! Started logfile: 1656+477_S.log on Fri Aug 22 11:05:09 2008
observe 1656+477_S.edt
! Reading UV FITS file: 1656+477_S.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  2.22497e+09        8e+06          1        8e+06
!  02        2  2.24497e+09        8e+06          1        8e+06
!  03        3  2.33497e+09        8e+06          1        8e+06
!  04        4  2.36497e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 1615 lines of history.
! 
! Reading 16684 visibilities.
![@gonzo7-0.4 1656+477_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 1436 telescope corrections were flagged in sub-array 1.
!  A total of 373 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 2.
!  A total of 1436 telescope corrections were flagged in sub-array 1.
!  A total of 352 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 3.
!  A total of 1437 telescope corrections were flagged in sub-array 1.
!  A total of 357 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 4.
!  A total of 1436 telescope corrections were flagged in sub-array 1.
!  A total of 359 telescope corrections were flagged in sub-array 2.
! 
! Fit before self-cal, rms=0.294171Jy  sigma=4.310685
! Fit after  self-cal, rms=0.292921Jy  sigma=4.310791
! 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=2.107 mas, bmaj=2.448 mas, bpa=-4.262 degrees
! Estimated noise=0.70517 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 = 0.578925 Jy
! Total flux subtracted in 50 components = 0.578925 Jy
! Clean residual min=-0.026065 max=0.161512 Jy/beam
! Clean residual mean=-0.000029 rms=0.007530 Jy/beam
! Combined flux in latest and established models = 0.578925 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 0.578925 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.270070Jy  sigma=4.645252
! Fit after  self-cal, rms=0.270070Jy  sigma=4.645252
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.155786 Jy
! Total flux subtracted in 50 components = 0.155786 Jy
! Clean residual min=-0.014304 max=0.067804 Jy/beam
! Clean residual mean=-0.000022 rms=0.004089 Jy/beam
! Combined flux in latest and established models = 0.734712 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 0.734712 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.178171Jy  sigma=2.764519
! Fit after  self-cal, rms=0.178120Jy  sigma=2.763778
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0718026 Jy
! Total flux subtracted in 50 components = 0.0718025 Jy
! Clean residual min=-0.013096 max=0.042595 Jy/beam
! Clean residual mean=-0.000019 rms=0.002906 Jy/beam
! Combined flux in latest and established models = 0.806514 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 11 components and 0.806514 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.150701Jy  sigma=2.126952
! Fit after  self-cal, rms=0.150683Jy  sigma=2.126449
! Inverting map 
! Added new window around map position (-2.4, 5.6).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0417838 Jy
! Total flux subtracted in 50 components = 0.0417838 Jy
! Clean residual min=-0.011898 max=0.020624 Jy/beam
! Clean residual mean=-0.000016 rms=0.002394 Jy/beam
! Combined flux in latest and established models = 0.848298 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 13 components and 0.848298 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.139071Jy  sigma=1.866149
! Fit after  self-cal, rms=0.138445Jy  sigma=1.857778
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0249255 Jy
! Total flux subtracted in 50 components = 0.0249255 Jy
! Clean residual min=-0.011186 max=0.014781 Jy/beam
! Clean residual mean=-0.000014 rms=0.002144 Jy/beam
! Combined flux in latest and established models = 0.873223 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 0.873223 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.133685Jy  sigma=1.745723
! Fit after  self-cal, rms=0.133439Jy  sigma=1.742893
! 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=2.489 mas, bmaj=2.913 mas, bpa=-9.626 degrees
! Estimated noise=0.440003 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 = 0.0271688 Jy
! Component: 100  -  total flux cleaned = 0.042899 Jy
! Total flux subtracted in 100 components = 0.042899 Jy
! Clean residual min=-0.008399 max=0.015787 Jy/beam
! Clean residual mean=0.000136 rms=0.002363 Jy/beam
! Combined flux in latest and established models = 0.916122 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 26 model components to the UV plane model.
! The established model now contains 34 components and 0.916122 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.128603Jy  sigma=1.629901
! Fit after  self-cal, rms=0.128247Jy  sigma=1.621138
! 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        1.02     FD        0.99     GC        1.05     HH        1.00*    
!   HN        1.03     KK        0.86     KP        0.97     LA        0.98     
!   MA        1.00*    MK        1.01     NL        0.99     NY        0.99     
!   OV        0.99     PT        0.98     SC        1.02     TS        0.98     
!   WF        0.98     WZ        1.05     GG        1.00*    
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.90     FD        1.12     GC        1.07     HH        1.00*    
!   HN        0.93     KK        1.00*    KP        1.00*    LA        1.07     
!   MA        1.76     MK        1.00*    NL        0.92     NY        1.14     
!   OV        1.00*    PT        1.06     SC        0.77     TS        1.00*    
!   WF        1.09     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        1.01     FD        0.99     GC        1.03     HH        1.00*    
!   HN        1.01     KK        0.89     KP        1.01     LA        0.99     
!   MA        1.00*    MK        0.99     NL        1.02     NY        0.98     
!   OV        1.00     PT        1.00     SC        1.05     TS        0.97     
!   WF        1.01     WZ        1.09     GG        1.00*    
! 
!  A total of 12 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.88     FD        1.05     GC        0.99     HH        1.00*    
!   HN        1.03     KK        1.00*    KP        1.00*    LA        1.09     
!   MA        1.22     MK        1.00*    NL        1.06     NY        1.10     
!   OV        1.00*    PT        0.93     SC        0.91     TS        1.00*    
!   WF        1.03     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        1.02     FD        0.98     GC        1.02     HH        1.00*    
!   HN        1.00     KK        0.85     KP        0.98     LA        1.00     
!   MA        1.00*    MK        1.02     NL        1.01     NY        1.02     
!   OV        1.00     PT        1.00     SC        1.03     TS        0.98     
!   WF        1.01     WZ        1.09     GG        1.00*    
! 
!  A total of 3 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.95     FD        1.02     GC        1.03     HH        1.00*    
!   HN        1.20     KK        1.00*    KP        1.00*    LA        0.91     
!   MA        1.05     MK        1.00*    NL        0.97     NY        1.11     
!   OV        1.00*    PT        1.02     SC        1.04     TS        1.00*    
!   WF        1.06     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        1.01     FD        0.98     GC        1.06     HH        1.00*    
!   HN        1.02     KK        0.97     KP        0.98     LA        1.01     
!   MA        1.00*    MK        1.00     NL        1.01     NY        1.00     
!   OV        0.99     PT        1.01     SC        1.05     TS        0.98     
!   WF        1.05     WZ        1.11     GG        1.00*    
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.91     FD        0.92     GC        1.06     HH        1.00*    
!   HN        1.12     KK        1.00*    KP        1.00*    LA        0.78     
!   MA        1.25     MK        1.00*    NL        0.97     NY        1.10     
!   OV        1.00*    PT        0.98     SC        0.98     TS        1.00*    
!   WF        1.09     WZ        1.00*    GG        1.00*    
! 
! 
! Fit before self-cal, rms=0.128247Jy  sigma=1.621138
! Fit after  self-cal, rms=0.114091Jy  sigma=1.314725
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=2.514 mas, bmaj=2.944 mas, bpa=-12.83 degrees
! Estimated noise=0.441258 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 = 0.00798914 Jy
! Component: 100  -  total flux cleaned = 0.0112848 Jy
! Total flux subtracted in 100 components = 0.0112848 Jy
! Clean residual min=-0.003363 max=0.004706 Jy/beam
! Clean residual mean=0.000221 rms=0.000855 Jy/beam
! Combined flux in latest and established models = 0.927407 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 40 components and 0.927407 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.113542Jy  sigma=1.305217
! Fit after  self-cal, rms=0.113507Jy  sigma=1.303672
! 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 (-8, -2.4).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00254464 Jy
! Component: 100  -  total flux cleaned = 0.00309191 Jy
! Total flux subtracted in 100 components = 0.00309191 Jy
! Clean residual min=-0.003164 max=0.004106 Jy/beam
! Clean residual mean=0.000205 rms=0.000810 Jy/beam
! Combined flux in latest and established models = 0.930499 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 14 model components to the UV plane model.
! The established model now contains 49 components and 0.930499 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.113283Jy  sigma=1.300109
! Fit after  self-cal, rms=0.112477Jy  sigma=1.237760
! Inverting map and beam 
! Estimated beam: bmin=2.512 mas, bmaj=2.946 mas, bpa=-13.17 degrees
! Estimated noise=0.441535 mJy/beam.
! Added new window around map position (-4.4, 10.4).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00412027 Jy
! Component: 100  -  total flux cleaned = 0.00551857 Jy
! Total flux subtracted in 100 components = 0.00551857 Jy
! Clean residual min=-0.002766 max=0.003507 Jy/beam
! Clean residual mean=0.000168 rms=0.000662 Jy/beam
! Combined flux in latest and established models = 0.936018 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 16 model components to the UV plane model.
! The established model now contains 60 components and 0.936018 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.112261Jy  sigma=1.235696
! Fit after  self-cal, rms=0.112574Jy  sigma=1.228841
! Inverting map and beam 
! Estimated beam: bmin=2.511 mas, bmaj=2.947 mas, bpa=-13.26 degrees
! Estimated noise=0.441686 mJy/beam.
! Added new window around map position (26.4, 8).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00340657 Jy
! Component: 100  -  total flux cleaned = 0.00488391 Jy
! Total flux subtracted in 100 components = 0.00488391 Jy
! Clean residual min=-0.002742 max=0.002719 Jy/beam
! Clean residual mean=0.000149 rms=0.000625 Jy/beam
! Combined flux in latest and established models = 0.940902 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 68 components and 0.940902 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.112415Jy  sigma=1.227106
! Fit after  self-cal, rms=0.112599Jy  sigma=1.225022
! Inverting map and beam 
! Estimated beam: bmin=2.51 mas, bmaj=2.947 mas, bpa=-13.3 degrees
! Estimated noise=0.441873 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 = 0.00192378 Jy
! Component: 100  -  total flux cleaned = 0.00307737 Jy
! Total flux subtracted in 100 components = 0.00307737 Jy
! Clean residual min=-0.002736 max=0.002707 Jy/beam
! Clean residual mean=0.000134 rms=0.000610 Jy/beam
! Combined flux in latest and established models = 0.943979 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 70 components and 0.943979 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.112499Jy  sigma=1.224142
! Fit after  self-cal, rms=0.112463Jy  sigma=1.223514
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1656+477_S
! Writing UV FITS file: 1656+477_S.uvf
! Writing 70 model components to file: 1656+477_S.mod
! wwins: Wrote 5 windows to 1656+477_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.51 x 2.947 at -13.3 degrees (North through East)
! Clean map  min=-0.0025176  max=0.76372 Jy/beam
! Writing clean map to FITS file: 1656+477_S.fits
! Writing difmap environment to: 1656+477_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1656+477_S]
device 1656+477_Suv.ps/vps,1,2
! Attempting to open device: '1656+477_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1656+477_Sim.ps/vps
! Attempting to open device: '1656+477_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=2.51 mas, bmaj=2.947 mas, bpa=-13.3 degrees
! Estimated noise=0.441873 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.51 x 2.947 at -13.3 degrees (North through East)
! Clean map  min=-0.0025176  max=0.76372 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file 1656+477_S.log closed on Fri Aug 22 11:05:20 2008