ImageStep

Create a series of images at the specified cadence using WSClean its in-memory interface.

inputs

type

type:

string

default:

image

doc:

Case-insensitive step type; must be ‘image’.

cadence

type:

float

doc:

The imaging cadence (in seconds), i.e., how often an image is created. The cadence should be larger than the time resolution of the input data. The number of time slots that are images together is calculated as round(cadence / time resolution).

fitsprefix

type:

string

doc:

Prefix used for naming the images produced by WSClean. Thus, each new set of images is formatted as <fitsprefix>-<image index>-image.fits, where the image index refers to the nth time interval (starting from 0) that’s been written to disk. If this option is unset, the step expects -name to be set in options, which means that multiple time slots will overwrite each other.

default:

""

options

type:

string

doc:

WSClean command-line arguments, e.g. -scale 1arcmin -size 1024 1024 -niter 1000 -mgain 0.8 -auto-threshold 3. For additional information about these (cleaning) options, refer to the WSClean documentation.