The Science Data Quality file (DQF) must consist of short integers and have the same dimensions and number of groups as the Science Image file. Each pixel indicates the quality of the corresponding pixel in the Science Image file. Zero valued pixels indicate ``good'' pixels in the Science Image file and nonzero valued pixels flag various problems or potential problems with their corresponding pixels (see below). The Science Data Quality file is identified by the extensions ``.Q0H'' and ``.Q0D''.
