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

0.   Form

     Prepared by (full name)  : Mario Aranha
     Date Prepared            : 2024-11-07
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : saob_20241101.log
      Modified/Added Sections : 2 


1.   Site Identification of the GNSS Monument

     Site Name                : San Andreas Geophysical Observatory
     Four Character ID        : SAOB
     Monument Inscription     : 
     IERS DOMES Number        : 49379M001
     CDP Number               : 
     Monument Description     : CONCRETE PILLAR
       Height of the Monument : 
       Monument Foundation    : 
       Foundation Depth       : 
     Marker Description       : 
     Date Installed           : 1997-08-21T21:05Z
     Geologic Characteristic  : BEDROCK
       Bedrock Type           : 
       Bedrock Condition      : 
       Fracture Spacing       : 
       Fault zones nearby     : 
         Distance/activity    : 
     Additional Information   : Reinforced concrete monument, approximately 1m
                              : high. Monument is fastened to underlying rock
                              : with cemented reinforcing rods. Threaded 5/8"
                              : rod is cemented about 0.8m deep into concrete.
                              : Antenna threads onto rod in reproducible manner.
                              : Mark is top of washer at center of rod.


2.   Site Location Information

     City or Town             : Rural, near Hollister
     State or Province        : California
     Country                  : USA
     Tectonic Plate           : Pacific-North America plate boundary
     Approximate Position (ITRF)
       X coordinate (m)       : -2669035.8509
       Y coordinate (m)       : -4364494.8421
       Z coordinate (m)       : 3796775.9955
       Latitude (N is +)      : +364555.11
       Longitude (E is +)     : -1212649.89
       Elevation (m,ellips.)  : 359.9478
     Additional Information   : X,Y,Z is IGb14 realization of ITRF14 reference
                              : frame, 2024.6066 reference epoch.


3.   GNSS Receiver Information

3.1  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP01384
     Firmware Version         : 1E95
     Elevation Cutoff Setting : 
     Date Installed           : 1997-08-21T21:05Z
     Date Removed             : 1998-08-26T00:00Z
     Temperature Stabiliz.    : 
     Additional Information   : Receiver removal time uncertain

3.2  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP01379
     Firmware Version         : 1E95
     Elevation Cutoff Setting : 
     Date Installed           : 1998-08-26T00:00Z
     Date Removed             : 1999-07-15T18:49Z
     Temperature Stabiliz.    : 
     Additional Information   : Receiver installation time uncertain

3.3  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP01379
     Firmware Version         : CC00
     Elevation Cutoff Setting : 
     Date Installed           : 1999-07-15T18:49Z
     Date Removed             : 2002-04-21T00:00Z
     Temperature Stabiliz.    : 
     Additional Information   : Configuration Change: Receiver Stolen

3.4  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP02283
     Firmware Version         : CC00
     Elevation Cutoff Setting : 
     Date Installed           : 2002-05-17T00:00Z
     Date Removed             : 2009-04-30T23:30Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.5  Receiver Type            : TRIMBLE NETRS
     Satellite System         : GPS
     Serial Number            : 4706128333
     Firmware Version         : 1.1-3
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2009-04-30T23:30Z
     Date Removed             : 2009-05-02T22:18Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.6  Receiver Type            : TRIMBLE NETRS
     Satellite System         : GPS
     Serial Number            : 4706128333
     Firmware Version         : 1.1-5
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2009-05-02T22:18Z
     Date Removed             : 2010-09-29T20:51Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.7  Receiver Type            : TRIMBLE NETRS
     Satellite System         : GPS
     Serial Number            : 4706128333
     Firmware Version         : 1.2-0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2010-09-29T20:51Z
     Date Removed             : 2012-06-29T17:06Z
     Temperature Stabiliz.    : 
     Additional Information   : Configuration Change: firmware was previously
                              : listed as 1.3-0. Fixed 6/25/12

3.8  Receiver Type            : TRIMBLE NETRS
     Satellite System         : GPS
     Serial Number            : 4706128333
     Firmware Version         : 1.3-0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2012-06-29T17:06Z
     Date Removed             : 2015-09-01T00:00Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.9  Receiver Type            : TRIMBLE NETRS
     Satellite System         : GPS
     Serial Number            : 4706128333
     Firmware Version         : 1.3-2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-09-01T00:00Z
     Date Removed             : 2021-03-17T00:00Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.10 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO
     Serial Number            : 3052344
     Firmware Version         : 5.4.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-03-17T00:00Z
     Date Removed             : 2022-11-30T00:00Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.11 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO
     Serial Number            : 3052344
     Firmware Version         : 5.5.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2022-11-30T00:00Z
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : 
     Additional Information   : 

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             : ASH700936D_M    NONE
     Serial Number            : 12657
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.0590
     Marker->ARP North Ecc(m) : 
     Marker->ARP East Ecc(m)  : 
     Alignment from True N    : 0
     Antenna Radome Type      : NONE
     Radome Serial Number     : 
     Antenna Cable Type       : 
     Antenna Cable Length     : 
     Date Installed           : 1997-08-21T21:05Z
     Date Removed             : 1999-07-15T23:29Z
     Additional Information   : 

4.2  Antenna Type             : ASH700936D_M    SCIT
     Serial Number            : 12657
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.1266
     Marker->ARP North Ecc(m) : 
     Marker->ARP East Ecc(m)  : 
     Alignment from True N    : 0
     Antenna Radome Type      : SCIT
     Radome Serial Number     : 00192
     Antenna Cable Type       : 
     Antenna Cable Length     : 
     Date Installed           : 1999-07-15T23:29Z
     Date Removed             : 2021-10-22T20:47Z
     Additional Information   : Configuration Change: SCIGN Adaptor 0139 HI from
                              : previous refernce mark Reference mark to base =
                              : 98.6 mm Base of adapter to SCIGN mark = 19.685
                              : mm SCIGN mark to BPA = 8.3mm Radome SCIGN Tall
                              : 00192

4.3  Antenna Type             : SEPCHOKE_B3E6   SPKE
     Serial Number            : 5183
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.0083
     Marker->ARP North Ecc(m) : 
     Marker->ARP East Ecc(m)  : 
     Alignment from True N    : 0
     Antenna Radome Type      : SPKE
     Radome Serial Number     : 
     Antenna Cable Type       : 
     Antenna Cable Length     : 
     Date Installed           : 2021-10-22T20:47Z
     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.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.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                   : UC Berkeley
     Preferred Abbreviation   : BARD
     Mailing Address          : University of California, Berkeley, 307 McCone
                              : Hall #4760, Berkeley CA 94720-4760
     Primary Contact
       Contact Name           : Mario Aranha
       Telephone (primary)    : 510-643-3898
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : mario@seismo.berkeley.edu
     Secondary Contact
       Contact Name           : Jonah Merritt
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : jmerritt@berkeley.edu
     Additional Information   : (multiple lines)

12.  Responsible Agency (if different from 11.)

     Agency                   : 
     Preferred Abbreviation   : 
     Mailing Address          : 
     Primary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : (multiple lines)

13.  More Information

     Primary Data Center      : NCEDC
     Secondary Data Center    : 
     URL for More Information : https://ncedc.org
     Hardcopy on File
       Site Map               : (Y or URL)
       Site Diagram           : (Y or URL)
       Horizon Mask           : (Y or URL)
       Monument Description   : (Y or URL)
       Site Pictures          : (Y or URL)
     Additional Information   : 
     Antenna Graphics with Dimensions

     https://files.igs.org/pub/station/general/antenna.gra