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The photometric depth depends on various factors like number of exposures used, total exposure time, seeing, cloud coverage, and crowdedness. Therefore PS1 does not have a uniform depth (see spatial depth maps below), but overall due to a real effort to apply a PS1 Observing strategy that maximizes the uniformity, the differences in depth are in general only a few tenths of magnitude.

Spatial depth maps

The table below shows the depth maps of the PS1 grizy filters for 50% and 98% completeness on the left and right side, respectively, determined with PSF photometry of stellar sources in the stacked images. if fields with |b| < 20 are excluded, the median improves by ~0.1 mag.