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8.7 CPSL Files

The flux uncertainties reported in CPSL are statistical only and amount to about $\pm$ 20% for fixed filters and $\pm$ 30% for CVFs. Point source analysis is only performed on CMAP images, before any mosaic reconstruction. Hence some faint sources, that become detectable after the mosaic reconstruction, will have escaped detection by the Auto-Analysis routines. Other things to bear in mind:

Wheel jitter can introduce spurious point sources.
The point source detection algorithm is prone to find some spurious sources for the SW detector or near complex extended sources.
Unrecognized glitches may be mistaken as sources.

ISO Handbook Volume II (CAM), Version 2.0, SAI/1999-057/Dc