Make a casa ms from a sdm-bdf fileset ... csh shell for now .. source /home/ballista/casa/devel/casainit.csh >asdm2MS /home/evlangas-2/test_files/X_000.54784.452835358796 John- First, you want to launch casapy-test (-test gets you the latest version), and then at the CASA prompt: exportuvfits(,,datacolumn='data',combinespw=True,async=True) where you supply and (filenames). Typically, = +'.ms' (and the resulting MS is a directory) datacolumn='data' means to write out the (observed) data from the MS. combinespw=True means to combine the spectral windows (IFs) into a single FREQID in the UVFITS file (important!) async=True means it will run in the background (there are some problems with the non-async mode in our FITS classes) We can check with Wes next week about running all of this non-interactively (I'm not sure how to supply the filenames). He's out until next week I think---3 wisdom teeth pulled yesterday! -George