Electronic Ghosting

For ISAAC there is a correction applied for electronic ghosting. The ghosts consist ``of an additional signal, which, on one row, is proportional to the sum of the intensity along this row and the row 512 rows away.'' according to the ISAAC Data Reduction Guide. Recipes combine the two halves adding the bottom half to the top and vice versa, collapse this image along rows, scale by the documented correction factor of 1.35E-5 to form the ghost flux per row, which is then subtracted from the original image.
[ISAAC/_REMOVE_ELECTRONIC_GHOSTING_]