The Command ccd

The command ccd manipulate the UBV CCD data corresponding to the data type ccd. The CCD data are contained in the file ubv.ccd. The command ccd presents options common to all commands and offers additional options to get mean value, references and perform selections.

The similar commands ubv, pgh, cam, sit manipulate the other UBV related data types.

The various possibilities offered by the command ccd are: