! Started logfile: 0920-397_S.log on Wed Oct 31 11:13:49 2007
observe 0920-397_S.edt
! Reading UV FITS file: 0920-397_S.edt
! AN table 1: 188 integrations on 105 of 105 possible baselines.
! Apparent sampling: 0.0462513 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 0920-397
! 
! 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 3652 visibilities.
![@gonzo7-0.4 0920-397_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 2291 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 2294 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 2288 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 2291 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.553544Jy  sigma=0.003467
! Fit after  self-cal, rms=0.480108Jy  sigma=0.003528
! 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=2.585 mas, bmaj=6.917 mas, bpa=12.77 degrees
! Estimated noise=3267.59 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 = 0.855569 Jy
! Total flux subtracted in 50 components = 0.855569 Jy
! Clean residual min=-0.136275 max=0.267551 Jy/beam
! Clean residual mean=-0.000628 rms=0.042938 Jy/beam
! Combined flux in latest and established models = 0.855569 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 6 model components to the UV plane model.
! The established model now contains 6 components and 0.855569 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.545021Jy  sigma=0.004186
! Fit after  self-cal, rms=0.544940Jy  sigma=0.004186
! 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=4.021 mas, bmaj=9.749 mas, bpa=10.25 degrees
! Estimated noise=1546.88 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 = 0.299856 Jy
! Component: 100  -  total flux cleaned = 0.41074 Jy
! Total flux subtracted in 100 components = 0.41074 Jy
! Clean residual min=-0.121939 max=0.136930 Jy/beam
! Clean residual mean=0.001259 rms=0.037352 Jy/beam
! Combined flux in latest and established models = 1.26631 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 24 model components to the UV plane model.
! The established model now contains 27 components and 1.26631 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.390121Jy  sigma=0.002765
! Fit after  self-cal, rms=0.390100Jy  sigma=0.002765
! Inverting map 
print "****************************************"
! **************************************** 
print "*** Finished Natural Weighting CLEAN ***"
! *** Finished Natural Weighting CLEAN *** 
print "****************************************"
! **************************************** 
gscale true
! Performing overall amplitude self-cal
! 
! Correcting IF 1.
!  A total of 174 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   FD        0.96     HH        1.00*    KB        1.00*    KP        0.88     
!   LA        0.98     MK        1.00*    NL        2.09     NY        1.00*    
!   OV        1.09     PT        1.04     SC        0.97     TC        1.00*    
!   WF        0.87     WZ        1.00*    BR        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 171 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   FD        0.95     HH        1.00*    KB        1.00*    KP        0.91     
!   LA        0.98     MK        1.00*    NL        2.13     NY        1.00*    
!   OV        1.07     PT        1.02     SC        0.96     TC        1.00*    
!   WF        0.89     WZ        1.00*    BR        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 177 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   FD        0.96     HH        1.00*    KB        1.00*    KP        0.85     
!   LA        0.98     MK        1.00*    NL        2.11     NY        1.00*    
!   OV        1.01     PT        1.02     SC        0.94     TC        1.00*    
!   WF        0.84     WZ        1.00*    BR        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 174 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   FD        0.96     HH        1.00*    KB        1.00*    KP        0.89     
!   LA        0.97     MK        1.00*    NL        2.06     NY        1.00*    
!   OV        1.01     PT        1.00     SC        0.94     TC        1.00*    
!   WF        0.84     WZ        1.00*    BR        1.00*    
! 
! 
! Fit before self-cal, rms=0.390100Jy  sigma=0.002765
! Fit after  self-cal, rms=0.248957Jy  sigma=0.001883
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=4.72 mas, bmaj=17.01 mas, bpa=9.291 degrees
! Estimated noise=1553.67 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 = 0.0170522 Jy
! Component: 100  -  total flux cleaned = 0.0160672 Jy
! Total flux subtracted in 100 components = 0.0160672 Jy
! Clean residual min=-0.066512 max=0.064350 Jy/beam
! Clean residual mean=0.002301 rms=0.019610 Jy/beam
! Combined flux in latest and established models = 1.28238 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 10 model components to the UV plane model.
! The established model now contains 35 components and 1.28238 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.241676Jy  sigma=0.001855
! Fit after  self-cal, rms=0.241771Jy  sigma=0.001855
! 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 = -0.000793943 Jy
! Component: 100  -  total flux cleaned = -0.00206853 Jy
! Total flux subtracted in 100 components = -0.00206853 Jy
! Clean residual min=-0.066582 max=0.063980 Jy/beam
! Clean residual mean=0.002280 rms=0.019467 Jy/beam
! Combined flux in latest and established models = 1.28031 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 10 model components to the UV plane model.
! The established model now contains 40 components and 1.28031 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.239297Jy  sigma=0.001842
! Fit after  self-cal, rms=0.152010Jy  sigma=0.001074
! Inverting map and beam 
! Estimated beam: bmin=4.687 mas, bmaj=16.75 mas, bpa=8.82 degrees
! Estimated noise=1541.45 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 = -0.000474743 Jy
! Component: 100  -  total flux cleaned = -0.000544098 Jy
! Total flux subtracted in 100 components = -0.000544098 Jy
! Clean residual min=-0.009161 max=0.013552 Jy/beam
! Clean residual mean=0.000338 rms=0.003211 Jy/beam
! Combined flux in latest and established models = 1.27976 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 6 model components to the UV plane model.
! The established model now contains 45 components and 1.27976 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.151968Jy  sigma=0.001073
! Fit after  self-cal, rms=0.151977Jy  sigma=0.001073
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 0920-397_S
! Writing UV FITS file: 0920-397_S.uvf
! Writing 45 model components to file: 0920-397_S.mod
! wwins: Wrote 1 windows to 0920-397_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 4.687 x 16.75 at 8.82 degrees (North through East)
! Clean map  min=-0.0090769  max=1.1733 Jy/beam
! Writing clean map to FITS file: 0920-397_S.fits
! Writing difmap environment to: 0920-397_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 0920-397_S]
device 0920-397_Suv.ps/vps,1,2
! Attempting to open device: '0920-397_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 0920-397_Sim.ps/vps
! Attempting to open device: '0920-397_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=4.687 mas, bmaj=16.75 mas, bpa=8.82 degrees
! Estimated noise=1541.45 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 4.687 x 16.75 at 8.82 degrees (North through East)
! Clean map  min=-0.0090769  max=1.1733 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file 0920-397_S.log closed on Wed Oct 31 11:14:05 2007