Description

This routine sets the expression used to define the boundary condition, or conditions, of the CALDB search when calFindFile() is called. A value of "-" means that no boundary conditions are to be used.

This field corresponds to the expr parameter of the quizcaldb tool. See the CALDB Required Boundary Conditions table to find out if you need to add a boundary condition, or conditions. The conditions are expressed using a syntax similar to FORTRAN boolean expressions, so that

cti_corr.eq.yes

means that only those files relevant for CTI-corrected data should be searched, while

cti_corr.eq.no.and.ccd_id.lt.4

means to look for data relevant to non CTI-corrected data whose ccd_id field is less than 4 (i.e. the ACIS-I array).

Note that the routine to get the current boundary condition from a CALDB structure is called

calGetQuery()