NC CORS Sites
 

NCGS established and maintains the North Carolina Continuously Operating Reference Station (CORS) Network of *Global Navigation Satellite System (GNSS) base stations for GPS and GNSS users needing to differentially correct their raw field data.

*GNSS includes both the U.S. GPS satellites and the Russian GLObal’naya Navigatsionnaya Sputnikovaya Sistema (GLONASS) satellites.

• Real-time users can obtain GNSS reference data by requesting a North Carolina GNSS Real Time Network (RTN) port from the base station network administrator, Bart Alligood (bart.alligood@ncdps.gov), and paying a $500 one-time access cost.

• Post-processing users can obtain reference data for free via the following methods:

  • GNSS reference data can be obtained via either:

    • NCGS FTP site

    • NC GNSS RTN Reference Data Shop (please use the following directions)

  • GPS reference data (without the GLONASS data) can be obtained from the National Geodetic Survey (NGS) by:

    • Downloading directly from the NGS User Friendly CORS site (UFCORS), which provides reference data from ~1,800 base stations in the National CORS Network

    • Clicking on a base station on the map below, which will direct you to that station’s NGS CORS webpage, and then downloading from UFCORS in a frame within that station’s NGS webpage.

Please be aware that this frame access to UFCORS does not filter down the list of available base stations to just your desired station [e.g. ASHEBORO 2 (NCZO)], but provides access to all the base stations in the network and the default station is LOUISIANA STATE U (1LSU)!

If you need assistance, please contact:

The NC CORS Base Station Network is referenced to the NAD 83(2011) datum.  For information please read the “The National Adjustment of 2011 Project” .