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@noaa-ngs

NOAA/NOS/National Geodetic Survey

NOAA’s National Geodetic Survey (NGS) provides the framework for all positioning activities in the Nation.

Popular repositories

  1. HTDP HTDP Public

    Horizontal Time-Dependent Positioning (HTDP) is a utility that allows users to transform positional coordinates across time and between spatial reference frames.

    Fortran 16 4

  2. ncat-lib ncat-lib Public

    Library of transformation modules used by the NCAT web based tool.

    Java 10 5

  3. inverse inverse Public

    The geodetic inverse, program INVERSE, is the tool for computing the geodetic azimuth and distance between two points, given their latitudes and longitudes.

    Fortran 4 1

  4. intg intg Public

    C 1

  5. xintg xintg Public

    xintg (INTerpolate Experimental Geoid) is used to interpolate the geoid height for a user specified position and geoid model.

    C 1

  6. intd intd Public

    Intd (INTerpolate from Deflection files)

    C

Repositories

Showing 9 of 9 repositories
  • HTDP Public

    Horizontal Time-Dependent Positioning (HTDP) is a utility that allows users to transform positional coordinates across time and between spatial reference frames.

    Fortran 16 4 1 0 Updated Feb 2, 2023
  • xintg Public

    xintg (INTerpolate Experimental Geoid) is used to interpolate the geoid height for a user specified position and geoid model.

    C 1 0 0 0 Updated Jan 24, 2022
  • ngs_xml Public

    Software to help with the creation of GVX (The GNSS Vector Exchange File Format) files utilizing the GVX_XML_Writer.

    Python 0 0 0 0 Updated Nov 5, 2021
  • inverse Public

    The geodetic inverse, program INVERSE, is the tool for computing the geodetic azimuth and distance between two points, given their latitudes and longitudes.

    Fortran 4 1 0 0 Updated Sep 8, 2021
  • intg Public
    C 1 0 0 0 Updated Sep 8, 2021
  • forward Public

    The geodetic forward, program FORWARD, is the tool for computing the latitude and longitude of a point, given the latitude and longitude of a starting point and the geodetic azimuth and geodetic distance between the points.

    Fortran 0 0 0 0 Updated Sep 3, 2021
  • intd Public

    Intd (INTerpolate from Deflection files)

    C 0 0 0 0 Updated Aug 31, 2021
  • adjust Public

    Least Squares Adjustment software

    Fortran 0 1 0 0 Updated Aug 31, 2021
  • ncat-lib Public

    Library of transformation modules used by the NCAT web based tool.

    Java 10 5 1 0 Updated May 6, 2021

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