| 1 | (edge) Detector bevel edge reflection (NUV only) |
| 2 | (window) Detector window reflection (NUV only) |
| 4 | (dichroic) Dichroic reflection. |
| 8 | (varpix) Variable pixel based on time slices. |
| 16 | (brtedge) Bright star near field edge (NUV only) |
| 32 | Detector rim(annulus) proximity(>0.6deg from field center) |
| 64 | (dimask) Dichroic reflection artifact mask flag |
| 128 | (varmask) Masked pixel determined by varpix. |
| 256 | (hotmask) (hotmask) Detector hot spots. |
| 512 | (yaghost) Possible ghost image from YA slope. |