! Started logfile: 0955+476_X.log on Wed May 14 12:09:14 2008
observe 0955+476_X.edt
! Reading UV FITS file: 0955+476_X.edt
! AN table 1: 97 integrations on 153 of 153 possible baselines.
! Apparent sampling: 0.293848 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 0955+476
! 
! 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  8.40997e+09        8e+06          1        8e+06
!  02        2  8.47997e+09        8e+06          1        8e+06
!  03        3  8.79497e+09        8e+06          1        8e+06
!  04        4  8.89997e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 938 lines of history.
! 
! Reading 17444 visibilities.
![@gonzo8-0.1 0955+476_X]
print "***********************************"
! *********************************** 
print "*** Using gonzo instruction set ***"
! *** Using gonzo instruction set *** 
print "***********************************"
! *********************************** 
float field_size
field_size = 1024
float field_cell
field_cell = 0.1
integer clean_niter
clean_niter = 50
float clean_gain
clean_gain = 0.03
float dynam
dynam = 8.0
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 0.100x0.100 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 1077 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 1070 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 1068 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 1077 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.235418Jy  sigma=0.002823
! Fit after  self-cal, rms=0.233444Jy  sigma=0.002807
! 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=0.5794 mas, bmaj=0.7268 mas, bpa=20.42 degrees
! Estimated noise=927.389 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 = 0.600782 Jy
! Total flux subtracted in 50 components = 0.600782 Jy
! Clean residual min=-0.023657 max=0.167598 Jy/beam
! Clean residual mean=0.000049 rms=0.006618 Jy/beam
! Combined flux in latest and established models = 0.600782 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 1 model components to the UV plane model.
! The established model now contains 1 components and 0.600782 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.251635Jy  sigma=0.003718
! Fit after  self-cal, rms=0.251635Jy  sigma=0.003718
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.150114 Jy
! Total flux subtracted in 50 components = 0.150114 Jy
! Clean residual min=-0.013361 max=0.061612 Jy/beam
! Clean residual mean=0.000048 rms=0.003497 Jy/beam
! Combined flux in latest and established models = 0.750896 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 9 model components to the UV plane model.
! The established model now contains 9 components and 0.750896 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.146300Jy  sigma=0.002122
! Fit after  self-cal, rms=0.146301Jy  sigma=0.002121
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0645965 Jy
! Total flux subtracted in 50 components = 0.0645965 Jy
! Clean residual min=-0.009787 max=0.028370 Jy/beam
! Clean residual mean=0.000047 rms=0.002499 Jy/beam
! Combined flux in latest and established models = 0.815492 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 10 components and 0.815492 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.117453Jy  sigma=0.001613
! Fit after  self-cal, rms=0.117457Jy  sigma=0.001613
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0323482 Jy
! Total flux subtracted in 50 components = 0.0323482 Jy
! Clean residual min=-0.009434 max=0.016421 Jy/beam
! Clean residual mean=0.000047 rms=0.002163 Jy/beam
! Combined flux in latest and established models = 0.847841 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 17 components and 0.847841 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.108942Jy  sigma=0.001436
! Fit after  self-cal, rms=0.108940Jy  sigma=0.001435
! 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=0.7872 mas, bmaj=0.9395 mas, bpa=40.65 degrees
! Estimated noise=499.548 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 = 0.029037 Jy
! Component: 100  -  total flux cleaned = 0.0420536 Jy
! Total flux subtracted in 100 components = 0.0420536 Jy
! Clean residual min=-0.006931 max=0.009612 Jy/beam
! Clean residual mean=0.000121 rms=0.001914 Jy/beam
! Combined flux in latest and established models = 0.889894 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 41 model components to the UV plane model.
! The established model now contains 48 components and 0.889894 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.104686Jy  sigma=0.001304
! Fit after  self-cal, rms=0.104682Jy  sigma=0.001304
! 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:
!   BR        0.96     FD        1.01     GC        0.97     HH        1.00*    
!   HN        0.99     KK        1.03     KP        0.98     LA        1.00     
!   MC        1.00*    MK        1.00     NL        0.98     NY        0.95     
!   ON        0.97     OV        0.98     PT        0.99     SC        1.03     
!   WF        1.04     WZ        1.18     
! 
! 
! Correcting IF 2.
!  A total of 18 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.97     FD        1.00     GC        0.99     HH        1.00*    
!   HN        0.98     KK        1.05     KP        0.98     LA        1.00     
!   MC        1.06     MK        0.99     NL        0.97     NY        0.95     
!   ON        1.01     OV        0.97     PT        1.01     SC        1.02     
!   WF        1.03     WZ        1.16     
! 
! 
! Correcting IF 3.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.98     FD        1.02     GC        1.00     HH        1.00*    
!   HN        0.99     KK        1.04     KP        1.00     LA        1.01     
!   MC        1.05     MK        0.97     NL        0.98     NY        0.95     
!   ON        1.01     OV        0.98     PT        1.00     SC        1.06     
!   WF        1.13     WZ        1.15     
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.98     FD        1.00     GC        1.03     HH        1.00*    
!   HN        0.97     KK        1.04     KP        0.99     LA        1.01     
!   MC        1.09     MK        0.96     NL        1.00     NY        0.97     
!   ON        1.00     OV        0.99     PT        1.02     SC        1.11     
!   WF        1.10     WZ        1.14     
! 
! 
! Fit before self-cal, rms=0.104682Jy  sigma=0.001304
! Fit after  self-cal, rms=0.098433Jy  sigma=0.001208
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=0.8024 mas, bmaj=0.943 mas, bpa=41.13 degrees
! Estimated noise=497.475 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 = -0.00507594 Jy
! Component: 100  -  total flux cleaned = -0.00520991 Jy
! Total flux subtracted in 100 components = -0.00520991 Jy
! Clean residual min=-0.005616 max=0.007585 Jy/beam
! Clean residual mean=0.000142 rms=0.001568 Jy/beam
! Combined flux in latest and established models = 0.884684 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 51 components and 0.884685 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.097959Jy  sigma=0.001207
! Fit after  self-cal, rms=0.097964Jy  sigma=0.001207
! 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 = -1.09185e-05 Jy
! Component: 100  -  total flux cleaned = 7.12052e-05 Jy
! Total flux subtracted in 100 components = 7.12052e-05 Jy
! Clean residual min=-0.005680 max=0.007575 Jy/beam
! Clean residual mean=0.000142 rms=0.001566 Jy/beam
! Combined flux in latest and established models = 0.884756 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 9 model components to the UV plane model.
! The established model now contains 53 components and 0.884756 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.097869Jy  sigma=0.001206
! Fit after  self-cal, rms=0.088416Jy  sigma=0.001055
! Inverting map and beam 
! Estimated beam: bmin=0.8018 mas, bmaj=0.9426 mas, bpa=41.09 degrees
! Estimated noise=498.182 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)
! Added new window around map position (0.5, -1).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00444242 Jy
! Component: 100  -  total flux cleaned = 0.00607951 Jy
! Total flux subtracted in 100 components = 0.00607951 Jy
! Clean residual min=-0.002437 max=0.002310 Jy/beam
! Clean residual mean=0.000056 rms=0.000562 Jy/beam
! Combined flux in latest and established models = 0.890835 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 12 model components to the UV plane model.
! The established model now contains 63 components and 0.890835 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.088202Jy  sigma=0.001052
! Fit after  self-cal, rms=0.088186Jy  sigma=0.001052
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 0955+476_X
! Writing UV FITS file: 0955+476_X.uvf
! Writing 63 model components to file: 0955+476_X.mod
! wwins: Wrote 2 windows to 0955+476_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.8018 x 0.9426 at 41.09 degrees (North through East)
! Clean map  min=-0.0023833  max=0.8128 Jy/beam
! Writing clean map to FITS file: 0955+476_X.fits
! Writing difmap environment to: 0955+476_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 0955+476_X]
device 0955+476_Xuv.ps/vps,1,2
! Attempting to open device: '0955+476_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 0955+476_Xim.ps/vps
! Attempting to open device: '0955+476_Xim.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=0.8018 mas, bmaj=0.9426 mas, bpa=41.09 degrees
! Estimated noise=498.182 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.8018 x 0.9426 at 41.09 degrees (North through East)
! Clean map  min=-0.0023833  max=0.8128 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo8-0.1]
quit
! Quitting program
! Log file 0955+476_X.log closed on Wed May 14 12:09:25 2008