Fixes for row/col:  - adjust row/col in 6x6 images  - fix dtype for row and col so it is not truncated  - fixed issue with packing signed ints
Fixes for row/col:
 - adjust row/col in 6x6 images
 - fix dtype for row and col so it is not truncated
 - fixed issue with packing signed ints

sot/chandra_aca,sot/chandra_aca