| Site Information |
| Site Name | Code | Subnet | Type | Monument Installed | Data Archived |
| GRP4 | GRP4 | PANGA | (Y) | 2006-08-07T00 | PANGA |
| Site Location Information |
| City | State | Latitude | Longitude | Elevation |
| Arlington | WA | 48.1946 | -122.1272 | |
| Approximate ITRF Position X,Y,Z (m) |
| X | Y | Z |
| -2265270.2203 | -3607362.1786 | 4731357.4788 |
| Current Receiver and Antenna Type |
| Receiver | Antenna |
| LEICA GRX1200PRO | LEIAX1202 NONE |
| Data Acquisition for CGPS |
| Telemetry | Real-Time | SGM Dist | Onboard PPP | Last Data |
| NA | N | n/a | N | 20120723 |
| Receiver Upgrades and Firmware Updates |
| Date Installed | Time UTC | Receiver Type |
| 2006-08-07 | 00:00:00 | LEICA GRX1200PRO |
| Antenna and Domes |
| Date Installed | Time UTC | Antenna Type & Dome |
| 2006-08-07 | 00:00:00 | LEIAX1202 NONE |
| DD=Daily Download, MD=Manual Download, DC=Decommissioned, NA=Not Available |