#
#for example to image Flux density calibtator
#with R=2 weight
#
FLvis  = FLname+'.ms'
imagr_FL  = 'SMA-'+FLname
 print 'imaging: vis='+FLvis
 user_check=raw_input('hit Enter to run clean -')
 os.system('rm -rf '+imagr_FL+'.*')
 clean(vis=FLvis, imagename=imagr_FL,
      imagermode='csclean', uvrange='',
      imsize=500,cell='0.05arcsec',spw=allspw,
      mode='mfs',multiscale = [0,5,20,40,70],negcomponent=1,
      weighting='briggs',robust=2,nterms=2,gain=0.1,
      interactive=T,
      threshold='1.5mJy',niter=1500)
 user_check=raw_input('hit Return to continue script for viewer\n')
 viewer(imagr_FL+'.image.tt0')