Columbus supports keywords that allow you to scale distance type observations. When one of 
the following keywords is encountered, the observation type it applies to will be scaled 
on Import or when using Adjust From File.



Example:

! Scale all chord distances by 1.002 when they are loaded from the file.
_S_CHORD; 1.002

! This will apply to any chord distances that are below (this keyword) in the file.

! Turn the scaling off (for all chord distances that follow), set _S_CHORD to 1.0.
_S_CHORD; 1.0





! Scale chord distance observations when loaded from the file.
_S_CHORD; 1.0001



! Scale horizontal distance observations when loaded from the file.
_S_HOR_DIST; 1.0001



! Scale height difference observations when loaded from the file.
_S_HGT_DIFF; 1.0001



! Scale GPS delta X observations when loaded from the file.
_S_DX; 1.0001



! Scale GPS delta Y observations when loaded from the file.
_S_DY; 1.0001



! Scale GPS delta Z observations when loaded from the file.
_S_DZ; 1.0001



! Scale delta North observations when loaded from the file.
_S_DN; 1.0001



! Scale delta East observations when loaded from the file.
_S_DE; 1.0001



! Scale delta UP observations when loaded from the file.
_S_DUP; 1.0001



! Scale geodesic distance observations when loaded from the file.
_S_GEODESIC; 1.0001