Magnet calibrations are kept in namelist format in [cesr.constants]magnet_type.cal.
Where magnet_type is one of:
To modify a calibration file:
1) modify the undated calibration file.
2) make a dated calibration file by copying the NEW undated calibration file
and appending the current date to it. The format for the dated file is:
{calibration_type}_yyyy-mm-dd.CAL
Look at other files as examples.
The date signifies the STARTING point from which the calibration is valid.
-- David Sagan