Flagging Operators

MHO_DCBlock

Class	MHO_DCBlock
Operator Type	Unary
Operator Category	flagging
Argument Data Type	visibility_type
Priority Value	3.5
Control File Keyword	dc_block

Zero out the (single) DC spectral point for each channels in the visibility data.

MHO_Notches

Class	MHO_Notches
Operator Type	Unary
Operator Category	flagging
Argument Data Type	visibility_type
Priority Value	4.5
Control File Keyword	notches

Operator which ‘notches’ out problematic chunks of visibilities in frequency space by filtering out specified frequency ranges. Visibility data within a notch is set to zero, and corresponding weights are adjusted accordingly.

MHO_Passband

Class	MHO_Passband
Operator Type	Unary
Operator Category	flagging
Argument Data Type	visibility_type
Priority Value	4.5
Control File Keyword	passband

Selects a chunk of frequency space for inclusion or removal based on passband boundaries (effectively a single notch or window).