Analyst's Notebook datum

By default, Analyst's Notebook uses the WGS84 datum when it processes coordinate data. Depending on the coordinate system, it might use a better alternative, such as OGB-7 in the case of British National Grid coordinates.

If the default datum is not suitable, you must specify a different one as part of the entered coordinates. For example, for Degrees Minutes Seconds, you can enter coordinates with or without a datum code prefix:

WGE*12°34'56" 98°76'54"
35°54'15", 14°31'8" (the WGS84 datum is assumed)

Alternatively, you can leave the coordinates without a prefix, and store the datum code in an attribute value.