ASPA Site Information Form NGS Continuously Operating Reference Station See Instructions at: ftp://www.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Francine Coloma Date Prepared : 2019-04-26 Report Type : Updated If Update: Previous Site Log : aspa_20150323.log Modified/Added Sections : 11, 12 1. Site Identification of the GNSS Monument Site Name : American Samoa Power Authority Four Character ID : ASPA Monument Inscription : IERS DOMES Number : 50503S006 CDP Number : Monument Description : CONCRETE PILLAR Height of the Monument : 6 Monument Foundation : (STEEL RODS, CONCRETE BLOCK, ROOF, etc) Foundation Depth : 2.5 Marker Description : none Date Installed : 2001-08-12T00:00Z Geologic Characteristic : BEDROCK Bedrock Type : IGNEOUS/METAMORPHIC Bedrock Condition : FRESH Fracture Spacing : (1-10 cm/11-50 cm/51-200 cm/over 200 cm) Fault zones nearby : NO Distance/activity : (multiple lines) Additional Information : The antenna is attached to a pillar via a : tribrach adaptor. The pillar is of reinforced : concrete and is 6m tall and ~0.75m wide with : an additional 2.5m deep base. : The base was dug out with a backhoe and : has ~2x2x2 frame using 1 cm thick : rebar was built with rebar attached : to bedrock. Concrete was poured to fill the : entire frame. 2. Site Location Information City or Town : Pago Pago State or Province : American Samoa Country : United States Tectonic Plate : Pacific Approximate Position (ITRF) X coordinate (m) : -6100260.096 Y coordinate (m) : -996503.510 Z coordinate (m) : -1567977.812 Latitude (N is +) : -141933.94 Longitude (E is +) : -1704320.76 Elevation (m,ellips.) : 53.7 Additional Information : ARP IGS08 POSITION (EPOCH 2005.00) : 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE 4700 Satellite System : GPS Serial Number : 0220227236 Firmware Version : 7.29 Elevation Cutoff Setting : 5 deg Date Installed : 2001-08-12 Date Removed : 2008-10-01 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.2 Receiver Type : TRIMBLE NETR5 Satellite System : GPS Serial Number : 4733K06635 Firmware Version : NP 3.50 / SP 0.00 Elevation Cutoff Setting : 5 deg Date Installed : 2008-10-01 Date Removed : 2009-06-19 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.3 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06635 Firmware Version : NP 3.50 / SP 0.00 Elevation Cutoff Setting : 5 deg Date Installed : 2009-06-19 Date Removed : 2009-08-25T19:31Z Temperature Stabiliz. : none Additional Information : Switched on GLONASS tracking : Switched off Everest Multipath 3.4 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06635 Firmware Version : 4.03 Elevation Cutoff Setting : 5 deg Date Installed : 2009-08-25T19:31Z Date Removed : 2011-01-10T18:31Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.5 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06635 Firmware Version : 4.19 Elevation Cutoff Setting : 0 deg Date Installed : 2011-01-10T18:31Z Date Removed : 2012-10-16T18:46Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.6 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06635 Firmware Version : 4.22 Elevation Cutoff Setting : 0 deg Date Installed : 2012-10-16T18:46Z Date Removed : 2014-04-11T15:15Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.7 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06635 Firmware Version : 4.41 Elevation Cutoff Setting : 0 deg Date Installed : 2014-04-11T15:15Z Date Removed : 2014-10-21T13:03Z Temperature Stabiliz. : none Additional Information : Corrected FW from 4.42 to 4.41 on 2014-apr-22 3.8 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06635 Firmware Version : 4.85 Elevation Cutoff Setting : 0 deg Date Installed : 2014-10-21T13:03Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : none Additional Information : (multiple lines) 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 : TRM33429.20+GP UNAV Serial Number : 0220238085 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : Antenna Radome Type : UNAV Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2001-08-12 Date Removed : 2008-10-01 Additional Information : radome is 15-inch clear hemispherical plastic 4.2 Antenna Type : TRM55971.00 NONE Serial Number : 30517456 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Trimble thick yellow cable Antenna Cable Length : 30 Date Installed : 2008-10-01 Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 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 5.1 Tied Marker Name : FSF 1 AS 65 ASPA 2002 Tied Marker Usage : LOCAL CONTROL Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : -1.5782 dy (m) : -27.3256 dz (m) : 46.1267 Accuracy (mm) : 4.3, 2.7, 1.6 Survey method : GPS CAMPAIGN Date Measured : 2002-08-01 Additional Information : Marker is an NGS disk set in rock outcrop in : Tafuna Village on Tutuila Island at the : American Samoa Power Authority Wastewater : Division offices. Vector is weighted average : of three 8-hr measurement sessions during : 2002-07-30 thru 2002-08-02. 5.2 Tied Marker Name : SATELLITE TRIANG STATION 022 1966 Tied Marker Usage : LOCAL CONTROL Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 311.2465 dy (m) : -845.8187 dz (m) : -603.4822 Accuracy (mm) : 9.0, 1.2, 3.0 Survey method : GPS CAMPAIGN Date Measured : 2002-08-01 Additional Information : Benchmark disk set in top of concrete monument : in the SW corner of the Weather Bureau Station : grounds in Tafuna Village, about 0.2 mile : SW of the Tafuna Airport Terminal Bldg. Tie : vector from same sessions as FSF 1 AS 65 ASPA. 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 : (if external) Effective Dates : 2001-08-12/CCYY-MM-DD Notes : (multiple lines) 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 Interference : (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 : American Samoa Power Authority Preferred Abbreviation : ASDOC Mailing Address : Tafuna Power Plant : Pago Pago, AS 96799 Primary Contact Contact Name : Francine Coloma NOAA-NGS Telephone (primary) : 303-497-3692 Telephone (secondary) : Fax : 303-497-6513 E-mail : ngs.corscollector@noaa.gov Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : NOAA-National Geodetic Survey Preferred Abbreviation : NOAA-NGS Mailing Address : NOAA, N/NGS6, SSMC3-9111 : 1315 East-West Hwy. : Silver Spring, MD 20896, USA Primary Contact Contact Name : Francine Coloma NOAA-NGS Telephone (primary) : 303-497-3692 Telephone (secondary) : Fax : 303-497-6513 E-mail : ngs.corscollector@noaa.gov Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 13. More Information Primary Data Center : ftp://geodesy.noaa.gov/cors Secondary Data Center : ftp://alt.ngs.noaa.gov/cors URL for More Information : http://geodesy.noaa.gov/CORS 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 : (multiple lines) Antenna Graphics with Dimensions TRM55971.00 / ----------------------+--------------------- \ + + + \ -------------------------------------------- / \ / \ / \-----+-----/ <-- 0.0000 ARP=BAM <-- 0.3396 -->