! Started logfile: 0537-441_S.log on Thu Aug 11 16:48:44 2005
observe 0537-441_S.edt
! Reading UV FITS file: 0537-441_S.edt
! AN table 1: 79 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.0752091 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 0537-441
! 
! 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 1565 lines of history.
! 
! Reading 4064 visibilities.
![@gonzo7-0.4 0537-441_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 1205 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 1205 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 1221 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 1240 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=1.678165Jy  sigma=0.019627
! Fit after  self-cal, rms=1.678117Jy  sigma=0.019582
! 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=2.239 mas, bmaj=7.079 mas, bpa=-3.502 degrees
! Estimated noise=2799.1 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 = 1.81828 Jy
! Total flux subtracted in 50 components = 1.81828 Jy
! Clean residual min=-0.142673 max=0.507099 Jy/beam
! Clean residual mean=-0.001190 rms=0.052740 Jy/beam
! Combined flux in latest and established models = 1.81828 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 1.81828 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.913532Jy  sigma=0.010667
! Fit after  self-cal, rms=0.913532Jy  sigma=0.010667
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.47861 Jy
! Total flux subtracted in 50 components = 0.47861 Jy
! Clean residual min=-0.081336 max=0.205397 Jy/beam
! Clean residual mean=-0.000749 rms=0.028203 Jy/beam
! Combined flux in latest and established models = 2.29689 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 16 model components to the UV plane model.
! The established model now contains 16 components and 2.29689 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.522315Jy  sigma=0.006100
! Fit after  self-cal, rms=0.522303Jy  sigma=0.006100
! Inverting map 
! Added new window around map position (-1.6, -7.2).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.231612 Jy
! Total flux subtracted in 50 components = 0.231612 Jy
! Clean residual min=-0.061715 max=0.122499 Jy/beam
! Clean residual mean=-0.000539 rms=0.018804 Jy/beam
! Combined flux in latest and established models = 2.52851 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 16 model components to the UV plane model.
! The established model now contains 28 components and 2.52851 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.357443Jy  sigma=0.004171
! Fit after  self-cal, rms=0.357400Jy  sigma=0.004170
! 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=3.025 mas, bmaj=9.759 mas, bpa=-1.698 degrees
! Estimated noise=1348.46 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 = 0.250568 Jy
! Component: 100  -  total flux cleaned = 0.359437 Jy
! Total flux subtracted in 100 components = 0.359437 Jy
! Clean residual min=-0.025811 max=0.050321 Jy/beam
! Clean residual mean=-0.001012 rms=0.010265 Jy/beam
! Combined flux in latest and established models = 2.88794 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 50 model components to the UV plane model.
! The established model now contains 71 components and 2.88794 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.155947Jy  sigma=0.001783
! Fit after  self-cal, rms=0.155785Jy  sigma=0.001781
! 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 12 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        0.99     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        1.00     LA        0.99     
!   MC        1.00*    MK        1.02     NL        1.00*    NY        1.00*    
!   ON        1.00*    OV        1.00     PT        0.99     SC        0.95     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 12 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        0.98     LA        0.98     
!   MC        1.00*    MK        1.01     NL        1.00*    NY        1.00*    
!   ON        1.00*    OV        1.00     PT        0.99     SC        1.03     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 24 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        0.98     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        0.99     LA        0.95     
!   MC        1.00*    MK        1.00     NL        1.00*    NY        1.00*    
!   ON        1.00*    OV        0.98     PT        0.98     SC        1.04     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 39 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        0.95     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        0.99     LA        0.97     
!   MC        1.00*    MK        1.24     NL        1.00*    NY        1.00*    
!   ON        1.00*    OV        1.00     PT        0.96     SC        1.05     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.155785Jy  sigma=0.001781
! Fit after  self-cal, rms=0.120197Jy  sigma=0.001349
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.057 mas, bmaj=9.97 mas, bpa=-1.975 degrees
! Estimated noise=1360.58 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 = -0.000748923 Jy
! Component: 100  -  total flux cleaned = -0.000612168 Jy
! Total flux subtracted in 100 components = -0.000612168 Jy
! Clean residual min=-0.013051 max=0.022408 Jy/beam
! Clean residual mean=-0.000302 rms=0.003965 Jy/beam
! Combined flux in latest and established models = 2.88733 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 77 components and 2.88733 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.120029Jy  sigma=0.001347
! Fit after  self-cal, rms=0.119999Jy  sigma=0.001347
! 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 (5.2, 32).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0196514 Jy
! Component: 100  -  total flux cleaned = 0.0240332 Jy
! Total flux subtracted in 100 components = 0.0240332 Jy
! Clean residual min=-0.011167 max=0.011999 Jy/beam
! Clean residual mean=-0.000243 rms=0.002779 Jy/beam
! Combined flux in latest and established models = 2.91136 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 91 components and 2.91136 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.117201Jy  sigma=0.001313
! Fit after  self-cal, rms=0.106511Jy  sigma=0.001191
! Inverting map and beam 
! Estimated beam: bmin=3.057 mas, bmaj=9.979 mas, bpa=-1.937 degrees
! Estimated noise=1361.75 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 (9.6, 1.2).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00748784 Jy
! Component: 100  -  total flux cleaned = 0.00738215 Jy
! Total flux subtracted in 100 components = 0.00738215 Jy
! Clean residual min=-0.005521 max=0.004965 Jy/beam
! Clean residual mean=-0.000085 rms=0.001329 Jy/beam
! Combined flux in latest and established models = 2.91874 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 99 components and 2.91874 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.106041Jy  sigma=0.001185
! Fit after  self-cal, rms=0.105988Jy  sigma=0.001185
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 0537-441_S
! Writing UV FITS file: 0537-441_S.uvf
! Writing 99 model components to file: 0537-441_S.mod
! wwins: Wrote 4 windows to 0537-441_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.057 x 9.979 at -1.937 degrees (North through East)
! Clean map  min=-0.0055218  max=2.497 Jy/beam
! Writing clean map to FITS file: 0537-441_S.fits
! Writing difmap environment to: 0537-441_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 0537-441_S]
device 0537-441_Suv.ps/vps,1,2
! Attempting to open device: '0537-441_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 0537-441_Sim.ps/vps
! Attempting to open device: '0537-441_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=3.057 mas, bmaj=9.979 mas, bpa=-1.937 degrees
! Estimated noise=1361.75 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.057 x 9.979 at -1.937 degrees (North through East)
! Clean map  min=-0.0055218  max=2.497 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file 0537-441_S.log closed on Thu Aug 11 16:49:05 2005