! Started logfile: 0657+172_X.log on Wed May 14 11:38:13 2008
observe 0657+172_X.edt
! Reading UV FITS file: 0657+172_X.edt
! AN table 1: 54 integrations on 153 of 153 possible baselines.
! Apparent sampling: 0.138586 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 0657+172
! 
! 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 4580 visibilities.
![@gonzo8-0.1 0657+172_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 785 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 794 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 783 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 790 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.292235Jy  sigma=0.003574
! Fit after  self-cal, rms=0.290041Jy  sigma=0.003573
! 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=0.6511 mas, bmaj=1.06 mas, bpa=-5.282 degrees
! Estimated noise=1832.38 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 = 0.552886 Jy
! Total flux subtracted in 50 components = 0.552886 Jy
! Clean residual min=-0.029003 max=0.154196 Jy/beam
! Clean residual mean=-0.000085 rms=0.009441 Jy/beam
! Combined flux in latest and established models = 0.552886 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 0.552886 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.222899Jy  sigma=0.003248
! Fit after  self-cal, rms=0.222899Jy  sigma=0.003248
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.134444 Jy
! Total flux subtracted in 50 components = 0.134444 Jy
! Clean residual min=-0.018059 max=0.054873 Jy/beam
! Clean residual mean=-0.000041 rms=0.005170 Jy/beam
! Combined flux in latest and established models = 0.68733 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 0.687329 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.132717Jy  sigma=0.001919
! Fit after  self-cal, rms=0.132702Jy  sigma=0.001919
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0587779 Jy
! Total flux subtracted in 50 components = 0.0587779 Jy
! Clean residual min=-0.013448 max=0.026879 Jy/beam
! Clean residual mean=-0.000024 rms=0.003784 Jy/beam
! Combined flux in latest and established models = 0.746107 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 4 model components to the UV plane model.
! The established model now contains 10 components and 0.746107 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.108601Jy  sigma=0.001504
! Fit after  self-cal, rms=0.108559Jy  sigma=0.001504
! 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=0.7788 mas, bmaj=1.244 mas, bpa=-1.291 degrees
! Estimated noise=1133.61 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 = 0.0463039 Jy
! Component: 100  -  total flux cleaned = 0.0677865 Jy
! Total flux subtracted in 100 components = 0.0677865 Jy
! Clean residual min=-0.009798 max=0.019725 Jy/beam
! Clean residual mean=0.000004 rms=0.003141 Jy/beam
! Combined flux in latest and established models = 0.813894 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 27 model components to the UV plane model.
! The established model now contains 34 components and 0.813894 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.094886Jy  sigma=0.001205
! Fit after  self-cal, rms=0.094888Jy  sigma=0.001205
! 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 9 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.95     FD        1.07     GC        0.99     HH        1.00*    
!   HN        0.96     KK        1.01     KP        0.97     LA        0.97     
!   MC        1.00*    MK        1.04     NL        0.97     NY        1.05     
!   ON        1.04     OV        0.97     PT        1.04     SC        0.97     
!   WF        1.00*    WZ        1.01     
! 
! 
! Correcting IF 2.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.97     FD        1.09     GC        1.00     HH        1.00*    
!   HN        0.95     KK        1.02     KP        0.98     LA        0.99     
!   MC        1.18     MK        1.02     NL        0.95     NY        1.02     
!   ON        1.05     OV        0.96     PT        1.05     SC        0.98     
!   WF        1.00*    WZ        1.00*    
! 
! 
! 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        1.08     GC        1.01     HH        1.00*    
!   HN        0.96     KK        1.02     KP        1.00     LA        0.99     
!   MC        1.19     MK        1.02     NL        0.98     NY        1.04     
!   ON        1.04     OV        0.97     PT        1.06     SC        1.00     
!   WF        1.00*    WZ        1.18     
! 
! 
! Correcting IF 4.
!  A total of 6 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.97     FD        1.09     GC        1.08     HH        1.00*    
!   HN        0.95     KK        1.03     KP        1.00     LA        0.98     
!   MC        1.25     MK        0.99     NL        1.00     NY        1.03     
!   ON        1.01     OV        0.97     PT        1.02     SC        1.05     
!   WF        1.00*    WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.094888Jy  sigma=0.001205
! Fit after  self-cal, rms=0.088042Jy  sigma=0.001051
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=0.794 mas, bmaj=1.26 mas, bpa=-0.4196 degrees
! Estimated noise=1131.51 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 = -0.00575912 Jy
! Component: 100  -  total flux cleaned = -0.00615545 Jy
! Total flux subtracted in 100 components = -0.00615545 Jy
! Clean residual min=-0.006738 max=0.008127 Jy/beam
! Clean residual mean=0.000011 rms=0.001810 Jy/beam
! Combined flux in latest and established models = 0.807738 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 41 components and 0.807738 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.087554Jy  sigma=0.001048
! Fit after  self-cal, rms=0.087575Jy  sigma=0.001048
! 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 = -0.000205632 Jy
! Component: 100  -  total flux cleaned = -0.000360408 Jy
! Total flux subtracted in 100 components = -0.000360408 Jy
! Clean residual min=-0.006730 max=0.008135 Jy/beam
! Clean residual mean=0.000010 rms=0.001808 Jy/beam
! Combined flux in latest and established models = 0.807378 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 8 model components to the UV plane model.
! The established model now contains 43 components and 0.807378 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.087462Jy  sigma=0.001047
! Fit after  self-cal, rms=0.083792Jy  sigma=0.000995
! Inverting map and beam 
! Estimated beam: bmin=0.7971 mas, bmaj=1.259 mas, bpa=-0.5831 degrees
! Estimated noise=1131.06 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 (-1.2, -0.6).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00458123 Jy
! Component: 100  -  total flux cleaned = 0.00459609 Jy
! Total flux subtracted in 100 components = 0.00459609 Jy
! Clean residual min=-0.004729 max=0.005271 Jy/beam
! Clean residual mean=-0.000009 rms=0.001258 Jy/beam
! Combined flux in latest and established models = 0.811974 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 11 model components to the UV plane model.
! The established model now contains 54 components and 0.811974 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.083242Jy  sigma=0.000986
! Fit after  self-cal, rms=0.083203Jy  sigma=0.000986
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 0657+172_X
! Writing UV FITS file: 0657+172_X.uvf
! Writing 54 model components to file: 0657+172_X.mod
! wwins: Wrote 2 windows to 0657+172_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.7971 x 1.259 at -0.5831 degrees (North through East)
! Clean map  min=-0.0045521  max=0.7392 Jy/beam
! Writing clean map to FITS file: 0657+172_X.fits
! Writing difmap environment to: 0657+172_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 0657+172_X]
device 0657+172_Xuv.ps/vps,1,2
! Attempting to open device: '0657+172_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 0657+172_Xim.ps/vps
! Attempting to open device: '0657+172_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=0.7971 mas, bmaj=1.259 mas, bpa=-0.5831 degrees
! Estimated noise=1131.06 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.7971 x 1.259 at -0.5831 degrees (North through East)
! Clean map  min=-0.0045521  max=0.7392 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo8-0.1]
quit
! Quitting program
! Log file 0657+172_X.log closed on Wed May 14 11:38:23 2008