GUAM00GUM 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) : Tatevik Shakhbandaryan Date Prepared : 2023-03-06 Report Type : UPDATE If Update: Previous Site Log : guam_20211207.log Modified/Added Sections : 3.20,3.21 1. Site Identification of the GNSS Monument Site Name : USGS Guam Observatory Four Character ID : GUAM Monument Inscription : GUMO 1992 Lamont-Doherty Earth Observatory IERS DOMES Number : 50501M002 CDP Number : None Monument Description : ROOF MOUNT Height of the Monument : Monument Foundation : Foundation Depth : Marker Description : Date Installed : 1992-01-01T00:00Z Geologic Characteristic : Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : Existing monument installed on roof of : Observatory was chosen due to logistical : reasons, and to get the site installed : quickly, with the trade off being higher : than normal multipath. 2. Site Location Information City or Town : Dededo State or Province : Country : Guam Tectonic Plate : PACIFIC Approximate Position (ITRF) X coordinate (m) : -5071312.6574 Y coordinate (m) : 3568363.6347 Z coordinate (m) : 1488904.4020 Latitude (N is +) : +133521.59 Longitude (E is +) : +1445206.09 Elevation (m,ellips.) : 201.914 Additional Information : Receiver position 1/20/95 3. GNSS Receiver Information 3.1 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T360 Firmware Version : 3.0 -1994/10/10 17:01:54 Elevation Cutoff Setting : 4 deg Date Installed : 1995-01-20T00:00Z Date Removed : 1995-08-01T00:00Z Temperature Stabiliz. : none Additional Information : 3.2 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T332 Firmware Version : 3.2 Elevation Cutoff Setting : 4 deg Date Installed : 1995-08-01T00:00Z Date Removed : 1996-12-10T00:00Z Temperature Stabiliz. : none Additional Information : 3.3 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T397 Firmware Version : 3.2.32.4 Elevation Cutoff Setting : 4 deg Date Installed : 1996-12-10T00:00Z Date Removed : 1999-05-20T00:00Z Temperature Stabiliz. : none Additional Information : 3.4 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T397 Firmware Version : 3.2.32.8 Elevation Cutoff Setting : 4 deg Date Installed : 1999-05-20T00:00Z Date Removed : 2000-04-26T00:00Z Temperature Stabiliz. : none Additional Information : 3.5 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP019990508 Firmware Version : CC00 Elevation Cutoff Setting : 4 deg Date Installed : 2000-04-26T00:00Z Date Removed : 2008-11-20T23:59Z Temperature Stabiliz. : none Additional Information : 3.6 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : IR2200722004 Firmware Version : CQ00 Elevation Cutoff Setting : 4 deg Date Installed : 2008-11-21T02:16Z Date Removed : 2013-11-20T22:00Z Temperature Stabiliz. : none Additional Information : 3.7 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO Serial Number : 01513 Firmware Version : 3.5.3 Elevation Cutoff Setting : 4 deg Date Installed : 2013-11-21T00:00Z Date Removed : 2014-01-07T17:15Z Temperature Stabiliz. : none Additional Information : 3.8 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO Serial Number : 01513 Firmware Version : 3.5.4 Elevation Cutoff Setting : 4 deg Date Installed : 2014-01-07T17:30Z Date Removed : 2014-03-17T14:10Z Temperature Stabiliz. : none Additional Information : 3.9 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO Serial Number : 01513 Firmware Version : 3.5.5 Elevation Cutoff Setting : 0 deg Date Installed : 2014-03-17T14:15Z Date Removed : 2014-10-21T15:30Z Temperature Stabiliz. : none Additional Information : see section 10.2 3.10 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO Serial Number : 01513 Firmware Version : 3.5.7b0 Elevation Cutoff Setting : 0 deg Date Installed : 2014-10-21T16:15Z Date Removed : 2015-01-20T23:38Z Temperature Stabiliz. : none Additional Information : see section 10.2 3.11 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO Serial Number : 01513 Firmware Version : 3.5.8b0-12-52e9 Elevation Cutoff Setting : 0 deg Date Installed : 2015-01-20T23:39Z Date Removed : 2016-02-22T19:33Z Temperature Stabiliz. : none Additional Information : see section 10.2 3.12 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO Serial Number : 01513 Firmware Version : 3.6.4 Elevation Cutoff Setting : 0 deg Date Installed : 2016-02-22T19:41Z Date Removed : 2018-08-28T22:31Z Temperature Stabiliz. : none Additional Information : see section 10.2 3.13 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 01513 Firmware Version : 3.7.2 Elevation Cutoff Setting : 0 deg Date Installed : 2018-08-28T22:34Z Date Removed : 2018-10-30T21:45Z Temperature Stabiliz. : none Additional Information : 3.14 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 01513 Firmware Version : 3.7.3p1 Elevation Cutoff Setting : 0 deg Date Installed : 2018-10-30T22:00Z Date Removed : 2018-12-27T16:25Z Temperature Stabiliz. : none Additional Information : 3.15 Receiver Type : JAVAD TRE_G3TH DELTA Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 01513 Firmware Version : 3.7.4 Elevation Cutoff Setting : 0 deg Date Installed : 2018-12-27T16:45Z Date Removed : 2019-08-29T00:00Z Temperature Stabiliz. : none Additional Information : 3.16 Receiver Type : JAVAD TRE_3 DELTA Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 02327 Firmware Version : 3.7.6 Elevation Cutoff Setting : 0 deg Date Installed : 2019-08-29T00:00Z Date Removed : 2020-03-10T18:51Z Temperature Stabiliz. : none Additional Information : 3.17 Receiver Type : JAVAD TRE_3 DELTA Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 02327 Firmware Version : 3.7.9 Elevation Cutoff Setting : 0 deg Date Installed : 2020-03-10T18:51Z Date Removed : 2021-03-04T17:14Z Temperature Stabiliz. : none Additional Information : 3.18 Receiver Type : JAVAD TRE_3 DELTA Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 02327 Firmware Version : 4.0.02 Elevation Cutoff Setting : 0 deg Date Installed : 2021-03-04T17:14Z Date Removed : 2021-07-27T02:45Z Temperature Stabiliz. : none Additional Information : 3.19 Receiver Type : JAVAD TRE_3 DELTA Satellite System : GPS+GLO+GAL+BDS+QZSS+IRNSS Serial Number : 02327 Firmware Version : 4.1.01 Elevation Cutoff Setting : 0 deg Date Installed : 2021-07-27T02:45Z Date Removed : 2021-11-15T22:00Z Temperature Stabiliz. : none Additional Information : 3.20 Receiver Type : SEPT POLARX5 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 3025501 Firmware Version : 5.4.0-patch1 Elevation Cutoff Setting : 0 deg Date Installed : 2021-11-26T17:00Z Date Removed : 2023-03-06T21:26Z Temperature Stabiliz. : Additional Information : 3.21 Receiver Type : SEPT POLARX5 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 3025501 Firmware Version : 5.5.0 Elevation Cutoff Setting : 0 deg Date Installed : 2023-03-06T21:26Z 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 : AOAD/M_T JPLA Serial Number : 481 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0614 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : Antenna Radome Type : JPLA Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 1995-01-20T00:00Z Date Removed : 2006-05-17T07:00Z Additional Information : 4.2 Antenna Type : ASH701945B_M JPLA Serial Number : CR519992101 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0614 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : Antenna Radome Type : JPLA Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 2006-05-22T00:00Z Date Removed : 2019-03-07T00:58Z Additional Information : 4.3 Antenna Type : JAVRINGANT_DM SCIS Serial Number : 00842 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.6229 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 : LMR400 Antenna Cable Length : 11m m Date Installed : 2019-03-07T00:58Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : Antenna height increased with installation of : ring adapter, rod, and SCIGN mount. Previous : height was 0.0614m. New height is 0.6229m. : After removal of the previous antenna, it was : discovered the pin was offset from the center : divot, which created a secondary, : unintentional, divot in the brass USGS marker : during previous antenna install. Offset was : 1.0mm +/- 0.2mm @ 332 (+/- 2) deg TN relative : to center divot. New antenna installed such : that the pin sits in the proper, center, divot. 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 : 1995-01-20/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 : DORIS/IDA station nearby Status : PERMANENT Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : Doris/IDA station nearby ( 5 Km ) at : Mt. Santa Rosa Station 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 10.1 Date : 2011-09-08/2011-09-08 Event : Transitioned from .soc to .ash data types. For : soc data typed used soc2rnx to do the : conversion to RINEX data. For ash data types : using teqc directly to do the conversion to : RINEX. 10.2 Date : 2014-03-17/2014-03-17 Event : l1center offset to 1573 MHz. : SBAS turned off. : modified elevation mask for measurements : output to be 0 degrees on all tcp ports [a-e]. 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : United States Department of the Interior Preferred Abbreviation : DOI Mailing Address : United States Geological Survey : Guam Seismic Observatory : P.O. Box 8001, MOU #3 : Dededo , Guam - 96912-8001 : United States Department of the Interior : Guam Seismic Observatory : Potts Junction : Dededo, Guam 96912-8001 Primary Contact Contact Name : Kat Uchima Telephone (primary) : 671-637-7714 Telephone (secondary) : Fax : E-mail : kuchima@gmail.com 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@postal.unavco.org Additional Information : 13. More Information Primary Data Center : JPL Secondary Data Center : CDDIS URL for More Information : Hardcopy on File Site Map : Site Diagram : (Y) Horizon Mask : (Y) Monument Description : (Y) Site Pictures : (Y) 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 --> ASH701945B_M +-------+ / + \ <-- 0.1280 L2 | + | <-- 0.1100 L1 +-----------------+-------------+------------------+ <-- 0.1006 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0376 +-------------------+-------------+--------------------+ <-- 0.0346 BCR | | | | +------x------+ <-- 0.0000BPA=ARP <-- 0.3794 --> AOAD/M_T ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 +-------------------+-------------+--------------------+ <-- 0.035 BCR | | =| | +------x------+ <-- 0.000 BPA=ARP <-- 0.381 --> 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.