A set of three DOS programs to assist in calculating declinations from field survey data
Calculates the relevant plate bearing errors from sets of pairs of horizontal scale readings. Click here for more information.
Calculates the PB-Az correction from a sun-azimuth observation, or a set of sun-azimuth observations, together with the relevant ephemeris data. Click here for more information.
Calculates the declination of a horizon point or points from recorded theodolite readings, or from map data. Click here for more information.
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Author: Clive Ruggles
* The DECPAK programs are adapted from a set of programs originally written between 1975 and 1984 by John Cooke, Roger Few, Guy Morgan, and Clive Ruggles