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XMM-Newton Science Analysis System

eradial (especget-1.54) [xmmsas_20211130_0941-20.0.0]

Fit statistic

The PSF is fit to the radial profile with a linear fit where the constant is the background and teh linear term is the normalisation of the PSF to the strength of the source. The code performs a fit weighted by the inverse of the error on each data point. The RMS fit statistic is displayed.

XMM-Newton SOC -- 2021-11-30