MGO3 Site Information Form (site log)
     International GNSS Service
     See Instructions at:
       ftp://igs.org/pub/station/general/sitelog_instr.txt

0.   Form

     Prepared by (full name)  : Tatevik Shakhbandaryan
     Date Prepared            : 2021-08-04
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : mgo3_20210420.log
      Modified/Added Sections : 3.6,3.7


1.   Site Identification of the GNSS Monument

     Site Name                : McDonald Geophysical Observatory Site
     Four Character ID        : MGO3
     Monument Inscription     : None
     IERS DOMES Number        : 40442M017
     CDP Number               : none
     Monument Description     : Short drilled braced steel monument
       Height of the Monument : 1.2 m
       Monument Foundation    : 
       Foundation Depth       : 
     Marker Description       : SCIGN mount mark
     Date Installed           : 2017-10-01T00:00Z
     Geologic Characteristic  : BEDROCK
       Bedrock Type           : 35 myo rhyolitic volcanics
       Bedrock Condition      : dense
       Fracture Spacing       : 
       Fault zones nearby     : 
         Distance/activity    : 
     Additional Information   : Three angled 1 inch diameter solid steel
                              : legs grouted in 4 ft deep holes, and welded
                              : to center leg, also in 4 ft deep hole. 


2.   Site Location Information

     City or Town             : Fort Davis
     State or Province        : Texas
     Country                  : United States of America
     Tectonic Plate           : NORTH AMERICAN
     Approximate Position (ITRF)
       X coordinate (m)       : -1330165.47701453
       Y coordinate (m)       : -5328541.96034063
       Z coordinate (m)       : 3236118.37257166
       Latitude (N is +)      : +304036.01314
       Longitude (E is +)     : -1040058.69794
       Elevation (m,ellips.)  : 1966.4
     Additional Information   : Site located at the University of Texas
                              : at Austin's McDonald Observatory near
                              : Fort Davis, Texas.
                              : Rocky Mountain Geological Province.
                              : Tertiary igneous rocks found on the
                              : surface. Due to erosion, the the soils
                              : of hills and mountains are shallow,
                              : whereas the soils of valleys and plains
                              : are deep.


3.   GNSS Receiver Information

3.1  Receiver Type            : JAVAD TRE_3 DELTA 
     Satellite System         : GPS+GLO
     Serial Number            : 02556
     Firmware Version         : 3.6.7
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-10-01T00:00Z
     Date Removed             : 2018-06-18
     Temperature Stabiliz.    : none
     Additional Information   : 

3.2  Receiver Type            : JAVAD TRE_3 DELTA
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 02332
     Firmware Version         : 3.7.2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-06-18
     Date Removed             : 2019-05-06T19:10Z
     Temperature Stabiliz.    : none
     Additional Information   :

3.3  Receiver Type            : JAVAD TRE_3 DELTA
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 02332
     Firmware Version         : 3.7.6
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-05-06T19:10Z
     Date Removed             : 2019-09-27T00:00Z
     Temperature Stabiliz.    : none
     Additional Information   : 

3.4  Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 01704
     Firmware Version         : 3.7.6
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-09-27T00:00Z
     Date Removed             : 2020-04-29T18:15Z
     Temperature Stabiliz.    : none
     Additional Information   : 

3.5  Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 01704
     Firmware Version         : 3.7.9
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-04-29T18:15Z
     Date Removed             : 2021-03-17T22:37Z
     Temperature Stabiliz.    : none
     Additional Information   : 

3.6  Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+BDS+QZSS
     Serial Number            : 01704
     Firmware Version         : 4.0.02
     Elevation Cutoff Setting : 0
     Date Installed           : 2021-03-17T22:37Z
     Date Removed             : 2021-07-28T00:24Z
     Temperature Stabiliz.    : none
     Additional Information   : 

3.7  Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+BDS+QZSS
     Serial Number            : 01704
     Firmware Version         : 4.1.01
     Elevation Cutoff Setting : 0
     Date Installed           : 2021-07-28T00:24Z
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : none
     Additional Information   : GAL tracking disabled.

3.x  Receiver Type            : (A20, from rcvr_ant.tab; see instructions)
     Satellite System         : (GPS+GLO+GAL+BDS+QZSS+SBAS)
     Serial Number            : (A20, but note the first A5 is used in SINEX)
     Firmware Version         : (A11)
     Elevation Cutoff Setting : (deg)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)


4.   GNSS Antenna Information

4.1  Antenna Type             : JAVRINGANT_DM      SCIS
     Serial Number            : 71835
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.0083
     Marker->ARP North Ecc(m) : 0.000
     Marker->ARP East Ecc(m)  : 0.000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : SCIS
     Radome Serial Number     : N/A
     Antenna Cable Type       : Times Microwave LMR 600
     Antenna Cable Length     : 170 FT
     Date Installed           : 2017-10-01T00:00Z
     Date Removed             : 2019-09-27T00:00Z
     Additional Information   : 

4.2  Antenna Type             : JAVRINGANT_DM      SCIS
     Serial Number            : 00839
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.0083
     Marker->ARP North Ecc(m) : 0.000
     Marker->ARP East Ecc(m)  : 0.000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : SCIS
     Radome Serial Number     : N/A
     Antenna Cable Type       : Times Microwave LMR 600
     Antenna Cable Length     : 170 FT
     Date Installed           : 2019-09-27T00:00Z
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Additional Information   :

4.x  Antenna Type             : (A20, from rcvr_ant.tab; see instructions)
     Serial Number            : (A*, but note the first A5 is used in SINEX)
     Antenna Reference Point  : (BPA/BCR/XXX from "antenna.gra"; see instr.)
     Marker->ARP Up Ecc. (m)  : (F8.4)
     Marker->ARP North Ecc(m) : (F8.4)
     Marker->ARP East Ecc(m)  : (F8.4)
     Alignment from True N    : (deg; + is clockwise/east)
     Antenna Radome Type      : (A4 from rcvr_ant.tab; see instructions)
     Radome Serial Number     : 
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)


5.   Surveyed Local Ties

5.x  Tied Marker Name         : 
     Tied Marker Usage        : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc)
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : (A9)
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : (m)
       dy (m)                 : (m)
       dz (m)                 : (m)
     Accuracy (mm)            : (mm)
     Survey method            : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc)
     Date Measured            : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)


6.   Frequency Standard

6.1  Standard Type            : INTERNAL
       Input Frequency        : 5 MHz
       Effective Dates        : 2017-10-01/CCYY-MM-DD
       Notes                  : 

6.x  Standard Type            : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc)
       Input Frequency        : (if external)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)


7.   Collocation Information

7.1  Instrumentation Type     : SLR
       Status                 : PERMANENT
       Effective Dates        : 1994-11-04/CCYY-MM-DD
       Notes                  : 

7.x  Instrumentation Type     : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc)
       Status                 : (PERMANENT/MOBILE)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)


8.   Meteorological Instrumentation

8.1.x  Humidity Sensor Model  : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy (% rel h)     : (% rel h)
       Aspiration             : (UNASPIRATED/NATURAL/FAN/etc)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.2.x  Pressure Sensor Model  : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy               : (hPa)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.3.x  Temp. Sensor Model     : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy               : (deg C)
       Aspiration             : (UNASPIRATED/NATURAL/FAN/etc)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.4.x  Water Vapor Radiometer : 
       Manufacturer           : 
       Serial Number          : 
       Distance to Antenna    : (m)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.5.x  Other Instrumentation  : (multiple lines)


9.   Local Ongoing Conditions Possibly Affecting Computed Position

9.1.x  Radio Interferences    : (TV/CELL PHONE ANTENNA/RADAR/etc)
       Observed Degradations  : (SN RATIO/DATA GAPS/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)

9.2.x  Multipath Sources      : (METAL ROOF/DOME/VLBI ANTENNA/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)

9.3.x  Signal Obstructions    : (TREES/BUILDINGS/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)


10.  Local Episodic Effects Possibly Affecting Data Quality

10.x Date                     : (CCYY-MM-DD/CCYY-MM-DD)
     Event                    : (TREE CLEARING/CONSTRUCTION/etc)

11.  On-Site, Point of Contact Agency Information

     Agency                   : McDonald Observatory
     Preferred Abbreviation   : MLRS
     Mailing Address          : House 9
                              : Highway 118
                              : Fort Davis, TX
                              : USA  79734
     Primary Contact
       Contact Name           : Jerry Wiant
       Telephone (primary)    : 432-426-3668
       Telephone (secondary)  : 
       Fax                    : 432-426-3803
       E-mail                 : jrw@astro.as.utexas.edu
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : 


12.  Responsible Agency (if different from 11.)

     Agency                   : Jet Propulsion Laboratory
     Preferred Abbreviation   : JPL
     Mailing Address          : 4800 Oak Grove Drive
                              : Pasadena,  CA
                              : USA   91109
     Primary Contact
       Contact Name           : David A. Stowers
       Telephone (primary)    : 818-354-7055
       Telephone (secondary)  : 
       Fax                    : 818-393-4965
       E-mail                 : dstowers@jpl.nasa.gov
     Secondary Contact
       Contact Name           : UNAVCO Network Engineer
       Telephone (primary)    : 303-381-7500
       Telephone (secondary)  : 
       Fax                    : 303-381-7451
       E-mail                 : ggn-ops@ls.unavco.org
     Additional Information   : 

13.  More Information

     Primary Data Center      : JPL (ODC-Operational Data Center)
     Secondary Data Center    : CDDIS (GDC-Global Data Center)
     URL for More Information : 
     Hardcopy on File
       Site Map               : 
       Site Diagram           : 
       Horizon Mask           : 
       Monument Description   : 
       Site Pictures          : 
     Additional Information   : 
     Antenna Graphics with Dimensions

JAVRINGANT_DM

                       ---------
                     /           \
                    |             |
  +-------------------------------------------------+     <--  0.1015  TCR
  |                                                 |
  |                                                 |
  |                                                 |
  |                                                 |
+-+-------------------------------------------------+-+   <--  0.0379
+-------------------+-------------+-------------------+   <--  0.0345  BCR
                    |             |
                    |             |
                    +------x------+                       <--  0.0000  BPA=ARP
                                                                       NOM=NRP
<--                      0.3800                     -->


 ARP: Antenna Reference Point
   L1 : L1 Phase Center                   L2 : L2 Phase Center
   TCR: Top of Chokering                  BCR: Bottom of Chokering
   TGP: Top of Ground Plane               BGP: Bottom of Ground Plane
   TPA: Top of Preamplifier               BPA: Bottom of Preamplifier
   TOP: Top of Pole                        

All dimensions are in meters.