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bkgoptrate (bkgfilter-1.8.1) [xmmsas_20211130_0941-20.0.0]


This section documents warnings and errors generated by this task (if any). Note that warnings and errors can also be generated in the SAS infrastructure libraries, in which case they would not be documented here. Refer to the index of all errors and warnings available in the HTML version of the SAS documentation.

 Failed to find the optimum background (in the given constraints).
 Regarded the lowest bins as the optimum background level (see text for detail).
 After filtering with various thresholds (GTI, Start/End-Times, Lower-Cutoff-Count, Min-Time-Ratio), no significant bin is left. As a typical case, all the bins in the input time-series are uniformly zero.
corrective action: The lowest bins looks like the optimum background level in the given mintimeratio (see text for detail).
corrective action: Specified lowercutoffcount is negative.
corrective action: If ignorelowcnttail is true, and if the lowest count bin shows the best signal-to-noise ratio.
corrective action: The same as the error allMaskFalse.

XMM-Newton SOC -- 2021-11-30