XMM-Newton Science Analysis System


bkgoptrate (bkgfilter-1.8.2) [xmmsas_20230412_1735-21.0.0]

Errors

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.

noThresholdFound		error
	Failed to find the optimum background (in the given constraints).
regardLowestBinsAsOptimum		error
	Regarded the lowest bins as the optimum background level (see text for detail).
allMaskFalse		error
	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.
recommendedLowerMinTimeRatio		warning
	corrective action: The lowest bins looks like the optimum background level in the given mintimeratio (see text for detail).
negativeLowerCutoffY		warning
	corrective action: Specified lowercutoffcount is negative.
lowestBinsHaveBestSN		warning
	corrective action: If ignorelowcnttail is true, and if the lowest count bin shows the best signal-to-noise ratio.
noSignificantBin		warning
	corrective action: The same as the error allMaskFalse.