|The value of the convolvertype is not recognised.|
|The value of the masktype parameter is not recognised.|
|The convolver size is less than 1 channel.|
|The convolver elements sum to zero.|
|Bad status return from convolution algorithm, indicating the convolver contains some negative- or zero-valued channels. This error should only occur if fillholewidth has been set to some value greater than zero.|
|The user has requested via the parameter fillholewidth that holes in the mask up to this size be interpolated. However the task has found that the convolver is not wide enough to permit this size hole to be interpolated.
corrective action: The value of the maximum hole to be filled is truncated accordingly.
XMM-Newton SOC -- 2021-11-30