Eric Colburn, PLS

Tag: OPUS

  • Federal Government Shutdown Shutters NOAA NGS OPUS Website

    If you use the Federal Government OPUS website operated by NGS and NOAA, then you may already have discovered that the site is non-functional and have already seen the notice in the image shown here. If you needed OPUS for your land surveying work, but did not realize that the OPUS website has been shuttered,…

  • GEOID12 Error Analysis Complete and GEOID12A Model Developed

    GEOID12 Error Analysis Complete and GEOID12A Model Developed

    Here’s an important notice from The National Geodetic Survey (NGS) concerning the new GEOID12 model: The National Geodetic Survey has determined that the GEOID12 model was developed using erroneous input control points, primarily in the Gulf Coast region. NGS immediately corrected these errors and developed a replacement model: GEOID12A. GEOID12A is now available for public…

  • 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…

  • OPUS-Projects Manager Training

    PUS-Projects Manager Training July 11-12, 2011 NGS is currently beta-testing a Network Processing Option for OPUS known as OPUS-Projects. This feature will allow the processing, adjustment and publishing of multiple stations over multiple days. Because of the increased complexity of this capability, the creation and management of Projects for OPUS is limited to those who have…

  • OPUS Soon To Have A New Look

    Yesterday, I was using the National Geodetic Survey’s (NGS) Online Positioning User Service (OPUS), where there was a bright green notice at the top of the OPUS page that said, “OPUS will feature a new look-and-feel on or about 03/01/2011”. In researching this impending change to the look of OPUS, I found the following notice on…

  • GPS Hands on Post-Processing Workshop Co-Sponsored by CALS & NES-ACSM

    GPS Hands on Post-Processing Workshop Co-Sponsored by CALS & NES-ACSM

    Course Summary This one-day computer lab workshop co-sponsored by the Connecticut Association of Land Surveyors (CALS) & the New England Section of ACSM (NES-ACSM) is designed to empower surveyors to post process their own single point or pair of points solutions for local survey projects that require NAD83 coordinates, using free and demonstration software. Those…

  • NGS Geodetic Tool Kit-Geodetic Tools for the Professional Land Surveyor

    The NGS Geodetic Tool Kit is a great online resource with over 25 interactive geodetic computation tools. Many professional land surveyors who use GPS may be familiar with OPUS, however, the other programs deserve your attention as they may be the answer to your geodetic surveying computation questions. NGS Geodetic Tool Kit on-line interactive computation…

  • NGS Announces NEW CORS GOOGLE MAPS

    Written by NOAA/NGS: July 9, 2008 NEW CORS GOOGLE MAPS The CORS web site ( www.ngs.noaa.gov/CORS/ ) features a new set of dynamic Google maps to facilitate access to CORS information. These updated maps were designed and implemented by The CORS Team. Please view these maps when you get a chance and share with us…