Eric Colburn, PLS

Tag: Calibration

  • Professional Land Surveyor Weekly Roundup October 9, 2011

    Professional Land Surveyor Weekly Roundup October 9, 2011

    Professional Land Surveyor Weekly Roundup: Professional Land Surveyor Source Twitter Weekly Updates for 2011-10-09 Knowing Your Numbers-Project Metrics for Your Land Surveying Company LightSquared CEO on The Communicators Senator Chuck Grassley Continues to Pursue Information on LightSquared, Agency Interaction Elgin & Knowles-The U.S. Public Land Survey System (PLSS) for Arkansas Reference Book and Manual New…

  • National Geodetic Survey (NGS) New CORS Coordinates and Absolute Antenna Calibration Pages

    National Geodetic Survey (NGS) New CORS Coordinates and Absolute Antenna Calibration Pages

    National Geodetic Survey (NGS) Releases New CORS Coordinates and Absolute Antenna Calibration Pages NAD83(2011,MA11,PA11) epoch 2010.00 Coordinates On September 6, 2011, NGS updated the National Spatial Reference System NAD 83 (CORS96, MARP00, PACP00) positions and velocities for all CORS sites, to NAD 83 (2011, MA11, PA11). The NAD 83 (2011) frame, which is relative to the…