FARB 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) : Ingrid Johanson
Date Prepared : 2015-02-02
Report Type : UPDATE
If Update:
Previous Site Log : farb_20140116.log
Modified/Added Sections : 4.3
1. Site Identification of the GNSS Monument
Site Name : Farallon Islands
Four Character ID : FARB
Monument Inscription :
IERS DOMES Number :
CDP Number :
Monument Description :
Height of the Monument :
Monument Foundation :
Foundation Depth :
Marker Description :
Date Installed : 1994-01-27T00:00Z
Geologic Characteristic : BEDROCK
Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY)
Bedrock Condition : (FRESH/JOINTED/WEATHERED)
Fracture Spacing : (1-10 cm/10-50 cm/50-200 cm/over 200 cm)
Fault zones nearby :
Distance/activity :
Additional Information : Monument drilled and cemented
: into rock outcrop. Threaded 5/8" rod
: cemented about 0.8m deep into rock with
: stainless steel collar at surface.
: Antenna threads onto rod in reproducible
: manner. Pre 22Mar97, mark is top center of rod;
: Post 21Mar97, mark is virtual center of rod at
: top of washer epoxied between two nuts on rod.
: Vertical distance between two marks is unknown.
2. Site Location Information
City or Town : Pacific Ocean, northwest of San Francisco
State or Province : California
Country : USA
Tectonic Plate : Pacific
Approximate Position (ITRF)
X coordinate (m) : -2752135.6945
Y coordinate (m) : -4237793.7247
Z coordinate (m) : 3878892.8650
Latitude (N is +) : +374149.92
Longitude (E is +) : -1230002.88
Elevation (m,ellips.) : -21.6987 m
Additional Information : On the Southeast Farallon Island
: Farallon National Wildlife Refuge
: U.S. Fish and Wildlife Service
3. GNSS Receiver Information
3.1 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : 700724A02270
Firmware Version : 1C01
Elevation Cutoff Setting :
Date Installed : 1994-01-27T00:00Z
Date Removed : 1996-05-18T00:00Z
Temperature Stabiliz. :
Additional Information :
3.2 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : 700724B01827
Firmware Version : 1E86
Elevation Cutoff Setting :
Date Installed : 1996-05-18T00:00Z
Date Removed : 1997-03-15T00:00Z
Temperature Stabiliz. :
Additional Information : Date Remove changed from 1997-03-21
: on 8/21/14 to match time of offset in time series
3.3 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : LP01046
Firmware Version : 1E95
Elevation Cutoff Setting :
Date Installed : 1997-03-15T00:00Z
Date Removed : 1998-03-13T00:00Z
Temperature Stabiliz. :
Additional Information : Date Installed changed from 1997-03-22
: on 8/21/14 to match time of offset in time series
3.4 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : LP01046
Firmware Version : 1F60
Elevation Cutoff Setting :
Date Installed : 1998-03-13T00:00Z
Date Removed : 1999-03-12T21:31Z
Temperature Stabiliz. :
Additional Information : NONE
3.5 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : LP01046
Firmware Version : CB00
Elevation Cutoff Setting :
Date Installed : 1999-03-12T22:09Z
Date Removed : 1999-08-20T16:21Z
Temperature Stabiliz. :
Additional Information :
3.6 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : 02283
Firmware Version : CC00
Elevation Cutoff Setting :
Date Installed : 1999-08-22T14:30Z
Date Removed : 2000-01-26T21:02Z
Temperature Stabiliz. :
Additional Information :
3.7 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : LP019991614
Firmware Version : CC00
Elevation Cutoff Setting :
Date Installed : 2000-01-26T21:02Z
Date Removed : 2008-11-18T19:30Z
Temperature Stabiliz. :
Additional Information : Rinex headers before 13-Nov-2000 have
: incorrect receiver serial number 02283.
3.8 Receiver Type : TRIMBLE NETRS
Satellite System : GPS
Serial Number : 4706128339
Firmware Version : 1.1-3
Elevation Cutoff Setting :
Date Installed : 2008-11-18T19:30Z
Date Removed : 2009-10-07T18:37Z
Temperature Stabiliz. :
Additional Information :
3.9 Receiver Type : TRIMBLE NETRS
Satellite System : GPS
Serial Number : 4706128339
Firmware Version : 1.1-5
Elevation Cutoff Setting :
Date Installed : 2009-10-07T18:37Z
Date Removed : 2010-09-30T19:08Z
Temperature Stabiliz. :
Additional Information :
3.10 Receiver Type : TRIMBLE NETRS
Satellite System : GPS
Serial Number : 4706128339
Firmware Version : 1.3-0
Elevation Cutoff Setting :
Date Installed : 2010-09-30T19:08Z
Date Removed :
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 : ASH700228D NONE
Serial Number : 700228D2115
Antenna Reference Point : Bottom of tripod mount collar.
Marker->ARP Up Ecc. (m) : -0.015
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 : 1994-01-27T00:00Z
Date Removed : 1997-03-21T00:00Z
Additional Information : This antenna height is from a different
: reference mark.
4.2 Antenna Type : ASH700936C_M UNAV
Serial Number : 12733
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0333
Marker->ARP North Ecc(m) :
Marker->ARP East Ecc(m) :
Alignment from True N : 0
Antenna Radome Type : UNAV
Radome Serial Number :
Antenna Cable Type :
Antenna Cable Length :
Date Installed : 1997-03-22T00:00Z
Date Removed : 2011-12-05T00:00Z
Additional Information : Radome is Unavco clear spherical dome
4.3 Antenna Type : ASH700936C_M SCIS
Serial Number : 12733
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0333
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 : 2011-12-05T00:00Z
Date Removed :
Additional Information : Radome was erroneously recorded as SCIT
: until 2015-02-02
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 :
Effective Dates : 1994-01-27/
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.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
: 215 McCone Hall
: Berkeley CA 94720-4760
Primary Contact
Contact Name : Ingrid Johanson
Telephone (primary) : 510.642.3977
Telephone (secondary) :
Fax : 510.643.5811
E-mail : bard@seismo.berkeley.edu
Secondary Contact
Contact Name : Doug Neuhauser
Telephone (primary) : 510.642.3977
Telephone (secondary) : 510.642.0931
Fax : 510.643.5811
E-mail : bard@seismo.berkley.edu
Additional Information :
12. Responsible Agency (if different from 11.)
Agency :
Preferred Abbreviation :
Mailing Address : (multiple lines)
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 http://www.ncedc.org
Secondary Data Center :
URL for More Information : http://www.ncedc.org/bard
Hardcopy on File
Site Map :
Site Diagram :
Horizon Mask :
Monument Description :
Site Pictures : Yes
Additional Information :
Antenna Graphics with Dimensions
a) 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