! Started logfile: 1856+736_S.log on Fri Jul 20 18:41:20 2007
observe 1856+736_S.edt
! Reading UV FITS file: 1856+736_S.edt
! AN table 1: 77 integrations on 171 of 171 possible baselines.
! AN table 2: 10 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.299254 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1856+736
! Warning: Unknown AN-table MNTSTA value (3).
!          Will assume that it is ground-based.
! Warning: Unknown AN-table MNTSTA value (3).
!          Will assume that it is ground-based.
! 
! 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 1332 lines of history.
! 
! Reading 17808 visibilities.
![@gonzo6-0.4 1856+736_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 = 6.0
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 866 telescope corrections were flagged in sub-array 1.
!  A total of 164 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 2.
!  A total of 843 telescope corrections were flagged in sub-array 1.
!  A total of 163 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 3.
!  A total of 874 telescope corrections were flagged in sub-array 1.
!  A total of 159 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 4.
!  A total of 909 telescope corrections were flagged in sub-array 1.
!  A total of 181 telescope corrections were flagged in sub-array 2.
! 
! Fit before self-cal, rms=0.728485Jy  sigma=0.008150
! Fit after  self-cal, rms=0.726952Jy  sigma=0.008162
! 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=1.873 mas, bmaj=2.32 mas, bpa=42.41 degrees
! Estimated noise=1470.45 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 = 0.20206 Jy
! Total flux subtracted in 50 components = 0.20206 Jy
! Clean residual min=-0.014210 max=0.056363 Jy/beam
! Clean residual mean=-0.000001 rms=0.003594 Jy/beam
! Combined flux in latest and established models = 0.20206 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 0.20206 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.129819Jy  sigma=0.001537
! Fit after  self-cal, rms=0.129820Jy  sigma=0.001537
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0504791 Jy
! Total flux subtracted in 50 components = 0.0504791 Jy
! Clean residual min=-0.009062 max=0.021893 Jy/beam
! Clean residual mean=-0.000003 rms=0.002573 Jy/beam
! Combined flux in latest and established models = 0.252539 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 6 components and 0.252539 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.106733Jy  sigma=0.001232
! Fit after  self-cal, rms=0.106697Jy  sigma=0.001231
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0248101 Jy
! Total flux subtracted in 50 components = 0.0248101 Jy
! Clean residual min=-0.008019 max=0.021424 Jy/beam
! Clean residual mean=-0.000004 rms=0.002282 Jy/beam
! Combined flux in latest and established models = 0.277349 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 18 components and 0.277349 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.099622Jy  sigma=0.001131
! Fit after  self-cal, rms=0.099590Jy  sigma=0.001131
! Inverting map 
! Added new window around map position (2.8, 3.6).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0212059 Jy
! Total flux subtracted in 50 components = 0.0212059 Jy
! Clean residual min=-0.007417 max=0.012345 Jy/beam
! Clean residual mean=-0.000005 rms=0.002042 Jy/beam
! Combined flux in latest and established models = 0.298555 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 28 components and 0.298555 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.094084Jy  sigma=0.001054
! Fit after  self-cal, rms=0.093962Jy  sigma=0.001052
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0155451 Jy
! Total flux subtracted in 50 components = 0.0155451 Jy
! Clean residual min=-0.007060 max=0.011040 Jy/beam
! Clean residual mean=-0.000005 rms=0.001897 Jy/beam
! Combined flux in latest and established models = 0.3141 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 32 components and 0.3141 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.090778Jy  sigma=0.001007
! Fit after  self-cal, rms=0.090734Jy  sigma=0.001007
! 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=2.253 mas, bmaj=2.898 mas, bpa=35.32 degrees
! Estimated noise=747.949 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 = 0.0246886 Jy
! Component: 100  -  total flux cleaned = 0.0401808 Jy
! Total flux subtracted in 100 components = 0.0401808 Jy
! Clean residual min=-0.006151 max=0.009691 Jy/beam
! Clean residual mean=0.000097 rms=0.002089 Jy/beam
! Combined flux in latest and established models = 0.354281 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 35 model components to the UV plane model.
! The established model now contains 58 components and 0.354281 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.085137Jy  sigma=0.000922
! Fit after  self-cal, rms=0.084927Jy  sigma=0.000919
! 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        0.95     FD        1.06     GC        0.95     GG        1.00*    
!   HN        1.00     KP        0.88     LA        0.96     MA        1.11     
!   MK        1.00*    NL        0.97     NY        1.07     ON        0.98     
!   OV        1.00     PT        0.95     SC        0.99     TC        1.00*    
!   TS        0.99     WF        1.09     WZ        0.95     
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.00*    FD        1.08     GC        1.00*    GG        1.00*    
!   HN        1.01     KP        0.75     LA        0.94     MA        1.00*    
!   MK        1.00*    NL        0.90     NY        1.00*    ON        1.00*    
!   OV        1.11     PT        0.86     SC        1.00*    TC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 15 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.06     FD        1.00     GC        0.92     GG        1.00*    
!   HN        1.02     KP        0.92     LA        0.93     MA        1.12     
!   MK        1.00*    NL        1.03     NY        1.10     ON        1.06     
!   OV        1.01     PT        0.94     SC        1.03     TC        1.00*    
!   TS        0.99     WF        1.00*    WZ        0.92     
! 
!  A total of 3 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.00*    FD        0.86     GC        1.00*    GG        1.00*    
!   HN        1.04     KP        0.86     LA        0.93     MA        1.00*    
!   MK        1.00*    NL        0.95     NY        1.00*    ON        1.00*    
!   OV        1.10     PT        0.90     SC        1.00*    TC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 3.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.18     FD        0.97     GC        1.03     GG        1.00*    
!   HN        1.00     KP        0.93     LA        0.83     MA        1.09     
!   MK        1.00*    NL        1.03     NY        1.11     ON        1.03     
!   OV        1.02     PT        0.98     SC        1.13     TC        1.00*    
!   TS        1.00     WF        1.00*    WZ        0.98     
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.00*    FD        0.89     GC        1.00*    GG        1.00*    
!   HN        1.01     KP        0.88     LA        0.77     MA        1.00*    
!   MK        1.00*    NL        1.08     NY        1.00*    ON        1.00*    
!   OV        1.07     PT        0.92     SC        1.00*    TC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 6 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.93     FD        0.90     GC        1.06     GG        1.00*    
!   HN        0.98     KP        0.94     LA        0.79     MA        1.14     
!   MK        1.00*    NL        0.97     NY        1.05     ON        1.05     
!   OV        0.96     PT        0.94     SC        1.10     TC        1.00*    
!   TS        1.04     WF        1.00*    WZ        1.01     
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.00*    FD        0.83     GC        1.00*    GG        1.00*    
!   HN        1.19     KP        0.83     LA        1.00*    MA        1.00*    
!   MK        1.00*    NL        1.04     NY        1.00*    ON        1.00*    
!   OV        1.00*    PT        0.88     SC        1.00*    TC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.084927Jy  sigma=0.000919
! Fit after  self-cal, rms=0.080497Jy  sigma=0.000860
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=2.271 mas, bmaj=2.932 mas, bpa=35.72 degrees
! Estimated noise=730.184 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 (6.4, 2.4).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0071954 Jy
! Component: 100  -  total flux cleaned = 0.010924 Jy
! Total flux subtracted in 100 components = 0.010924 Jy
! Clean residual min=-0.004785 max=0.004869 Jy/beam
! Clean residual mean=0.000001 rms=0.001018 Jy/beam
! Combined flux in latest and established models = 0.365205 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 77 components and 0.365204 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.079995Jy  sigma=0.000852
! Fit after  self-cal, rms=0.079989Jy  sigma=0.000851
! 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 = 0.00172877 Jy
! Component: 100  -  total flux cleaned = 0.0029891 Jy
! Total flux subtracted in 100 components = 0.0029891 Jy
! Clean residual min=-0.004681 max=0.004365 Jy/beam
! Clean residual mean=-0.000004 rms=0.000968 Jy/beam
! Combined flux in latest and established models = 0.368194 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 17 model components to the UV plane model.
! The established model now contains 86 components and 0.368194 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.079861Jy  sigma=0.000849
! Fit after  self-cal, rms=0.077237Jy  sigma=0.000821
! Inverting map and beam 
! Estimated beam: bmin=2.265 mas, bmaj=2.93 mas, bpa=35.29 degrees
! Estimated noise=728.458 mJy/beam.
! Added new window around map position (23.6, -11.2).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00396322 Jy
! Component: 100  -  total flux cleaned = 0.00561566 Jy
! Total flux subtracted in 100 components = 0.00561566 Jy
! Clean residual min=-0.003861 max=0.003702 Jy/beam
! Clean residual mean=-0.000000 rms=0.000837 Jy/beam
! Combined flux in latest and established models = 0.373809 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 23 model components to the UV plane model.
! The established model now contains 108 components and 0.373809 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.077058Jy  sigma=0.000818
! Fit after  self-cal, rms=0.076994Jy  sigma=0.000816
! Inverting map and beam 
! Estimated beam: bmin=2.265 mas, bmaj=2.93 mas, bpa=35.14 degrees
! Estimated noise=727.635 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 = 0.00179739 Jy
! Component: 100  -  total flux cleaned = 0.00233362 Jy
! Total flux subtracted in 100 components = 0.00233362 Jy
! Clean residual min=-0.003653 max=0.003609 Jy/beam
! Clean residual mean=-0.000001 rms=0.000807 Jy/beam
! Combined flux in latest and established models = 0.376143 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 25 model components to the UV plane model.
! The established model now contains 120 components and 0.376143 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.076930Jy  sigma=0.000815
! Fit after  self-cal, rms=0.076918Jy  sigma=0.000815
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1856+736_S
! Writing UV FITS file: 1856+736_S.uvf
! Writing 120 model components to file: 1856+736_S.mod
! wwins: Wrote 4 windows to 1856+736_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.265 x 2.93 at 35.14 degrees (North through East)
! Clean map  min=-0.0034716  max=0.27171 Jy/beam
! Writing clean map to FITS file: 1856+736_S.fits
! Writing difmap environment to: 1856+736_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1856+736_S]
device 1856+736_Suv.ps/vps,1,2
! Attempting to open device: '1856+736_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1856+736_Sim.ps/vps
! Attempting to open device: '1856+736_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=2.265 mas, bmaj=2.93 mas, bpa=35.14 degrees
! Estimated noise=727.635 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.265 x 2.93 at 35.14 degrees (North through East)
! Clean map  min=-0.0034716  max=0.27171 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo6-0.4]
quit
! Quitting program
! Log file 1856+736_S.log closed on Fri Jul 20 18:41:32 2007