All images, warps and stacks, have mask images which indicate image flags for each individual pixels. Below is a table that indicates the meaning for each flag. These flags are applicable for both, the warp and stack images.
Contents
Image Flags
Mask values which represent features of the detector
Flag name | hexadecimal value | Description |
---|---|---|
FLAT | 0x0002 | Pixel doesn't flat-field properly |
DARK | 0x0004 | Pixel doesn't dark-subtract properly |
BLANK | 0x0008 | Pixel doesn't contain valid data |
CTE | 0x0010 | Pixel has poor Charge Transfer Effici |
SAT | 0x0020 | Pixel is saturated or non-linear |