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McDonald: 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)    : Randall L. Ricklefs
       Preparer E-mail            : ricklefs@csr.utexas.edu
       Date Prepared              : 2014/02/04
       Report Type                : UPDATE
       Format Version             : 1.0
 
 
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  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               : (n/a)
       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.
 
 
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  2.   Site Location Information
 
       City or Town               : McDonald Observatory (near Fort Davis)
       State or Province          : Texas
       Country                    : USA
       Tectonic Plate             : North American
       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
       Additional Information     : (multiple lines)
 
 
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  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                [mm]: -0.004 +- 0.002
         East                 [mm]: -0.005 +- 0.002
         Up                   [mm]: 1.756 +- 0.002
         Date Measured            : 1988-02-10
       Date Installed             : 1988-02-10
       Date Removed               : (yyyy-mm-dd)
       Additional Information     : (multiple lines)
 
  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               : (yyyy-mm-dd)
       Additional Information     : (multiple lines)
 
  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               : (yyyy-mm-dd)
       Additional Information     : (multiple lines)
 
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  4.   Telescope Information
 
  4.01 Receiving Telescope Type   : Coude
         Aperture              [m]: 0.75
         Mount                    : XY
       Xmitting Telescope Type    : Coude
         Aperture              [m]: 0.75
       Tracking Camera Type       : TV
         Model                    : WV-1550
         Manufacturer             : Panasonic
         Field of View       [deg]: 0.025
         Minimum Magnitude   [mag]: 7
       Transmit/Receive Path      : COMMON COUDE
       Transmit/Receive Switch    : rotating disk
       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, 0.6, 0.10
       Adjustable Attenuation     : none
       Transmit Efficiency        : < 0.53
       Receive Efficiency         : < 0.38
       Date Installed             : 1981-08-03
       Date Removed               : (yyyy-mm-dd)
       Additional Information     : X and y slew rates reported as AZ, EL,
                                  : respectively. Telescope xmit and
                                  : receive efficiencies were not measured.
 
 
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  5.   Laser System Information
 
  5.01 Laser Type                 : ND:YAG
       Number of Amplifiers       : 2
       Primary Wavelength     [nm]: 1064
       Primary Maximum Energy [mJ]: not used for laser ranging
       Secondary Wavelength   [nm]: 532
       Secondary Max. Energy  [mJ]: 1500
       Xmit Energy Adjustable     : YES
       Pulse Width (FWHM)     [ps]: 200
       Max. Repetition Rate   [Hz]: 10
       Fullw. Beam Divergence  ["]: 0-20
       Final Beam Diameter     [m]: 0.75
       Eyesafe                    : NO
       Eyesafe Standard           : ANSI 136.1
       Date Installed             : 1985-02-01
       Date Removed               : 2003-08-05
       Additional Information     : divergence is adjustable
 
  5.02 Laser Type                 : ND:YAG
       Number of Amplifiers       : 2
       Primary Wavelength     [nm]: 1064
       Primary Maximum Energy [mJ]: not used for laser ranging
       Secondary Wavelength   [nm]: 532
       Secondary Max. Energy  [mJ]: 1500
       Xmit Energy Adjustable     : YES
       Pulse Width (FWHM)     [ps]: 200
       Max. Repetition Rate   [Hz]: 10
       Fullw. Beam Divergence  ["]: 0-20
       Final Beam Diameter     [m]: 0.75
       Eyesafe                    : NO
       Eyesafe Standard           : ANSI 136.1
       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
       Number of Amplifiers       : 2
       Primary Wavelength     [nm]: 1064
       Primary Maximum Energy [mJ]: not used for laser ranging
       Secondary Wavelength   [nm]: 532
       Secondary Max. Energy  [mJ]: 150
       Xmit Energy Adjustable     : YES
       Pulse Width (FWHM)     [ps]: 200
       Max. Repetition Rate   [Hz]: 10
       Fullw. Beam Divergence  ["]: 0-20
       Final Beam Diameter     [m]: 0.75
       Eyesafe                    : NO
       Eyesafe Standard           : ANSI 136.1
       Date Installed             : 2011-11-05
       Date Removed               : (yyyy-mm-dd)
       Additional Information     : Correction to previous entries. Energy
                                  : shown is now energy/pulse, not /second. 
                                  : Note - laser average power is 1.5W.
 
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  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      ["]: 6,10,12,20,35, selectable
            Date Installed        : 1990-09-25
            Date Removed          : (yyyy-mm-dd)
          Signal Processing       : CFD
            Manufacturer          : Tennelec
            Model                 : 454
            Date Installed        : 1986-10-26
            Date Removed          : (yyyy-mm-dd)
            Amplitude Measurement : NO
            Return-rate Controlled: YES
            Mode of Operation     : SINGLE to multi photon
          Time of Flight Observ.  : EVENT
            Manufacturer          : EG&G
            Model                 : TD811
            Resolution        [ps]: 50 psec/channel, 4 channels
            Precision         [ps]: ~30
            Date Installed        : 1990-06-06
            Date Removed          : (yyyy-mm-dd)
          Additional Information  : The TD811, CMOS Clock, and Timer B
                                  : are used in conjunction.
                                  : Used primarily for artificial satellites
 
  6.02.02 Secondary Chain
          Wavelength          [nm]: 532
          Detector Type           : PMT
            Manufacturer          : Varian
            Model                 : VPM152S.921
            Quantum Efficiency [%]: 29
            Nominal Gain          : unknown
            Rise Time         [ps]: unknown
            Jitter (Single PE)[ps]: unknown
            Field of View      ["]: 6,10,12,20,35, selectable
            Date Installed        : 1985-10-dd
            Date Removed          : 2007-05-26
          Detector Type           : PMT
            Manufacturer          : Hamamatsu
            Model                 : R5916U-74 with Avantek amp UTC12-102M
            Quantum Efficiency [%]: 29
            Nominal Gain          : unknown
            Rise Time         [ps]: unknown
            Jitter (Single PE)[ps]: unknown
            Field of View      ["]: 6,10,12,20,35, selectable
            Date Installed        : 2007-05-26
            Date Removed          : 2013-12-14
          Signal Processing       : CFD
            Manufacturer          : Tennelec
            Model                 : 454
            Date Installed        : 1986-10-26
            Date Removed          : (yyyy-mm-dd)
            Amplitude Measurement : NO
            Return-rate Controlled: YES
            Mode of Operation     : SINGLE
          Time of Flight Observ.  : EVENT
            Manufacturer          : EG&G
            Model                 : TD811
            Resolution        [ps]: 50 psec/channel, 4 channels
            Precision         [ps]: ~30
            Date Installed        : 1990-06-06
            Date Removed          : 2007-05-26
          Additional Information  : The TD811, CMOS Clock, and Timer B
                                  : are used in conjunction. This chain 
                                  : used primarily for lunar and
                                  : some high satellites.
 
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  7.   Tracking Capabilities
 
  7.01 Satellites
         Very Low Alt (<400 km)   : NO
         Low Altitude (400-2000)  : YES
         Lageos                   : YES
         GLONASS                  : YES
         Etalon                   : YES
         GPS                      : YES
         Moon                     : YES
       Avge 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]: 50-20,000
       Beam Pointing Accuracy  ["]: 10
       Angle Encoder Resolution["]: 0.1 incremental; 0.6 absolute
       Min. Tracking Elev.   [deg]: 20; higher in north due to van
       Operation
         Months per Year          : 12
         Days per Week            : 7
         Hours per Day            : 24
         Staff per Shift          : one
         System Shared With       : nothing
         Time Allocated to SLR [%]: 100
         Remotely Controllable    : NO
       Date First Applicable      : 1981-10-01 00:00 UT
       Date Last Applicable       : (yyyy-mm-dd 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.
 
 
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  8.   Calibration
 
  8.01 Calibration Type           : REALTIME
       Target Location            : INTERNAL
       Target Type                : CORNER CUBE
       Target Structure           : telescope spider
       Target Distance         [m]: 2.8608
         Date Measured            : 1990-01-01
         Accuracy (mm)        [mm]: 2mm
         Verification             : 1993 collocation
       Return-rate Controlled     : YES
       Mode of Operation          : multi photon; single for moon
       Average Cal Interval  [min]: 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               : (yyyy-mm-dd)
 
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  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  : (multiple lines)
 
  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            : (yyyy-mm-dd)
          Additional Information  : Austron quartz is backup
 
  9.02.01 GPS Timing Rcvr Model   : TAC
          Manufacturer            : Totally Accurate Clock
          Date Installed          : 1994-09-01
          Date Removed            : 2010-08
          Additional Information  : Also have a second TAC
                                  : installed 1999-04-01
 
  9.02.02 GPS Timing Rcvr Model   : CNS
          Model                   : CNSC01
          Manufacturer            : CNS
          Date Installed          : 2010-08
          Date Removed            : (yyyy-mm-dd)
          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
 
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 10.   Preprocessing Information
 
 10.01 On-site NP Generation      : YES
       Data Screening             : IRV/lunar ephemeris+POLYNOMIAL
       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
       Date Last  Applicable      : 2005-04-18 00:00
       Additional Information     : (multiple lines)
 10.02 On-site NP Generation      : YES
       Data Screening             : CPF/lunar ephemeris+POLYNOMIAL
       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
       Date Last  Applicable      : (yyyy-mm-dd hh:mm UT)
       Additional Information     : (multiple lines)
 
 
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 11.   Aircraft Detection
 
 11.01 Detection Type             : RADAR
       Date Installed             : 1999-03-27
       Date Removed               : (yyyy-mm-dd)
       Additional Information     : (multiple lines)
 
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 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
          Date Installed          : 1991-07-01
          Calibration Interval    : as needed
          Date Removed            : 2003-05-16 20:00 UT
          Additional Information  : (multiple lines)
 
 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
          Date Installed          : 2003-05-16 20:00 UT
          Calibration Interval    : as needed
          Date Removed            : 2012-06-16 21:00 UT
          Additional Information  : (multiple lines)
 
 12.01.03 Pressure Sensor Model   : Met4
          Manufacturer            : Paroscientific
          Recording Interval      : four times per hour
          Accuracy          [mbar]: 0.1
          Height Diff to SRP   [m]: 0
          Date Installed          : 2012-06-16 21:00 UT
          Calibration Interval    : as needed
          Date Removed            : (yyyy-mm-dd hh:mm UT)
          Additional Information  : (multiple lines)
 
 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  : (multiple lines)
 
 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  : (multiple lines)
 
 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            : (yyyy-mm-dd hh:mm UT)
          Additional Information  : (multiple lines)
 
 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            : (yyyy-mm-dd hh:mm UT)
          Additional Information  : (multiple lines)
 
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 13.   Local Ties, Eccentricities, and Collocation Information
 
 13.01 Collocated Permanent Geodetic Systems
 
       GPS                        : IGS
         Date Installed           : 1993-06-01
         Date Removed             : (yyyy-mm-dd)
         Additional Information   : 
       GLONASS                    : NO
         Date Installed           : (yyyy-mm-dd)
         Date Removed             : (yyyy-mm-dd)
         Additional Information   : (multiple lines)
       DORIS                      : NO
         Date Installed           : (yyyy-mm-dd)
         Date Removed             : (yyyy-mm-dd)
         Additional Information   : (multiple lines)
       PRARE                      : NO
         Date Installed           : (yyyy-mm-dd)
         Date Removed             : (yyyy-mm-dd)
         Additional Information   : (multiple lines)
       VLBI                       : YES
         Date Installed           : see additional info.
         Date Removed             : (yyyy-mm-dd)
         Additional Information   : (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
       Gravimeter                 : NO
         Date Installed           : (yyyy-mm-dd)
         Date Removed             : (yyyy-mm-dd)
         Additional Information   : Gravimeter visit to McDonald 2.7m in 
                                  : 1970s
 
 13.02.xx Local Ties from the SRP to Other Monuments or Systems on Site
   
          Monument Name           :
          Instrumentation Type    : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/NONE)
          Instrumentation Status  : (PERMANENT/MOBILE)
          DOMES Number            : (XXXXXXXXX)
          CDP Number              : (XXXX)
          Differential Components (ITRS)
            dx                 [m]: (m +- m)
            dy                 [m]: (m +- m)
            dz                 [m]: (m +- m)
            Date Measured         : (yyyy-mm-dd)
            Determined by         :
          Date Installed          : (yyyy-mm-dd)
          Date Removed            : (yyyy-mm-dd)
          Additional Information  : (multiple lines)
 
 13.03.01 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        : (XXXX)
          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 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 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  : (multiple lines)
 
 13.03.04 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  : (multiple lines)
 
 13.03.05 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  : (multiple lines)
 
 13.03.06 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  : (multiple lines)
 
 13.03.07 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      : 40442M001/40222M005
                CDP Number        : 7086/7885
          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 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  : (multiple lines)
 
 13.03.09 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 
 
 
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 14.   Local Events Possibly Affecting Computed Position
 
 14.xx Date                       : (yyyy-mm-dd hh:mm UT)
       Event                      : (EARTHQUAKE/CONSTRUCTION/etc)
       Additional Information     : (multiple lines)
 
 
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 15.   On-Site, Point of Contact Agency Information
 
       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
         E-mail                   : jerryrw@utexas.edu
       Secondary Contact
         Contact Name             : Ken Harned
         Telephone (primary)      : (432) 426-3668
         Telephone (secondary)    : (432) 426-3263
         Fax                      : NA
         E-mail                   : harnedkt@utexas.edu
       Additional Information     : (multiple lines)
 
 
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 16.   Responsible Agency (if different from 15.)
 
       Agency                     : University of Texas/CSR
       Mailing Address            : Univ. of TX at Austin/CSR
                                  : 3925 W. Braker Lane, Suite 200
                                  : Austin, TX 78759
       Primary Contact
         Contact Name             : Peter Shelus
         Telephone (primary)      : (512) 497-6250
         Telephone (secondary)    : (512) 471-5573
         Fax                      : (512) 232-2443
         E-mail                   : pjs@csr.utexas.edu
       Secondary Contact
         Contact Name             : Randall Ricklefs
         Telephone (primary)      : (512) 924-7016
         Telephone (secondary)    : (512) 471-5573
         Fax                      : (512) 232-2443
         E-mail                   : ricklefs@csr.utexas.edu
       Additional Information     : (multiple lines)
 
 
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 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     : (multiple lines)
 
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