Return to directory of Todd's CASA extensions
Reads an antenna configuration file (by default from the directory:
os.getenv('CASAPATH').split()[0]+'/data/alma/simmos
and computes the expected synthesized beam e in arcseconds based
on the ALMA-accepted formula of 0.574*lambda/L80percentile (i.e. Eq 7.4 of Cycle 4 Technical handbook). See also estimateMRSForConfig.