National Radio
Astronomy Observatory

What imager produces:

imager reads and writes CASA MeasurementSets and Images. The format of images is 4 dimensional, with the first two being right ascension and declination, the third being polarization and the fourth being frequency. By suitable choice of the input parameters, one can make images of I alone, I,V or I,Q,U,V for one or all channels. The makeimage tool function can also make a complex image of the original polarizations e.g. RR, RL, LR, LL. This latter type of image is useful for diagnostic purposes.

Images generated by imager may be viewed using ?? tool or retrieved using the images tool, the MeasurementSets may be accessed using the ms tool. More on this in the example below.

More information about CASA may be found at the CASA web page

Copyright © 2016 Associated Universities Inc., Washington, D.C.

This code is available under the terms of the GNU General Public Lincense