/channel, 4 channels : gives 25 psec : 6.02.01 Secondary Chain Wavelength [nm]: 532 Detector Type : PMT Manufacturer : Varian Model : VPM152S.921 Quantum Efficiency [%]: 29 Nominal Gain : N.A. Rise Time [ps]: N.A. Jitter (Single PE)[ps]: N.A. Field of View Diam ["]: 6 - 35 Date Installed : 1985-10-DD Date Removed : 2007-05-26 Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Tennelec Model : 454 Date Installed : 1986-10-26 Date Removed : Amplitude Measurement : NO Return-Rate Controlled: YES Mode of Operation : SINGLE Additional Information: Time of Flight Observ. : EVENT Manufacturer : EG&G Model : TD811 Resolution [ps]: 25 Precision [ps]: 25 Date Installed : 1990-06-06 Date Removed : Additional Information : The TD811, CMOS Clock, and Timer B : are used in conjunction. This chain : used primarily for lunar and : some high satellites. No longer functional. : FOV: 6,10,12,20,35, selectable. : Resolution: 50 psec/channel, 4 channels : gives 25 psec : 6.02.02 Secondary Chain Wavelength [nm]: 532 Detector Type : PMT Manufacturer : Hamamatsu Model : R5916U-74 with Avantek amp UTC12-102M Quantum Efficiency [%]: 29 Nominal Gain : N.A. Rise Time [ps]: N.A. Jitter (Single PE)[ps]: N.A. Field of View Diam ["]: 6 - 35 Date Installed : 2007-05-26 Date Removed : 2013-12-14 Amplifier Type : Manufacturer : Model : Gain : Bandwidth : Date Installed : Date Removed : Additional Information: Signal Processing : CFD Manufacturer : Tennelec Model : 454 Date Installed : 1986-10-26 Date Removed : Amplitude Measurement : NO Return-Rate Controlled: YES Mode of Operation : SINGLE Additional Information: Time of Flight Observ. : EVENT Manufacturer : EG&G Model : TD811 Resolution [ps]: 25 Precision [ps]: 25 Date Installed : 1990-06-06 Date Removed : Additional Information : The TD811, CMOS Clock, and Timer B : are used in conjunction. This chain : used primarily for lunar and : some high satellites. No longer functional. : FOV: 6,10,12,20,35, selectable : Resolution: 50 psec/channel, 4 channels : gives 25 psec 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) : NO Low Altitude (400-2000) : YES LAGEOS/LARES : YES GLONASS : YES Etalon : YES GNSS : YES Geosynchronous : YES Moon : YES Ave. Pass Switch Time [s]: 2 Average values for LAGEOS Single Shot RMS [mm]: 13 # of Obs per NP : 85 Use of Semi-trains : NO # of Semi-train Tracks : N.A. Range Gate Width [ns]: 50 - 20000 Beam Pointing Accuracy ["]: 10 Angle Encoder Resolution["]: 0.1 incremental; 0.6 absolute Min. Tracking Elev. [deg]: 20 Laser Polarization @emitter: unknown 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 : YES Satellite Verification : Ajisai Date Verified : Maximum elevation : YES Satellite Verification : Ajisai Date Verified : Pass segments : YES Satellite Verification : NONE Date Verified : Schedule segments : YES Satellite Verification : LRO Date Verified : Maximum laser power limit: YES Satellite Verification : LRO Date Verified : Date First Applicable : 1981-10-01 00:00 UT Date Last Applicable : 2015-08-31 HH:MM UT Additional Information : incremental encoder used for servo system and : lunar tracking; absolutes used for slr/stars : Change to one-person crews, 24 hours a day, : 7 days a week in April 1999. : Down-sized to two one-person crews in March : 2004. : Min Tracking El: 20; higher in north : due to van obstruction : Power limit is manual, prompted : by software 7.02 Satellites Very Low Alt (<400 km) : NO Low Altitude (400-2000) : YES LAGEOS/LARES : YES GLONASS : YES Etalon : YES GNSS : YES Geosynchronous : Moon : YES Ave. Pass Switch Time [s]: 2 Average values for LAGEOS Single Shot RMS [mm]: 13 # of Obs per NP : 85 Use of Semi-trains : NO # of Semi-train Tracks : N.A. Range Gate Width [ns]: 50 - 20000 Beam Pointing Accuracy ["]: 10 Angle Encoder Resolution["]: 0.1 incremental; 0.6 absolute Min. Tracking Elev. [deg]: 20 Laser Polarization @emitter: Operation Months per Year : 12 Days per Week : 7 Hours per Day : 8 - 10 Staff per Shift : 1 System Shared With : nothing Time Allocated to SLR [%]: 100 Remotely Controllable : NO Tracking Restrictions Go/No-go flag : YES Satellite Verification : Ajisai Date Verified : Maximum elevation : YES Satellite Verification : Ajisai Date Verified : Pass segments : YES Satellite Verification : NONE Date Verified : Schedule segments : YES Satellite Verification : LRO Date Verified : Maximum laser power limit: YES Satellite Verification : LRO Date Verified : Date First Applicable : 1981-10-01 00:00 UT Date Last Applicable : 2015-08-31 HH:MM UT Additional Information : Yoke incremental and absolute encoder : replacedwith incremental tape encoder 2004. : Down-sized to one shift September 2015. : Lost lunar capability in 2013, due to : failure of detector. : Min tracking el: 20; higher in north : due to van obstruction : Power limit is manual, prompted : by software Back to top 8. Calibration 8.01 Calibration Type : REALTIME Target Location : INTERNAL Target Type : CORNER CUBE Target Structure : telescope spider Number of Targets : Target Distance(s) [m]: 2.8608 Date Measured : 1990-01-01 Accuracy [mm]: 2mm Verification : 1993 collocation Return-Rate Controlled : YES Eye-Safe Method : Additional Information : Mode of Operation : DON`T KNOW Calibration performed : length of pass Single Shot RMS [mm]: 8.5 Edit Criterion 1st Chain : ITERATIVE 3.0 SIGMA Edit Criterion 2nd Chain : ITERATIVE 3.0 SIGMA Application of Cal Data : AVERAGE Date Installed : 1990-04-04 Date Removed : Additional Information : Mode of operation for the moon : was single photon Back to top 9. Time and Frequency Standards 9.01.01 Frequency Standard Type : QUARTZ Model : 1210D-01 Manufacturer : Austron Short Term Stab. [e-12]: 10 Long Term Stab. [e-12]: 10 Time Reference : GPS Synchronization : manual Epoch Accuracy [ns]: 100 Date Installed : 1997-08-26 Date Removed : 2009-07-02 Additional Information : 9.01.02 Frequency Standard Type : Cesium Model : 4310 Manufacturer : Symmetricom Short Term Stab. [e-12]: 10 Long Term Stab. [e-12]: 10 Time Reference : CESIUM Synchronization : manual Epoch Accuracy [ns]: 1 Date Installed : 2009-07-02 Date Removed : Additional Information : Austron quartz is backup 9.02.01 GNSS Timing Rcvr Model : TAC Manufacturer : Totally Accurate Clock Date Installed : 1994-09-01 Date Removed : 2010-08-DD Additional Information : Also have a second TAC : installed 1999-04-01 9.02.02 GNSS Timing Rcvr Model : CNSC01 Manufacturer : CNS Date Installed : 2010-08-DD Date Removed : Additional Information : Old TAC reinstalled after repair (January : 2011), but was very removed after it failed : again (also during January). : Also have second CNSC01 as backup 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/lunar ephemeris+POLYNOMIAL Return-Rate Rejection : Edit Criterion 1st Chain : ITERATIVE 3.0 Edit Criterion 2nd Chain : ITERATIVE 3.0 Upload interval : HOURLY Date First Applicable : 1991-04-10 00:00 UT Date Last Applicable : 2005-04-18 00:00 UT Additional Information : 10.02 On-site NP Generation : YES Data Screening : CPF/lunar ephemeris+POLYNOMIAL Return-Rate Rejection : Edit Criterion 1st Chain : ITERATIVE 3.0 Edit Criterion 2nd Chain : ITERATIVE 3.0 Upload interval : HOURLY Date First Applicable : 2005-04-18 00:00 UT Date Last Applicable : Additional Information : Back to top 11. Aircraft Detection 11.01 Detection Type : RADAR Manufacturer/Provider : Automatic Laser Shutoff : Alarms Recorded : Hazard Distance [km]: Date Installed : 1999-03-27 Date Removed : 2016-07-13 Additional Information : 11.02 Detection Type : RADAR Manufacturer/Provider : Automatic Laser Shutoff : Alarms Recorded : Hazard Distance [km]: Date Installed : 2016-07-13 Date Removed : Additional Information : Replacement unit installed. : Requires periodic measurements to : targets to verify system functionality. Back to top 12. Meteorological Instrumentation 12.01.01 Pressure Sensor Model : 270 Manufacturer : Setra Recording Interval : four times per hour Accuracy [mbar]: 0.3 Height Diff to SRP [m]: 0 Distance from SRP [m]: Date Installed : 1991-07-01 HH:MM UT Calibration Interval : as needed Date Removed : 2003-05-16 20:00 UT Additional Information : 12.01.02 Pressure Sensor Model : Met3 Manufacturer : Paroscientific Recording Interval : four times per hour Accuracy [mbar]: 0.1 Height Diff to SRP [m]: 0 Distance from SRP [m]: Date Installed : 2003-05-16 20:00 UT Calibration Interval : as needed Date Removed : 2012-06-16 21:00 UT Additional Information : 12.01.03 Pressure Sensor Model : Met4 Manufacturer : Paroscientific Recording Interval : four times per hour Accuracy [mbar]: 0.1 Height Diff to SRP [m]: 0 Distance from SRP [m]: Date Installed : 2012-06-16 21:00 UT Calibration Interval : as needed Date Removed : Additional Information : 12.02.01 Temp Sensor Model : HX93c Manufacturer : Omega Recording Interval : four times per hour Accuracy [deg C]: 1 Date Installed : 1996-03-27 00:00 UT Calibration Interval : as needed Date Removed : 2003-05-16 20:00 UT Additional Information : 12.02.02 Temp Sensor Model : Met3 Manufacturer : Paroscientific Recording Interval : four times per hour Accuracy [deg C]: 0.5 Date Installed : 2003-05-16 20:00 UT Calibration Interval : as needed Date Removed : 2012-06-16 21:00 UT Additional Information : 12.02.03 Temp Sensor Model : Met4 Manufacturer : Paroscientific Recording Interval : four times per hour Accuracy [deg C]: 0.5 Date Installed : 2012-06-16 21:00 UT Calibration Interval : as needed Date Removed : Additional Information : 12.03.01 Humidity Sensor Model : HX93c Manufacturer : Omega Recording Interval : four times per hour Accuracy [% rel h]: 2.0 Date Installed : 1996-03-27 00:00 UT Calibration Interval : as needed Date Removed : 2003-05-16 20:00 UT Additional Information : (multiple lines) 12.03.02 Humidity Sensor Model : Met3 Manufacturer : Paroscientific Recording Interval : four times per hour Accuracy [% rel h]: 2.0 Date Installed : 2003-05-16 20:00 UT Calibration Interval : as needed Date Removed : 2012-06-16 21:00 UT Additional Information : (multiple lines) 12.03.03 Humidity Sensor Model : Met4 Manufacturer : Paroscientific Recording Interval : four times per hour Accuracy [% rel h]: 2.0 Date Installed : 2012-06-16 21:00 UT Calibration Interval : as needed Date Removed : Additional Information : Back to top 13. Local Ties, Eccentricities, and Collocation Information 13.01 Collocated Permanent Geodetic Systems 13.01.01.01 GNSS : IGS Date Installed : 1993-06-01 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 : YES Date Installed : 1988-11-DD Date Removed : Additional Info : (multiple lines) : Harvard dish was in place when MLRS was : built. Replaced by VLA dish sometime later : (mid 1980`s?). : Collocation with NASA mobile VLBI : station MV-4, started 1988-11 13.01.05.01 Gravimeter : NO Date Installed : Date Removed : Additional Info : Gravimeter visit to McDonald 2.7m in : 1970s 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 : MLRS Mark 7080 1988 DOMES Number : 40442M006 CDP Number : 7080 To: Monument Name : GPS Mark 4011-S DOMES Number : 40442M012 CDP Number : Differential Components (ITRS) dx [m]: 22.3961 +- 0.001 dy [m]: 8.4818 +- 0.001 dz [m]: 23.4043 +- 0.001 Date Measured : 2013-02-01 Determined by : ATSC Additional Information : Tubro Rogue antenna platform 13.03.02.01 Eccentricities Between Other Monuments on Site From: Monument Name : MLRS Mark 7080 1988 DOMES Number : 40442M006 CDP Number : 7080 To: Monument Name : VLBA antenna reference point DOMES Number : 40442S017 CDP Number : 7613 Differential Components (ITRS) dx [m]: 6011.9422 +- 0.010 dy [m]: -3780.0988 +- 0.012 dz [m]: -4518.3196 +- 0.010 Date Measured : 2013-02-01 Determined by : ATSC Additional Information : No value on record for installation 13.03.03.01 Eccentricities Between Other Monuments on Site From: Monument Name : MLRS Mark 7080 1988 DOMES Number : 40442M006 CDP Number : 7080 To: Monument Name : 85-foot VLBI ref. point (HRAS 085) DOMES Number : 40442S003 CDP Number : 7216 Differential Components (ITRS) dx [m]: 5810.066 +- 0.010 dy [m]: -3621.343 +- 0.012 dz [m]: -4362.423 +- 0.010 Date Measured : 1999-06-01 Determined by : ATSC Additional Information : 13.03.04.01 Eccentricities Between Other Monuments on Site From: Monument Name : MLRS Mark 7080 1988 DOMES Number : 40442M006 CDP Number : 7080 To: Monument Name : Mobile VLBI and SLR Mark 7850 1988 DOMES Number : 40442M008 CDP Number : 7850 Differential Components (ITRS) dx [m]: 12.8749 +- 0.001 dy [m]: 10.2780 +- 0.001 dz [m]: 21.9217 +- 0.001 Date Measured : 2013-02-01 Determined by : ATSC Additional Information : 13.03.05.01 Eccentricities Between Other Monuments on Site From: Monument Name : MLRS Mark 7080 1988 DOMES Number : 40442M006 CDP Number : 7080 To: Monument Name : SLR Mark 7851 DOMES Number : 40442M011 CDP Number : 7851 Differential Components (ITRS) dx [m]: 11.5993 +- 0.001 dy [m]: 10.8975 +- 0.001 dz [m]: 22.4327 +- 0.001 Date Measured : 2013-02-01 Determined by : ATSC Additional Information : 13.03.06.01 Eccentricities Between Other Monuments on Site From: Monument Name : MLRS Mark 7080 1988 DOMES Number : 40442M006 CDP Number : 7080 To: Monument Name : LLR McDonald 2 DOMES Number : 40442S002 CDP Number : 7206 Differential Components (ITRS) dx [m]: -760.232 +- 0.003 dy [m]: -353.791 +- 0.007 dz [m]: -783.181 +- 0.005 Date Measured : 1999-06-01 Determined by : ATSC Additional Information : 13.03.07.01 Eccentricities Between Other Monuments on Site From: Monument Name : MLRS Mark 7080 1988 DOMES Number : 40442M006 CDP Number : 7080 To: Monument Name : MLRS, McDonald, TLRS-1 standard NASA disk DOMES Number : 40442M001 CDP Number : 7086 Differential Components (ITRS) dx [m]: -104.329 +- 0.001 dy [m]: -124.770 +- 0.001 dz [m]: -330.563 +- 0.001 Date Measured : 1999-06-01 Determined by : ATSC Additional Information : DOMES 40442M001 and 40222M005 : refer to the same marker : CDP number 7086 and 7885 : also refer to the same marker 13.03.08.01 Eccentricities Between Other Monuments on Site From: Monument Name : MLRS Mark 7080 1988 DOMES Number : 40442M006 CDP Number : 7080 To: Monument Name : Mobile VLBI mark (Harvard RM 5 1977) DOMES Number : 40442M009 CDP Number : 7900 Differential Components (ITRS) dx [m]: 5793.092 +- 0.010 dy [m]: -3661.249 +- 0.012 dz [m]: -4457.763 +- 0.010 Date Measured : 1999-06-01 Determined by : ATSC Additional Information : 13.03.09.01 Eccentricities Between Other Monuments on Site From: Monument Name : MLRS Mark 7080 1988 DOMES Number : 40442M006 CDP Number : 7080 To: Monument Name : SLR Mark 7897 DOMES Number : 40442M010 CDP Number : 7897 Differential Components (ITRS) dx [m]: -779.689 +- 0.003 dy [m]: -322.840 +- 0.007 dz [m]: -776.535 +- 0.005 Date Measured : 1999-06-01 Determined by : ATSC Additional Information : NAIL IN PAVEMENT, used : for TLRS-1 Back to top 14. Local Events Possibly Affecting Computed Position 14.01 Date : 2019-09-12 00:00 UT Event : Lightning strikes Additional Information : Lightning disabled several MLRS subsystems. : This marks the permanent end of MLRS : operations. Back to top 15. On-Site, Point of Contact Agency Information Agency : MLRS/ McDonald Observatory Mailing Address : 9 Lunar Cir : McDonald Obs : TX 79734, USA Website : Primary Contact Contact Name : Jerry Wiant Telephone (primary) : (432) 426-3668 Telephone (secondary) : (432) 426-3263 Fax : NA E-mail : jerryrw@utexas.edu Secondary Contact Contact Name : Peter Shelus Telephone (primary) : (512) 497-6250 Telephone (secondary) : Fax : E-mail : pjs@csr.utexas.edu Tertiary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : Back to top 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 : Rivers Lamb Telephone (primary) : 301-286-1128 Telephone (secondary) : Fax : E-mail : rivers.lamb@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 : Back to top 17. More Information URL for More Information : http://www.csr.utexas.edu/mlrs/mlrs.html Hardcopy on File Site Map : YES Site Diagram : YES Horizon Mask : YES Monument Description : YES Site Pictures : YES Additional Information : Back to top
McDonald: Meteorological data
type | for the past year | since 2000 |
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Temp. | Humid. | |
Pres. |
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McDonald: LAGEOS performance
type | for the past year | since 2000 |
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RMS | ||
Cal RMS | ||
Sys Dly | ||
Obs per Nrm Pt |
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Fullrate Obs per Pass |
no information | no information |
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McDonald: Satellite Information (as a function of local time and satellite range)
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