quiet Do not give any messages during iterations. The default is to give a one line message at each iteration. verbose Give lots of messages during the iterations. The default is to give a one line message at each iteration. asym The beam is asymmetric. By default MAXEN assumes the beam has 180 degree rotation symmetry, which is the norm for beams in radio-astronomy. pad Double the beam size by padding it with zeros. This will give better stability if you are daring enough to deconvolve more than the inner quarter of the dirty image.