! Started logfile: 0657+172_S.log on Tue Apr 29 21:52:37 2008
observe 0657+172_S.edt
! Reading UV FITS file: 0657+172_S.edt
! AN table 1: 55 integrations on 153 of 153 possible baselines.
! Apparent sampling: 0.134403 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  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 955 lines of history.
! 
! Reading 4524 visibilities.
![@gonzo7-0.4 0657+172_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 829 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 840 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 826 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 911 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.419141Jy  sigma=0.004923
! Fit after  self-cal, rms=0.416190Jy  sigma=0.004921
! 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=2.71 mas, bmaj=3.853 mas, bpa=6.683 degrees
! Estimated noise=2371.8 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 = 0.449685 Jy
! Total flux subtracted in 50 components = 0.449685 Jy
! Clean residual min=-0.024039 max=0.125411 Jy/beam
! Clean residual mean=0.000037 rms=0.007530 Jy/beam
! Combined flux in latest and established models = 0.449685 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 0.449685 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.202277Jy  sigma=0.002455
! Fit after  self-cal, rms=0.202277Jy  sigma=0.002455
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.104937 Jy
! Total flux subtracted in 50 components = 0.104937 Jy
! Clean residual min=-0.015236 max=0.039719 Jy/beam
! Clean residual mean=0.000013 rms=0.004557 Jy/beam
! Combined flux in latest and established models = 0.554622 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 8 components and 0.554622 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.138712Jy  sigma=0.001633
! Fit after  self-cal, rms=0.138699Jy  sigma=0.001633
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0437336 Jy
! Total flux subtracted in 50 components = 0.0437336 Jy
! Clean residual min=-0.013702 max=0.028403 Jy/beam
! Clean residual mean=0.000004 rms=0.003891 Jy/beam
! Combined flux in latest and established models = 0.598355 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 0.598355 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.123509Jy  sigma=0.001427
! Fit after  self-cal, rms=0.123410Jy  sigma=0.001426
! Inverting map 
! Added new window around map position (-2.8, -5.2).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0298943 Jy
! Total flux subtracted in 50 components = 0.0298943 Jy
! Clean residual min=-0.012943 max=0.019474 Jy/beam
! Clean residual mean=0.000001 rms=0.003544 Jy/beam
! Combined flux in latest and established models = 0.62825 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 15 model components to the UV plane model.
! The established model now contains 29 components and 0.62825 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.116048Jy  sigma=0.001323
! Fit after  self-cal, rms=0.115772Jy  sigma=0.001321
! 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=3.152 mas, bmaj=4.855 mas, bpa=13.85 degrees
! Estimated noise=1520.61 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 = 0.0328544 Jy
! Component: 100  -  total flux cleaned = 0.0529051 Jy
! Total flux subtracted in 100 components = 0.0529051 Jy
! Clean residual min=-0.011446 max=0.015654 Jy/beam
! Clean residual mean=-0.000019 rms=0.003316 Jy/beam
! Combined flux in latest and established models = 0.681155 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 32 model components to the UV plane model.
! The established model now contains 50 components and 0.681155 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.107362Jy  sigma=0.001198
! Fit after  self-cal, rms=0.107168Jy  sigma=0.001196
! 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 6 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.98     FD        1.16     GC        0.98     HH        1.00*    
!   HN        0.98     KK        1.01     KP        0.96     LA        1.01     
!   MC        1.00*    MK        1.08     NL        0.93     NY        1.04     
!   ON        1.06     OV        0.96     PT        1.01     SC        0.91     
!   WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.99     FD        1.00     GC        0.98     HH        1.00*    
!   HN        0.97     KK        1.03     KP        1.05     LA        1.00     
!   MC        0.89     MK        1.03     NL        0.98     NY        1.03     
!   ON        0.96     OV        0.94     PT        0.94     SC        1.01     
!   WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 9 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.99     FD        1.05     GC        0.97     HH        1.00*    
!   HN        1.09     KK        1.04     KP        0.98     LA        0.95     
!   MC        1.54     MK        1.03     NL        1.00     NY        1.03     
!   ON        1.09     OV        0.95     PT        0.94     SC        1.10     
!   WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00     FD        0.97     GC        0.97     HH        1.00*    
!   HN        1.08     KK        1.07     KP        1.03     LA        1.00*    
!   MC        0.84     MK        1.03     NL        0.99     NY        1.11     
!   ON        1.11     OV        0.83     PT        1.00     SC        1.00*    
!   WF        1.00*    WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.107168Jy  sigma=0.001196
! Fit after  self-cal, rms=0.098172Jy  sigma=0.001044
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.172 mas, bmaj=4.92 mas, bpa=13.65 degrees
! Estimated noise=1514.03 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 (-3.6, -11.2).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0147768 Jy
! Component: 100  -  total flux cleaned = 0.0222031 Jy
! Total flux subtracted in 100 components = 0.0222031 Jy
! Clean residual min=-0.007082 max=0.006815 Jy/beam
! Clean residual mean=-0.000005 rms=0.001758 Jy/beam
! Combined flux in latest and established models = 0.703358 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 67 components and 0.703358 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.096533Jy  sigma=0.001010
! Fit after  self-cal, rms=0.096398Jy  sigma=0.001008
! 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 = 0.00558141 Jy
! Component: 100  -  total flux cleaned = 0.00653453 Jy
! Total flux subtracted in 100 components = 0.00653453 Jy
! Clean residual min=-0.006935 max=0.006325 Jy/beam
! Clean residual mean=-0.000003 rms=0.001644 Jy/beam
! Combined flux in latest and established models = 0.709893 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 77 components and 0.709892 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.096107Jy  sigma=0.001003
! Fit after  self-cal, rms=0.092715Jy  sigma=0.000965
! Inverting map and beam 
! Estimated beam: bmin=3.18 mas, bmaj=4.898 mas, bpa=13.43 degrees
! Estimated noise=1517.09 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 = 0.00430574 Jy
! Component: 100  -  total flux cleaned = 0.00525122 Jy
! Total flux subtracted in 100 components = 0.00525122 Jy
! Clean residual min=-0.006026 max=0.006175 Jy/beam
! Clean residual mean=0.000008 rms=0.001375 Jy/beam
! Combined flux in latest and established models = 0.715144 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 89 components and 0.715144 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.092563Jy  sigma=0.000961
! Fit after  self-cal, rms=0.092535Jy  sigma=0.000961
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 0657+172_S
! Writing UV FITS file: 0657+172_S.uvf
! Writing 89 model components to file: 0657+172_S.mod
! wwins: Wrote 3 windows to 0657+172_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.18 x 4.898 at 13.43 degrees (North through East)
! Clean map  min=-0.0057779  max=0.58793 Jy/beam
! Writing clean map to FITS file: 0657+172_S.fits
! Writing difmap environment to: 0657+172_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 0657+172_S]
device 0657+172_Suv.ps/vps,1,2
! Attempting to open device: '0657+172_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 0657+172_Sim.ps/vps
! Attempting to open device: '0657+172_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=3.18 mas, bmaj=4.898 mas, bpa=13.43 degrees
! Estimated noise=1517.09 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.18 x 4.898 at 13.43 degrees (North through East)
! Clean map  min=-0.0057779  max=0.58793 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file 0657+172_S.log closed on Tue Apr 29 21:52:42 2008