GjincBeam: Difference between revisions
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<source lang="python"> | <source lang="python"> | ||
# In CASA | # In CASA | ||
import analysisUtils as au | CASA <3>: import analysisUtils as au | ||
au.gjincBeam(115.27) | au.gjincBeam(115.27) | ||
Theoretical primary beam FWHP = 52.3039 arcsec | |||
Expected effective restoring beam = 55.6189 arcsec | |||
Out[3]: 55.61890766200338 | |||
</source> | </source> | ||
Revision as of 14:42, 27 June 2013
Return to Analysis Utilities
This page documents the gjincBeam function of the Python module analysisUtils.
This function calls the gjinc class to compute the effective restoring beam obtained from the casa command sd_imaging when using the GJINC gridding kernel assuming the GJINC specific parameters are left at their default values. It returns the value in arc seconds.
Usage
au.gjincBeam(frequency, pixelsize=10, diameter=12.0, samplingFactor=2.5)
frequency: floating point number in GHz (no units) pixelsize: floating point number in arcseconds (no units) diameter: the diameter of the single dish antenna in meters (no units) samplingFactor: the number of sampled points per telescope FWHM
Example
# In CASA
CASA <3>: import analysisUtils as au
au.gjincBeam(115.27)
Theoretical primary beam FWHP = 52.3039 arcsec
Expected effective restoring beam = 55.6189 arcsec
Out[3]: 55.61890766200338
