GEOID DEFINITION RECORDS

This record establishes the deflection components and the geoid-ellipsoid separation for a station.

Sample records

      COLUMN    CONTENT

        1-2     Blank

         3      Code : 9

        4-6     Type used to identify a class of observations
                        (See the GEOGRAPHIC COORDINATE format description
                        page for the possible observation types)

        7-15    Station number used to associate the data on this
                record with data on other records for the same coordinates

        16-30   Station name

         31     Blank

        32-38   Model of deflection components

         39     Blank

         40     Deflection north-south indicator (blank, N, + or S, -)

        41-42   Meridian component degrees

        43-45   Meridian component minutes

        46-54   Meridian component seconds

         55     Deflection east-west indicator (blank, E, + or W, -)

        56-58   Prime vertical component degrees

        59-61   Prime vertical component minutes

        62-70   Prime vertical component seconds

        71-80   Geoid-ellipsoid separation