Other pixels

In addition to overclock pixels, there are two other kinds of virtual pixels in the raw FITS image:

• `underclock' pixels are read out before the first real pixel is read out.
• `undefined parallel transfer' pixels are read out as the next row is shifted down in the frame store array

These pixels are currently not used when creating an event list. The total makeup of each quadrant in the raw FITS image is shown in Figure 3.3.

 

Figure 3.3: Which pixels are which in READ coordinates for each output node.