Surveyors, GIS users, engineers, scientists and others who collect GPS/GNSS data use NCN data acquired at fiducial geodetic control stations. People use the data to improve the precision of their positions and align their work within the National Spatial Reference System (NSRS). NCN enhanced post-processed coordinate accuracies can approach a few centimeters, both horizontally and vertically.
The CORS network is a cooperative effort involving government, academic and private organizations. The sites are independently owned and operated. Each agency shares its data with NGS. NGS analyzes and distributes the data free of charge. As 2014, the CORS network had over 1,900 stations, contributed by over 200 different organizations.
Station: JIME (PID DN2111) - Washington County, Oregon
Description: The receiver is a Leica GR10 with a Leica AS10 compact geodetic antenna mounted on the roof of the Washington County Public Service Building, 155 N. First Ave., Hillsboro, OR. It is maintained by the Washington County Surveyor's Office.
Resources:
- Complete ITRF00 and NAD83(2002) coordinates
- Complete site information
- Washington County Primary Control Network Map
- NOAA CORS Network (NCN)
| ANTENNA REFERENCE POINT (ARP) NAD83(EPOCH 2002) |
|
| Latitude | 45 31 23.23 N |
| Longitude | 122 59 25.90 W |
| X Coord (m) | -2437364.088 |
| Y Coord (m) | -3754570.294 |
| Z Coord (m) | 4528307.678 |
| LaPlace (sec) | -6.02 |
| Ellipsoid Height (m) | 53.0 |
| Geoid Height (m) | -22.81 (GEOID09) |
Contact(s)
| Name | Title | Phone | |
|---|---|---|---|
|
Scott Young
|
County Surveyor
|