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Basic Information on offpol
Task: offpol
Purpose: Generate ATCA primary beam polarimetric response.
Categories: utility
OFFPOL generates images of the primary beam response (both total
intensity and polarimetric) of the ATCA antennas. It performs a
simple simulation of an observation.
Key: out
Output name template. No default.
Key: imsize
Two values, the image size. Second value defaults to first.
Default 255.
Key: cell
Two values, the image cell size in RA and Dec, in arcsec.
Second value defaults to first. Each defaults separately to
twice the primary beam FWHM divided by imsize.
Key: ra
Right ascension of the field centre. (Used solely for setting
the output header, it has no effect on the computation.)
Default 0.
Key: dec
Declination of the field centre. Default -45 deg.
Key: harange
Hour angle range to simulate - the start and end hour angles,
and the simulation step size. The default is to simulate a
snapshot at 0 hours. The default step size is 0.1 hours
(6 min) which might be inadequate for sources with a declination
near -30 deg.
Key: freq
Frequency of interest (GHz). The default is 1.384 GHz.
Key: options
Task enrichment parameters. Several can be given.
raw Generate images of the XX,YY,XY and YX responses,
rather than the Stokes responses.
subtract Subtract off the circularly symmetric portion of the
primary beam response from I, XX and YY responses.
new16 Use the measured patterns for 16cm, these have some
obvious flaws but may give a better indication of the
current instrumental polaristion
Revision: 1.8, 2016/10/28 00:42:38 UTC
Generated by miriad@atnf.csiro.au on 28 Oct 2016