! Started logfile: 1656+477_X.log on Wed Aug 13 13:00:25 2008
observe 1656+477_X.edt
! Reading UV FITS file: 1656+477_X.edt
! AN table 1: 109 integrations on 171 of 171 possible baselines.
! AN table 2: 28 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.178042 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1656+477
! 
! 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 1526 lines of history.
! 
! Reading 16684 visibilities.
![@gonzo7-0.1 1656+477_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 = 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 0.100x0.100 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 1433 telescope corrections were flagged in sub-array 1.
!  A total of 348 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 2.
!  A total of 1433 telescope corrections were flagged in sub-array 1.
!  A total of 349 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 3.
!  A total of 1433 telescope corrections were flagged in sub-array 1.
!  A total of 348 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 4.
!  A total of 1433 telescope corrections were flagged in sub-array 1.
!  A total of 349 telescope corrections were flagged in sub-array 2.
! 
! Fit before self-cal, rms=0.590738Jy  sigma=8.453775
! Fit after  self-cal, rms=0.587729Jy  sigma=8.422693
! 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=0.5581 mas, bmaj=0.6353 mas, bpa=11.82 degrees
! Estimated noise=0.769277 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 = 0.402627 Jy
! Total flux subtracted in 50 components = 0.402627 Jy
! Clean residual min=-0.035336 max=0.185894 Jy/beam
! Clean residual mean=-0.000148 rms=0.010835 Jy/beam
! Combined flux in latest and established models = 0.402627 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 5 model components to the UV plane model.
! The established model now contains 5 components and 0.402627 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.374634Jy  sigma=6.624020
! Fit after  self-cal, rms=0.374657Jy  sigma=6.623405
! Inverting map 
! Added new window around map position (-0.1, 1.4).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.175338 Jy
! Total flux subtracted in 50 components = 0.175338 Jy
! Clean residual min=-0.025904 max=0.084121 Jy/beam
! Clean residual mean=-0.000151 rms=0.007720 Jy/beam
! Combined flux in latest and established models = 0.577964 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 8 model components to the UV plane model.
! The established model now contains 12 components and 0.577964 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.291018Jy  sigma=4.889611
! Fit after  self-cal, rms=0.281959Jy  sigma=4.784162
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.112577 Jy
! Total flux subtracted in 50 components = 0.112577 Jy
! Clean residual min=-0.019073 max=0.056993 Jy/beam
! Clean residual mean=-0.000152 rms=0.005711 Jy/beam
! Combined flux in latest and established models = 0.690541 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 14 model components to the UV plane model.
! The established model now contains 21 components and 0.690541 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.235171Jy  sigma=3.850044
! Fit after  self-cal, rms=0.231079Jy  sigma=3.806951
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0775404 Jy
! Total flux subtracted in 50 components = 0.0775404 Jy
! Clean residual min=-0.015755 max=0.040659 Jy/beam
! Clean residual mean=-0.000153 rms=0.004499 Jy/beam
! Combined flux in latest and established models = 0.768081 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 24 components and 0.768081 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.204315Jy  sigma=3.331890
! Fit after  self-cal, rms=0.202392Jy  sigma=3.311924
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0552362 Jy
! Total flux subtracted in 50 components = 0.0552362 Jy
! Clean residual min=-0.014083 max=0.029710 Jy/beam
! Clean residual mean=-0.000154 rms=0.003750 Jy/beam
! Combined flux in latest and established models = 0.823318 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 17 model components to the UV plane model.
! The established model now contains 30 components and 0.823318 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.187248Jy  sigma=3.102001
! Fit after  self-cal, rms=0.186354Jy  sigma=3.092251
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0409529 Jy
! Total flux subtracted in 50 components = 0.0409529 Jy
! Clean residual min=-0.012586 max=0.022806 Jy/beam
! Clean residual mean=-0.000155 rms=0.003271 Jy/beam
! Combined flux in latest and established models = 0.86427 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 16 model components to the UV plane model.
! The established model now contains 35 components and 0.86427 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.177576Jy  sigma=3.020803
! Fit after  self-cal, rms=0.177200Jy  sigma=3.015650
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0309119 Jy
! Total flux subtracted in 50 components = 0.0309119 Jy
! Clean residual min=-0.011628 max=0.019113 Jy/beam
! Clean residual mean=-0.000155 rms=0.002965 Jy/beam
! Combined flux in latest and established models = 0.895182 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 38 components and 0.895182 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.172180Jy  sigma=3.012676
! Fit after  self-cal, rms=0.172084Jy  sigma=3.010338
! 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=0.6786 mas, bmaj=0.7529 mas, bpa=9.036 degrees
! Estimated noise=0.464196 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 = 0.0317627 Jy
! Component: 100  -  total flux cleaned = 0.0495844 Jy
! Total flux subtracted in 100 components = 0.0495844 Jy
! Clean residual min=-0.016820 max=0.017963 Jy/beam
! Clean residual mean=-0.001421 rms=0.004663 Jy/beam
! Combined flux in latest and established models = 0.944767 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 18 model components to the UV plane model.
! The established model now contains 45 components and 0.944767 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.167187Jy  sigma=3.097019
! Fit after  self-cal, rms=0.167121Jy  sigma=3.091564
! 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 57 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.97     FD        0.94     GC        1.01     HH        1.00*    
!   HN        1.01     KK        0.84     KP        0.98     LA        0.97     
!   MA        1.00*    MK        0.95     NL        0.97     NY        0.96     
!   OV        0.97     PT        0.92     SC        1.01     TS        0.99     
!   WF        0.99     WZ        1.18     GG        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.03     FD        1.27     GC        0.95     HH        1.00*    
!   HN        1.08     KK        1.00*    KP        1.00*    LA        0.95     
!   MA        0.85     MK        1.00*    NL        1.17     NY        0.86     
!   OV        1.00*    PT        1.68     SC        1.20     TS        1.00*    
!   WF        1.07     WZ        1.00*    GG        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 57 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.98     FD        0.94     GC        1.00     HH        1.00*    
!   HN        1.01     KK        0.85     KP        0.97     LA        0.97     
!   MA        1.00*    MK        0.95     NL        0.96     NY        0.98     
!   OV        0.94     PT        0.94     SC        1.01     TS        1.01     
!   WF        0.97     WZ        1.19     GG        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.09     FD        1.48     GC        1.03     HH        1.00*    
!   HN        1.00     KK        1.00*    KP        1.00*    LA        0.95     
!   MA        0.90     MK        1.00*    NL        0.94     NY        0.87     
!   OV        1.00*    PT        1.83     SC        1.06     TS        1.00*    
!   WF        1.13     WZ        1.00*    GG        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 57 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.97     FD        0.93     GC        0.98     HH        1.00*    
!   HN        1.02     KK        0.95     KP        0.97     LA        0.96     
!   MA        1.00*    MK        0.95     NL        1.02     NY        1.00     
!   OV        0.96     PT        0.96     SC        1.04     TS        1.00     
!   WF        0.97     WZ        1.15     GG        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.06     FD        1.44     GC        1.03     HH        1.00*    
!   HN        0.84     KK        1.00*    KP        1.00*    LA        1.10     
!   MA        0.88     MK        1.00*    NL        1.03     NY        0.91     
!   OV        1.00*    PT        1.64     SC        0.98     TS        1.00*    
!   WF        1.08     WZ        1.00*    GG        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 57 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.99     FD        0.94     GC        0.97     HH        1.00*    
!   HN        1.01     KK        0.91     KP        0.97     LA        0.97     
!   MA        1.00*    MK        0.95     NL        0.99     NY        1.01     
!   OV        0.97     PT        0.94     SC        1.03     TS        1.00     
!   WF        0.92     WZ        1.17     GG        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.05     FD        1.49     GC        1.01     HH        1.00*    
!   HN        0.86     KK        1.00*    KP        1.00*    LA        1.35     
!   MA        0.84     MK        1.00*    NL        1.03     NY        0.85     
!   OV        1.00*    PT        1.76     SC        0.97     TS        1.00*    
!   WF        1.09     WZ        1.00*    GG        1.00*    
! 
! 
! Fit before self-cal, rms=0.167121Jy  sigma=3.091564
! Fit after  self-cal, rms=0.140763Jy  sigma=1.562656
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=0.687 mas, bmaj=0.759 mas, bpa=6.621 degrees
! Estimated noise=0.462479 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 = 0.00763233 Jy
! Component: 100  -  total flux cleaned = 0.00943054 Jy
! Total flux subtracted in 100 components = 0.00943054 Jy
! Clean residual min=-0.005181 max=0.006571 Jy/beam
! Clean residual mean=0.000170 rms=0.001144 Jy/beam
! Combined flux in latest and established models = 0.954197 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 0.954197 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.139772Jy  sigma=1.553844
! Fit after  self-cal, rms=0.139898Jy  sigma=1.552191
! 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)
! Added new window around map position (-2.8, 7.1).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00653408 Jy
! Component: 100  -  total flux cleaned = 0.00958744 Jy
! Total flux subtracted in 100 components = 0.00958744 Jy
! Clean residual min=-0.004953 max=0.004626 Jy/beam
! Clean residual mean=0.000129 rms=0.001039 Jy/beam
! Combined flux in latest and established models = 0.963785 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 21 model components to the UV plane model.
! The established model now contains 67 components and 0.963784 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.139434Jy  sigma=1.545159
! Fit after  self-cal, rms=0.136880Jy  sigma=1.480656
! Inverting map and beam 
! Estimated beam: bmin=0.686 mas, bmaj=0.7559 mas, bpa=2.964 degrees
! Estimated noise=0.462901 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 = 0.00381173 Jy
! Component: 100  -  total flux cleaned = 0.00575553 Jy
! Total flux subtracted in 100 components = 0.00575553 Jy
! Clean residual min=-0.002783 max=0.003315 Jy/beam
! Clean residual mean=0.000119 rms=0.000755 Jy/beam
! Combined flux in latest and established models = 0.96954 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 21 model components to the UV plane model.
! The established model now contains 77 components and 0.96954 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.136593Jy  sigma=1.478958
! Fit after  self-cal, rms=0.136638Jy  sigma=1.477496
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1656+477_X
! Writing UV FITS file: 1656+477_X.uvf
! Writing 77 model components to file: 1656+477_X.mod
! wwins: Wrote 3 windows to 1656+477_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.686 x 0.7559 at 2.964 degrees (North through East)
! Clean map  min=-0.0027093  max=0.48377 Jy/beam
! Writing clean map to FITS file: 1656+477_X.fits
! Writing difmap environment to: 1656+477_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1656+477_X]
device 1656+477_Xuv.ps/vps,1,2
! Attempting to open device: '1656+477_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1656+477_Xim.ps/vps
! Attempting to open device: '1656+477_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=0.686 mas, bmaj=0.7559 mas, bpa=2.964 degrees
! Estimated noise=0.462901 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.686 x 0.7559 at 2.964 degrees (North through East)
! Clean map  min=-0.0027093  max=0.48377 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.1]
quit
! Quitting program
! Log file 1656+477_X.log closed on Wed Aug 13 13:00:39 2008