ip_skyimage performs deconvolution of the PICsIT shadowgrams with the use of the balanced cross-correlation method described in Goldwurm et al. 2003 [10], see also Section 12.8. The values of the decoding -array are taken from PICS-DECO-MOD Data Structure.
The output Data Structure PICS-SKY.-IMA store either a cartesian (CAR) or a tangential (TAN) projection of the celestial sphere. The index of deconvolved images is written to the PICS-SKY.-IMA-IDX Data Structure, it has the same content as ISGR-SKY.-IMA-IDX (Table 49). IMATYPE can be either ``IMAGE'', either ``VARIANCE'', or ``SIGNIFICANCE''.
The list of sources that were found during the analysis are written to the PICS-SKY.-RES