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Version 1.9 Build 1556

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imager.sensitivity - Function

	Package	synthesis
	Module	imager
	Tool	imager

Calculate rms sensitivity

Synopsis
sensitivity(pointsource, relative, sumweights, async)

Description
Calculate the point source sensitivity for the selected data, both absolutely and relatively (to that for natural weighting).

To do the calculation, we use the imaging weights (in the column called IMAGING_WEIGHT) and the specified sigma per point (in the column SIGMA). Therefore, this includes all the effects of weight and filter.

Arguments

pointsource	out	Calculated point source sensitivity (Jy/beam)
		Allowed:	Quantity
relative	out	Calculated relative sensitivity
		Allowed:	Double
sumweights	out	Calculated sum of weights
		Allowed:	Double
async	in	Run asynchronously in the background
		Allowed:	Bool
		Default:	!dowait

Returns
Bool

Example

local s,r,sum
ok := imgr.sensitivity(s,r,sum,F)
print 'Sensitivity = ', s
print 'Relative to Natural Weighting = ', r

Example

imgr.sensitivity()
# Wait for it to finish and then ask for the result:
- defaultservers.result(1)
[pointsource=[value=0.25, unit='Jy'], relative=2.5, sumweights=642085.45]