This page contains definitions that are useful for checks on the quality of our data. Keep-ups must not be used for analyses. They use a preliminary version of the calibration constant and, in the case of the FD, have limited PID and energy information to ensure blinding.All datasets should be used in conjunction with knowledge of the software release that was used to make them. This information is available here. The old redmine based version of this page can be viewed here, however this page is out of date and is not being maintained.