Although a unique reconstruction of the number and energy of the
photons which have caused such a pattern is not possible, the
amplitudes may contain useful information, e.g. if the energy
of the photons is known already. Thus, PAT_TYP is positive for
all pixels. To distinguish this case from the recognizable pattern
case, PAT_IND is always negative. (The main pixel can be found
after the column PI has been filled, since this will contain
the negative sum of the corrected energies for this pixel, and
zero for the others.)
| triple | quadruple | larger pattern | |
| PAT_TYP | 3 | 4 | n |
| PAT_IND | always  |
||
| PAT_ORI | always = 0 | ||
| PI | -sum(a) for pixel with maximum amplitude | ||