GRP4 Site Information Form (site log) International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Rex Flake Date Prepared : 2014-09-04 Report Type : If Update: Previous Site Log : Modified/Added Sections : 1. Site Identification of the GNSS Monument Site Name : GRP4 Four Character ID : GRP4 Monument Inscription : IERS DOMES Number : CDP Number : Monument Description : Height of the Monument : Monument Foundation : Foundation Depth : Marker Description : Date Installed : 2006-08-07T00:00z Geologic Characteristic : Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : 2. Site Location Information City or Town : Arlington State or Province : WA Country : Tectonic Plate : North America Approximate Position (ITRF) X coordinate (m) : -2265270.2203 Y coordinate (m) : -3607362.1786 Z coordinate (m) : 4731357.4788 Latitude (N is +) : 48.1946 Longitude (E is +) : -122.1272 Elevation (m,ellips.) : Additional Information : Velocity X (m/yr) = 0.000000 : Velocity Y (m/yr) = 0.000000 : Velocity Z (m/yr) = 0.000000 : Reference Time = 2000-01-01 3. GNSS Receiver Information 3.1 Receiver Type : LEICA GRX1200PRO Satellite System : GPS Serial Number : 460423 Firmware Version : Elevation Cutoff Setting : Date Installed : 2006-08-07T00:00z Date Removed : Temperature Stabiliz. : Additional Information : 4. GNSS Antenna Information 4.1 Antenna Type : LEIAX1202 NONE Serial Number : Antenna Reference Point : 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 : Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 2006-08-07T00:00z Date Removed : Additional Information : 5. Surveyed Local Ties 5.x Tied Marker Name : Tied Marker Usage : Tied Marker CDP Number : Tied Marker DOMES Number : Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : Survey method : Date Measured : Additional Information : 6. Frequency Standard 6.1 Standard Type : Input Frequency : Effective Dates : Notes : 7. Collocation Information 7.1 Instrumentation Type : Status : Effective Dates : Notes : 8. Meteorological Instrumentation 8.1.1 Humidity Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : Accuracy (% rel h) : Aspiration : Height Diff to Ant : Calibration date : Effective Dates : Notes : 8.2.1 Pressure Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : Accuracy : Height Diff to Ant : Calibration date : Effective Dates : Notes : 8.3.1 Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : Accuracy : Aspiration : Height Diff to Ant : Calibration date : Effective Dates : Notes : 8.4.1 Water Vapor Radiometer : Manufacturer : Serial Number : Distance to Antenna : Height Diff to Ant : Calibration date : Effective Dates : Notes : 8.5.1 Other Instrumentation : 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.1 Radio Interferences : Observed Degradations : Effective Dates : Additional Information : 9.2.1 Multipath Sources : Effective Dates : Additional Information : 9.3.1 Signal Obstructions : Effective Dates : Additional Information : 10. Local Episodic Effects Possibly Affecting Data Quality 10.1 Date : Event : 11. On-Site, Point of Contact Agency Information 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 : 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 : Secondary Data Center : URL for More Information : Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : Station ID = 414 RINEX Comment : Rinex Header Coords are Approx : Refer to WSRN Website : Ellipsoid Values to ARP Antenna Graphics with Dimensions