! Started logfile: 1218+339_S.log on Fri Aug 10 14:40:42 2007
observe 1218+339_S.edt
! Reading UV FITS file: 1218+339_S.edt
! AN table 1: 45 integrations on 105 of 105 possible baselines.
! AN table 2: 124 integrations on 105 of 105 possible baselines.
! Apparent sampling: 0.198084 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1218+339
! 
! 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  2.23697e+09        8e+06          1        8e+06
!  02        2  2.26697e+09        8e+06          1        8e+06
!  03        3  2.35697e+09        8e+06          1        8e+06
!  04        4  2.37697e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 1153 lines of history.
! 
! Reading 14060 visibilities.
![@gonzo8-0.4 1218+339_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 = 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 0.400x0.400 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 398 telescope corrections were flagged in sub-array 1.
!  A total of 1001 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 2.
!  A total of 381 telescope corrections were flagged in sub-array 1.
!  A total of 1031 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 3.
!  A total of 398 telescope corrections were flagged in sub-array 1.
!  A total of 1042 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 4.
!  A total of 398 telescope corrections were flagged in sub-array 1.
!  A total of 1072 telescope corrections were flagged in sub-array 2.
! 
! Fit before self-cal, rms=0.884599Jy  sigma=0.012115
! Fit after  self-cal, rms=0.884363Jy  sigma=0.012114
! 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=2.334 mas, bmaj=5.679 mas, bpa=13.69 degrees
! Estimated noise=1680.42 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 = 0.0861428 Jy
! Total flux subtracted in 50 components = 0.0861428 Jy
! Clean residual min=-0.009908 max=0.024060 Jy/beam
! Clean residual mean=0.000029 rms=0.003103 Jy/beam
! Combined flux in latest and established models = 0.0861428 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 2 model components to the UV plane model.
! The established model now contains 2 components and 0.0861428 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.110043Jy  sigma=0.001190
! Fit after  self-cal, rms=0.110043Jy  sigma=0.001190
! 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=4.835 mas, bmaj=8.196 mas, bpa=19.2 degrees
! Estimated noise=483.134 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 = 0.0258552 Jy
! Component: 100  -  total flux cleaned = 0.0376898 Jy
! Total flux subtracted in 100 components = 0.0376898 Jy
! Clean residual min=-0.009649 max=0.014016 Jy/beam
! Clean residual mean=0.000273 rms=0.002575 Jy/beam
! Combined flux in latest and established models = 0.123833 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 17 components and 0.123833 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.103257Jy  sigma=0.001115
! Fit after  self-cal, rms=0.103228Jy  sigma=0.001114
! 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        1.08     FD        0.88     HH        1.00*    HN        1.00     
!   KB        1.00*    KK        1.00*    KP        0.83     LA        0.81     
!   MK        1.00*    NL        0.94     NY        1.00*    OV        1.00*    
!   PT        0.78     SC        1.01     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.23     FD        0.94     HH        1.00*    HN        1.00*    
!   KB        1.04     KK        1.00*    KP        0.67     LA        1.03     
!   MK        0.79     NL        1.31     NY        1.00*    OV        0.94     
!   PT        0.96     SC        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 2.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00     FD        0.81     HH        1.00*    HN        0.93     
!   KB        1.00*    KK        1.00*    KP        0.86     LA        0.91     
!   MK        1.00*    NL        0.75     NY        1.00*    OV        1.00*    
!   PT        0.85     SC        0.89     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.18     FD        0.95     HH        1.00*    HN        1.00*    
!   KB        1.07     KK        1.00*    KP        0.82     LA        1.05     
!   MK        0.45     NL        1.22     NY        1.00*    OV        0.97     
!   PT        0.96     SC        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 3.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.94     FD        0.92     HH        1.00*    HN        0.95     
!   KB        1.00*    KK        1.00*    KP        0.89     LA        0.91     
!   MK        1.00*    NL        0.83     NY        1.00*    OV        1.00*    
!   PT        0.90     SC        0.96     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.20     FD        0.96     HH        1.00*    HN        1.00*    
!   KB        1.00*    KK        1.00*    KP        0.74     LA        1.05     
!   MK        2.32     NL        1.22     NY        1.00*    OV        0.94     
!   PT        0.96     SC        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.95     FD        0.87     HH        1.00*    HN        0.90     
!   KB        1.00*    KK        1.00*    KP        0.91     LA        0.96     
!   MK        1.00*    NL        0.79     NY        1.00*    OV        1.00*    
!   PT        0.97     SC        0.80     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.23     FD        0.93     HH        1.00*    HN        1.00*    
!   KB        1.00*    KK        1.00*    KP        0.74     LA        1.05     
!   MK        1.05     NL        1.21     NY        1.00*    OV        0.94     
!   PT        1.00     SC        1.00*    WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.103228Jy  sigma=0.001114
! Fit after  self-cal, rms=0.087562Jy  sigma=0.001076
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=5.003 mas, bmaj=8.121 mas, bpa=20.81 degrees
! Estimated noise=467.845 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 = -0.000256565 Jy
! Component: 100  -  total flux cleaned = -0.000284475 Jy
! Total flux subtracted in 100 components = -0.000284475 Jy
! Clean residual min=-0.003384 max=0.007290 Jy/beam
! Clean residual mean=0.000120 rms=0.001216 Jy/beam
! Combined flux in latest and established models = 0.123548 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 20 components and 0.123548 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.087549Jy  sigma=0.001076
! Fit after  self-cal, rms=0.087554Jy  sigma=0.001076
! 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 (-38.4, -2.8).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00548866 Jy
! Component: 100  -  total flux cleaned = 0.00513779 Jy
! Total flux subtracted in 100 components = 0.00513779 Jy
! Clean residual min=-0.002707 max=0.004397 Jy/beam
! Clean residual mean=0.000096 rms=0.000921 Jy/beam
! Combined flux in latest and established models = 0.128686 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 13 model components to the UV plane model.
! The established model now contains 33 components and 0.128686 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.087217Jy  sigma=0.001071
! Fit after  self-cal, rms=0.088481Jy  sigma=0.001052
! Inverting map and beam 
! Estimated beam: bmin=4.987 mas, bmaj=8.124 mas, bpa=20.81 degrees
! Estimated noise=468.148 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 = 0.000606465 Jy
! Component: 100  -  total flux cleaned = 0.000326552 Jy
! Total flux subtracted in 100 components = 0.000326552 Jy
! Clean residual min=-0.002965 max=0.003930 Jy/beam
! Clean residual mean=0.000080 rms=0.000844 Jy/beam
! Combined flux in latest and established models = 0.129013 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 20 model components to the UV plane model.
! The established model now contains 47 components and 0.129012 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.088409Jy  sigma=0.001052
! Fit after  self-cal, rms=0.088415Jy  sigma=0.001051
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1218+339_S
! Writing UV FITS file: 1218+339_S.uvf
! Writing 47 model components to file: 1218+339_S.mod
! wwins: Wrote 2 windows to 1218+339_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 4.987 x 8.124 at 20.81 degrees (North through East)
! Clean map  min=-0.0029755  max=0.108 Jy/beam
! Writing clean map to FITS file: 1218+339_S.fits
! Writing difmap environment to: 1218+339_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1218+339_S]
device 1218+339_Suv.ps/vps,1,2
! Attempting to open device: '1218+339_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1218+339_Sim.ps/vps
! Attempting to open device: '1218+339_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=4.987 mas, bmaj=8.124 mas, bpa=20.81 degrees
! Estimated noise=468.148 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 4.987 x 8.124 at 20.81 degrees (North through East)
! Clean map  min=-0.0029755  max=0.108 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo8-0.4]
quit
! Quitting program
! Log file 1218+339_S.log closed on Fri Aug 10 14:41:03 2007