Bit definition for IRAC *_bimsk.fits
Bit # Condition
--- --------------------------------------------
0 Reserved for Boolean mask (or if best practice bits set, data quality)
1 Reserved for future use
2 Optical ghost flag (to be set by post-BCD tool)
3 Stray light flag (to be set by post-BCD tool)
4 Donut (saturation) detection flag (to be set by post-BCD tool)
5 Muxbleed flag (to be set by post-BCD tool)
6 Banding flag (to be set by post-BCD tool)
7 Pulldown flag (to be set by post-BCD tool)
8 Crosstalk flag (bit 13 of dmask)
9 Cosmic ray hit (bit 9 of dmask, single frame radhit detection)
10 Latent flag (bit 5 of dmask)
11 Not flat-field corrected (bit 8 of dmask)
12 Data not very linear (to be set by future pipeline module)
13 Saturated (bit 10 of dmask)
14 Data bad and/or missing (bit 14 OR bit 11 of dmask)
Spitzer Post-BCD Mosaicer: Input parameter for Imasks
DCE_Status_Mask_Fatal_BitPattern = 32520 (bits 3, 8-14)
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