A system and method for determining an orientation of the survey tool within a borehole utilizes a survey tool including a plurality of rotation sensors each having a sensing axis and a direction of least acceleration sensitivity. In order to achieve this object, according to the invention, a reference threshold to be used for error diffusion for a cyan component is obtained on the basis of a density value M of a magenta component. The display tray also includes a side panel member having at least two angular panels positioned within the shell adjacent at least two of the corners and including a tab projecting from the top of at least two of the angular panels. A corresponding value, as a specific gravity value, corresponding to G\u221a{square root over } in each cell is retrieved from a database unit to be assigned to each cell. The switch is formed by first and second tubular housing members relative rotatable to close the air valve means and simultaneously to connect the battery circuit to the lamp.