PKDB Site Information Form (site log)
     BARD Continuously Operating Reference Station
     See Instructions at:
       ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt

0.   Form

     Prepared by (full name)  : Mario Aranha
     Date Prepared            : 2020-07-24
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : pkdb_20150819.log
      Modified/Added Sections : 1, 3.6, 3.7, 11


1.   Site Identification of the GNSS Monument

     Site Name                : Bear Valley Ranch, Parkfield, CA
     Four Character ID        : PKDB
     Monument Inscription     : 
     IERS DOMES Number        : 
     CDP Number               : 
     Monument Description     : 
       Height of the Monument : 
       Monument Foundation    : 
       Foundation Depth       : 
     Marker Description       : 
     Date Installed           : 1996-09-20T19:55Z
     Geologic Characteristic  : BEDROCK
       Bedrock Type           : 
       Bedrock Condition      :
       Fracture Spacing       :
       Fault zones nearby     : 
         Distance/activity    : 
     Additional Information   : BARD - Bay Area Regional Deformation Array.
                              :  Reinforced concrete monument, approximately
                              :  1m high. Monument is fastened to underlying
                              :  rock with cemented reinforcing rods.
                              :  Threaded 5/8" rod cemented about 0.8m deep
                              :  into concrete. Antenna threads onto
                              :  rod. Mark is a virtual reference point
                              :  in the center of the rod at the top
                              :  of washer epoxied nearest parapet.

2.   Site Location Information

     City or Town             : North of Parkfield
     State or Province        : California
     Country                  : USA
     Tectonic Plate           : Pacific-North America plate boundary
     Approximate Position (ITRF)
       X coordinate (m)       : -2627226.5548
       Y coordinate (m)       : -4452757.9484
       Z coordinate (m)       : 3723620.3200
       Latitude (N is +)      : +355642.72
       Longitude (E is +)     : -1203229.76
       Elevation (m,ellips.)  : 589.9176 m
     Additional Information   : Located on private Bear Valley Ranch
                              :  adjacent to seismic vault.


3.   GNSS Receiver Information

3.1  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP01394
     Firmware Version         : 1E86
     Elevation Cutoff Setting : 
     Date Installed           : 1996-09-20T19:55Z
     Date Removed             : 1999-07-27T23:13Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.2  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP01394
     Firmware Version         : CC00
     Elevation Cutoff Setting : 
     Date Installed           : 1999-07-28T00:00Z
     Date Removed             : 2009-04-21T23:22Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.3  Receiver Type            : TRIMBLE NETRS
     Satellite System         : GPS
     Serial Number            : 4610206095
     Firmware Version         : 1.1-3
     Elevation Cutoff Setting : 
     Date Installed           : 2009-04-21T23:22Z
     Date Removed             : 2009-10-07T17:30Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.4  Receiver Type            : TRIMBLE NETRS
     Satellite System         : GPS
     Serial Number            : 4610206095
     Firmware Version         : 1.1-5
     Elevation Cutoff Setting : 
     Date Installed           : 2009-10-07T17:30Z
     Date Removed             : 2010-09-29T20:38Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.5  Receiver Type            : TRIMBLE NETRS
     Satellite System         : GPS
     Serial Number            : 4610206095
     Firmware Version         : 1.3-0
     Elevation Cutoff Setting : 
     Date Installed           : 2010-09-29T20:38Z
     Date Removed             : 2015-08-19T00:17Z 
     Temperature Stabiliz.    : 
     Additional Information   : 

3.6  Receiver Type            : TRIMBLE NETRS
     Satellite System         : GPS
     Serial Number            : 4610206095
     Firmware Version         : 1.3-2
     Elevation Cutoff Setting : 
     Date Installed           : 2015-08-19T00:17Z
     Date Removed             : 2020-07-24T19:42Z
     Temperature Stabiliz.    : 
     Additional Information   : 

3.7  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLONASS
     Serial Number            : 4502939
     Firmware Version         : 5.3.0
     Elevation Cutoff Setting : 
     Date Installed           : 2020-07-24T19:42Z
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : 
     Additional Information   : 

3.x  Receiver Type            : (A20, from rcvr_ant.tab; see instructions)
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     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            : 12616
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.0582
     Marker->ARP North Ecc(m) : 
     Marker->ARP East Ecc(m)  : 
     Alignment from True N    : 0
     Antenna Radome Type      : 
     Radome Serial Number     : 
     Antenna Cable Type       : 
     Antenna Cable Length     : 
     Date Installed           : 1996-09-20T19:55Z
     Date Removed             : 1999-07-27T23:13Z
     Additional Information   : 

4.2  Antenna Type             : ASH700936D_M    SCIS
     Serial Number            : 12616
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.0582
     Marker->ARP North Ecc(m) : 
     Marker->ARP East Ecc(m)  : 
     Alignment from True N    : 0
     Antenna Radome Type      : SCIS
     Radome Serial Number     : 
     Antenna Cable Type       : 
     Antenna Cable Length     : 
     Date Installed           : 1999-07-28T00:00Z
     Date Removed             : 
     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/BUILDLINGS/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                   : Berkeley Seismological Laboratory
     Preferred Abbreviation   : BSL
     Mailing Address          : University of California
                              : 307 McCone Hall #4760
                              : Berkeley CA 94720-4760
     Primary Contact
       Contact Name           : Mario Aranha
       Telephone (primary)    : 510-643-3898
       Telephone (secondary)  : 
       Fax                    :
       E-mail                 : bard@seismo.berkeley.edu
     Secondary Contact
       Contact Name           : Peggy Hellweg
       Telephone (primary)    : 510-643-9449
       Telephone (secondary)  :
       Fax                    :
       E-mail                 : bard@seismo.berkley.edu
     Additional Information   : http://www.seismo.berkeley.edu/bard


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   : 


13.  More Information

     Primary Data Center      : NCEDC http://www.ncedc.org
     Secondary Data Center    : 
     URL for More Information : http://www.seismo.berkeley.edu/bard
     Hardcopy on File
       Site Map               : 
       Site Diagram           : 
       Horizon Mask           :
       Monument Description   : 
       Site Pictures          :
     Additional Information   : 
     Antenna Graphics with Dimensions


    Ashtech w/Dorne-Margolin Choke Ring 

                         -----
                     /     +     \                        <-- 0.128  L2
                    |      +      |                       <-- 0.110  L1
  +--------------------------------------------------+    <-- 0.102  TCR
  |                                                  |
  |                                                  |
  |                                                  |
  |                                                  |
+-+--------------------------------------------------+-+  <-- 0.038  BCR
+-------------------+-------------+--------------------+  <-- 0.035  BGP
                    |             |
                   =|             |
                    +------x------+                       <-- 0.000  m ARP

<--                      0.381                       -->

     NOTE: Dimensions and Offsets Presumed to be same
           as for TurboRogue DM-T (tests pending)

   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