Left-Button Left mouse button flags the nearest visibility. Right-Button Right mouse button causes SmaBLFLAG to precede to the next baseline. <CR> Carriage-return gives help. ? Help. a Flag nearest visibility (same as left mouse button). c Clear the flagging for this baseline, and redraw plot. h Give help (same as carriage return). p Define a polygonal region, and flag visibilities within this region. You define the vertices of the polygon by moving the cursor and then hitting the left mouse button (or a). You finish defining the polygon by hitting the right mouse button (or x). You can delete vertices with the middle mouse button (or d). q Abort completely. This does not apply flagging. r Redraw plot. u Unzoom. x Move to next baseline (same as right mouse button). z Zoom in. You follow this by clicking the mouse on the left and right limits to zoom.The visibility data are color-coded for the program sources.
time (the default for the X axis) lst Local apparent sidereal time. antel antenna elevation in degree; only for systemp flagging. uvdistance sqrt(u**2+v**2) hangle (hour angle) amplitude (the default for the Y axis) phase real imaginary systemp (only for Y axis)
nobase Normally SmaBLFLAG plots a single baseline at a time. This option causes all baselines to be plotted on a single plot. selgen Generate a file appropriate for selecting the bad data (via a "select" keyword). The output is a text file called "blflag.select". noapply Do not apply the flagging. rms When processing spectra, blflag normally plots the mean value of the spectra. Using options=rms causes if to plot the rms value instead. scalar When processing spectra, blflag normally forms an average value by vector averaging. The "scalar" option causes it to generate the scalar average. This option should be used with significant caution.The following options can be used to disable calibration.
nocal Do not apply antenna gain calibration. nopass Do not apply bandpass correction. nopol Do not apply polarisation leakage correction.