! Started logfile: 1451-400_X.log on Thu Aug  3 11:57:10 2006
observe 1451-400_X.edt
! Reading UV FITS file: 1451-400_X.edt
! AN table 1: 18 integrations on 190 of 190 possible baselines.
! Apparent sampling: 0.0862573 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1451-400
! 
! 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  8.40997e+09        8e+06          1        8e+06
!  02        2  8.47997e+09        8e+06          1        8e+06
!  03        3  8.79497e+09        8e+06          1        8e+06
!  04        4  8.89997e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 1409 lines of history.
! 
! Reading 1180 visibilities.
![@gonzo8-0.1 1451-400_X]
print "***********************************"
! *********************************** 
print "*** Using gonzo instruction set ***"
! *** Using gonzo instruction set *** 
print "***********************************"
! *********************************** 
float field_size
field_size = 1024
float field_cell
field_cell = 0.1
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 0.100x0.100 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 284 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 297 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 278 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 288 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.584796Jy  sigma=0.006161
! Fit after  self-cal, rms=0.576563Jy  sigma=0.006175
! 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=0.8603 mas, bmaj=4.791 mas, bpa=2.34 degrees
! Estimated noise=5531.31 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=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.329601 Jy
! Total flux subtracted in 50 components = 0.329601 Jy
! Clean residual min=-0.055783 max=0.092239 Jy/beam
! Clean residual mean=0.001758 rms=0.020578 Jy/beam
! Combined flux in latest and established models = 0.329601 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 0.329601 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.162054Jy  sigma=0.001882
! Fit after  self-cal, rms=0.162055Jy  sigma=0.001882
! 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=1.353 mas, bmaj=6.232 mas, bpa=-0.07852 degrees
! Estimated noise=2968.07 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 = 0.0947695 Jy
! Component: 100  -  total flux cleaned = 0.109469 Jy
! Total flux subtracted in 100 components = 0.109469 Jy
! Clean residual min=-0.024290 max=0.024327 Jy/beam
! Clean residual mean=0.001097 rms=0.012969 Jy/beam
! Combined flux in latest and established models = 0.43907 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 59 model components to the UV plane model.
! The established model now contains 59 components and 0.43907 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.106924Jy  sigma=0.001177
! Fit after  self-cal, rms=0.106809Jy  sigma=0.001176
! 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        1.00*    FD        0.91     GC        1.00*    HN        1.00*    
!   LA        0.90     NL        1.07     OV        1.06     SC        1.01     
!   WF        1.13     GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.02     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        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        1.00*    FD        0.88     GC        1.00*    HN        1.00*    
!   LA        0.89     NL        1.12     OV        1.06     SC        1.01     
!   WF        1.32     GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.08     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        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        1.00*    FD        0.87     GC        1.00*    HN        1.00*    
!   LA        0.87     NL        1.13     OV        1.08     SC        0.97     
!   WF        1.15     GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.11     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        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        1.00*    FD        0.84     GC        1.00*    HN        1.00*    
!   LA        0.93     NL        1.06     OV        1.06     SC        0.99     
!   WF        1.05     GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.04     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        1.00*    
! 
! 
! Fit before self-cal, rms=0.106809Jy  sigma=0.001176
! Fit after  self-cal, rms=0.097088Jy  sigma=0.001001
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=1.365 mas, bmaj=6.381 mas, bpa=0.8253 degrees
! Estimated noise=2896.33 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 = 0.0141651 Jy
! Component: 100  -  total flux cleaned = 0.0138516 Jy
! Total flux subtracted in 100 components = 0.0138516 Jy
! Clean residual min=-0.006664 max=0.006654 Jy/beam
! Clean residual mean=0.000209 rms=0.002182 Jy/beam
! Combined flux in latest and established models = 0.452922 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 23 model components to the UV plane model.
! The established model now contains 82 components and 0.452922 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.092938Jy  sigma=0.000963
! Fit after  self-cal, rms=0.092980Jy  sigma=0.000962
! 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 = -0.000450618 Jy
! Component: 100  -  total flux cleaned = -0.00104324 Jy
! Total flux subtracted in 100 components = -0.00104324 Jy
! Clean residual min=-0.004676 max=0.004650 Jy/beam
! Clean residual mean=0.000101 rms=0.001586 Jy/beam
! Combined flux in latest and established models = 0.451878 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 29 model components to the UV plane model.
! The established model now contains 104 components and 0.451878 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.091601Jy  sigma=0.000953
! Fit after  self-cal, rms=0.088597Jy  sigma=0.000932
! Inverting map and beam 
! Estimated beam: bmin=1.362 mas, bmaj=6.359 mas, bpa=0.8149 degrees
! Estimated noise=2879.24 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 = -0.000260595 Jy
! Component: 100  -  total flux cleaned = -0.00138502 Jy
! Total flux subtracted in 100 components = -0.00138502 Jy
! Clean residual min=-0.003491 max=0.003494 Jy/beam
! Clean residual mean=0.000050 rms=0.001210 Jy/beam
! Combined flux in latest and established models = 0.450493 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 28 model components to the UV plane model.
! The established model now contains 129 components and 0.450493 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.087824Jy  sigma=0.000926
! Fit after  self-cal, rms=0.087809Jy  sigma=0.000926
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1451-400_X
! Writing UV FITS file: 1451-400_X.uvf
! Writing 129 model components to file: 1451-400_X.mod
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 1.362 x 6.359 at 0.8149 degrees (North through East)
! Clean map  min=-0.010259  max=0.39306 Jy/beam
! Writing clean map to FITS file: 1451-400_X.fits
! Writing difmap environment to: 1451-400_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1451-400_X]
device 1451-400_Xuv.ps/vps,1,2
! Attempting to open device: '1451-400_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1451-400_Xim.ps/vps
! Attempting to open device: '1451-400_Xim.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=1.362 mas, bmaj=6.359 mas, bpa=0.8149 degrees
! Estimated noise=2879.24 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 1.362 x 6.359 at 0.8149 degrees (North through East)
! Clean map  min=-0.010259  max=0.39306 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo8-0.1]
quit
! Quitting program
! Log file 1451-400_X.log closed on Thu Aug  3 11:57:21 2006