Norcross, GA, USA– Three additional GPS satellite base stations owned by eGPS Solutions are now being processed into the National Geodetic Survey (NGS) Continuously Operating Reference Stations (CORS) program.
These base stations are part of the eGPS Real Time Global Navigation Satellite System (GNSS) Network. Every CORS-approved base station provides the Global Navigation Satellite System carrier phase and code range measurements in support of 3-dimensional positioning activities throughout the United States and its territories. As part of the National Oceanic and Atmospheric Administration (NOAA), NGS invites organisations and individuals to share data from their permanent GPS base stations by including these stations in the National CORS network.
Each CORS-approved base station must meet significant criteria including having dual frequency receiver/antenna oriented to true North with approved NGS phase center variability model, tracking at least ten satellites above 0 degrees, with pseudorange precision to better than 0.5 meter RMS, and many additional measurements and rules. Surveyors, engineers, scientists, and others can use data provided by CORS to position points at which GNNS data have been collected. This system enables accuracies in positioning of a few centimeters, both horizontally and vertically, relative to the National Spatial Reference System.
