The ATCA Forum

In most sources of information on the primary beam for the ATCA, it is assumed that the primary beam has rotational symmetry. For example, http://www.atnf.csiro.au/observers/memos/d97f7b~1.pdf . In practice, this is not quite true. This can cause a problem with sources at the edge of the primary bea...

Just posting an update for anyone else wanting to know the same information. The MIRIAD gridding process is coded within mapper.for and grid.for, mapper.for performs the gridding, and grid.for constructs the interpolation kernel. It looks like spheroidal is the choice of interpolation kernel. The re...

Hi, does anyone know if there is documentation describing invert's uv gridding process? In particular, describing the choice of gridding interpolation kernel? Also, is the interpolation kernel different from CASA's? I have looked in the manual, as well as papers describing MIRIAD, and had a quick lo...

Hi Mark,

It is good to know I am on the right track. It is also good to know that invert does do a primary beam correction for the mosaic option, I always assumed it didn't.

Luke

Hello, I am interested in appling selfcal ( http://www.atnf.csiro.au/computing/software/miriad/doc/selfcal.html ) on a mosaic of 40 pointings. However, the clean component model I generate using mossdi will not work with selfcal. I get the selfcal output Calculating the model for data.ic ### Fatal E...