! Started logfile: 0423+237_S.log on Tue Nov  6 09:38:53 2007
observe 0423+237_S.edt
! Reading UV FITS file: 0423+237_S.edt
! AN table 1: 44 integrations on 105 of 105 possible baselines.
! Apparent sampling: 0.217316 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 0423+237
! 
! There are 4 IFs, and a total of 4 channels:
! 
!  IF  Channel    Frequency  Freq offset  Number of   Overall IF
!       origin    at origin  per channel   channels    bandwidth
!  ------------------------------------------------------------- (Hz)
!  01        1  2.23697e+09        8e+06          1        8e+06
!  02        2  2.26697e+09        8e+06          1        8e+06
!  03        3  2.35697e+09        8e+06          1        8e+06
!  04        4  2.37697e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 970 lines of history.
! 
! Reading 4016 visibilities.
![@gonzo7-0.4 0423+237_S]
print "***********************************"
! *********************************** 
print "*** Using gonzo instruction set ***"
! *** Using gonzo instruction set *** 
print "***********************************"
! *********************************** 
float field_size
field_size = 1024
float field_cell
field_cell = 0.4
integer clean_niter
clean_niter = 50
float clean_gain
clean_gain = 0.03
float dynam
dynam = 7.0
float win_mult
win_mult = 1.8
float solint
solint = 3.6/6.0
logical doflt
doflt = true
logical doamp
float new_peak
float flux_cutoff
mapsize field_size,field_cell
! Map grid = 1024x1024 pixels with 0.400x0.400 milli-arcsec cellsize.
select
! Selecting polarization: RR,  channels: 1..4
! Reading IF 1 channels: 1..1
! Reading IF 2 channels: 2..2
! Reading IF 3 channels: 3..3
! Reading IF 4 channels: 4..4
startmod
! Applying default point source starting model.
! Performing phase self-cal
! Adding 1 model components to the UV plane model.
! The established model now contains 1 components and 1 Jy
! 
! Correcting IF 1.
!  A total of 345 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 345 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 370 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 345 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.874059Jy  sigma=0.011529
! Fit after  self-cal, rms=0.873423Jy  sigma=0.011527
! clrmod: Cleared the established, tentative and continuum models.
! Redundant starting model cleared.
uvweight 2,-1
! Uniform weighting binwidth: 2 (pixels).
! Gridding weights will be scaled by errors raised to the power -1.
! Radial weighting is not currently selected.
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=2.908 mas, bmaj=13.65 mas, bpa=-39.94 degrees
! Estimated noise=2002.17 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal doamp, doflt, solint
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! Added new window around map position (0, 0).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0979598 Jy
! Total flux subtracted in 50 components = 0.0979598 Jy
! Clean residual min=-0.013176 max=0.027344 Jy/beam
! Clean residual mean=-0.000309 rms=0.004432 Jy/beam
! Combined flux in latest and established models = 0.0979598 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 2 model components to the UV plane model.
! The established model now contains 2 components and 0.0979598 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.098400Jy  sigma=0.001168
! Fit after  self-cal, rms=0.098400Jy  sigma=0.001168
! Inverting map 
print "****************************************"
! **************************************** 
print "*** Finished Uniform Weighting CLEAN ***"
! *** Finished Uniform Weighting CLEAN *** 
print "****************************************"
! **************************************** 
uvweight 0,-1
! Uniform weighting is not currently selected.
! Gridding weights will be scaled by errors raised to the power -1.
! Radial weighting is not currently selected.
win_mult = win_mult * 1.6
clean_niter = clean_niter * 2
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=4.171 mas, bmaj=14.64 mas, bpa=-39.64 degrees
! Estimated noise=890.322 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal doamp, doflt, solint
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0269985 Jy
! Component: 100  -  total flux cleaned = 0.0356155 Jy
! Total flux subtracted in 100 components = 0.0356155 Jy
! Clean residual min=-0.005154 max=0.005455 Jy/beam
! Clean residual mean=-0.000191 rms=0.001528 Jy/beam
! Combined flux in latest and established models = 0.133575 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 22 model components to the UV plane model.
! The established model now contains 22 components and 0.133575 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.092062Jy  sigma=0.001075
! Fit after  self-cal, rms=0.092045Jy  sigma=0.001075
! Inverting map 
print "****************************************"
! **************************************** 
print "*** Finished Natural Weighting CLEAN ***"
! *** Finished Natural Weighting CLEAN *** 
print "****************************************"
! **************************************** 
gscale true
! Performing overall amplitude self-cal
! 
! Correcting IF 1.
!  Telescope amplitude corrections in sub-array 1:
!   FD        0.99     HH        1.00*    KB        1.00*    KP        1.11     
!   LA        0.92     MK        1.05     NL        0.94     NY        1.00*    
!   OV        0.99     PT        0.95     SC        1.00*    TC        1.00*    
!   WF        0.92     WZ        1.00*    BR        1.00*    
! 
! 
! Correcting IF 2.
!  Telescope amplitude corrections in sub-array 1:
!   FD        0.99     HH        1.00*    KB        1.00*    KP        1.03     
!   LA        0.93     MK        0.98     NL        0.98     NY        1.00*    
!   OV        0.99     PT        0.95     SC        1.00*    TC        1.00*    
!   WF        1.03     WZ        1.00*    BR        1.00*    
! 
! 
! Correcting IF 3.
!  Telescope amplitude corrections in sub-array 1:
!   FD        1.01     HH        1.00*    KB        1.00*    KP        1.05     
!   LA        0.90     MK        1.13     NL        0.98     NY        1.00*    
!   OV        1.03     PT        0.95     SC        1.00*    TC        1.00*    
!   WF        1.12     WZ        1.00*    BR        1.00*    
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   FD        1.07     HH        1.00*    KB        1.00*    KP        1.02     
!   LA        0.92     MK        1.00     NL        0.94     NY        1.00*    
!   OV        0.99     PT        0.94     SC        1.00*    TC        1.00*    
!   WF        1.03     WZ        1.00*    BR        1.00*    
! 
! 
! Fit before self-cal, rms=0.092045Jy  sigma=0.001075
! Fit after  self-cal, rms=0.089896Jy  sigma=0.001068
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=4.221 mas, bmaj=14.75 mas, bpa=-39.79 degrees
! Estimated noise=867.825 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal doamp, doflt, solint
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.000828425 Jy
! Component: 100  -  total flux cleaned = 0.000467936 Jy
! Total flux subtracted in 100 components = 0.000467936 Jy
! Clean residual min=-0.003070 max=0.003855 Jy/beam
! Clean residual mean=-0.000003 rms=0.000961 Jy/beam
! Combined flux in latest and established models = 0.134043 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 7 model components to the UV plane model.
! The established model now contains 29 components and 0.134043 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.089806Jy  sigma=0.001067
! Fit after  self-cal, rms=0.089796Jy  sigma=0.001067
! Inverting map 
dynam = dynam - 1.0
doamp = true
solint = solint * (6.0/3.6)
flux_cutoff = imstat(rms) * dynam
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal doamp, doflt, solint
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.000228771 Jy
! Component: 100  -  total flux cleaned = 7.47369e-05 Jy
! Total flux subtracted in 100 components = 7.47369e-05 Jy
! Clean residual min=-0.002893 max=0.003613 Jy/beam
! Clean residual mean=-0.000005 rms=0.000920 Jy/beam
! Combined flux in latest and established models = 0.134118 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 7 model components to the UV plane model.
! The established model now contains 32 components and 0.134118 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.089759Jy  sigma=0.001066
! Fit after  self-cal, rms=0.090345Jy  sigma=0.001053
! Inverting map and beam 
! Estimated beam: bmin=4.218 mas, bmaj=14.75 mas, bpa=-39.79 degrees
! Estimated noise=871.698 mJy/beam.
doamp = false
solint = solint / (6.0/3.6)
flux_cutoff = imstat(rms) * dynam
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal doamp, doflt, solint
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.000628118 Jy
! Component: 100  -  total flux cleaned = 0.000809852 Jy
! Total flux subtracted in 100 components = 0.000809852 Jy
! Clean residual min=-0.002839 max=0.003499 Jy/beam
! Clean residual mean=-0.000004 rms=0.000907 Jy/beam
! Combined flux in latest and established models = 0.134928 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 13 model components to the UV plane model.
! The established model now contains 41 components and 0.134928 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.090324Jy  sigma=0.001053
! Fit after  self-cal, rms=0.090330Jy  sigma=0.001053
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 0423+237_S
! Writing UV FITS file: 0423+237_S.uvf
! Writing 41 model components to file: 0423+237_S.mod
! wwins: Wrote 1 windows to 0423+237_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 4.218 x 14.75 at -39.79 degrees (North through East)
! Clean map  min=-0.0028152  max=0.12775 Jy/beam
! Writing clean map to FITS file: 0423+237_S.fits
! Writing difmap environment to: 0423+237_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 0423+237_S]
device 0423+237_Suv.ps/vps,1,2
! Attempting to open device: '0423+237_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 0423+237_Sim.ps/vps
! Attempting to open device: '0423+237_Sim.ps/vps'
uvweight 0,-1
! Uniform weighting is not currently selected.
! Gridding weights will be scaled by errors raised to the power -1.
! Radial weighting is not currently selected.
loglevs -1,2048,2
! The new contour levels are:
!  -1 1 2 4 8 16 32 64 128 256 512 1024 2048
cmul = imstat(rms)*3
! Inverting map and beam 
! Estimated beam: bmin=4.218 mas, bmaj=14.75 mas, bpa=-39.79 degrees
! Estimated noise=871.698 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 4.218 x 14.75 at -39.79 degrees (North through East)
! Clean map  min=-0.0028152  max=0.12775 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file 0423+237_S.log closed on Tue Nov  6 09:39:08 2007