I've generated 2 sets of CAL calibration files (pedestals, asymmetry, MevPerDAC) for two 6Ms periods available in 2012 data.
1) 346000000 < MET < 352000000 or 15-DEC-2011 < date < 27-FEB-2012
2) 352000000 < MET < 358000000 or 27-FEB-2012 < date < 06-MAY-2012
Calibrations are added to calibration database.
Following plot shows the evolution of CAL energy scale (average of 1536 crystals) over 4 years:
