! Started logfile: 1657-261_X.log on Thu Aug  3 18:11:02 2006
observe 1657-261_X.edt
! Reading UV FITS file: 1657-261_X.edt
! AN table 1: 105 integrations on 190 of 190 possible baselines.
! AN table 2: 120 integrations on 190 of 190 possible baselines.
! AN table 3: 97 integrations on 190 of 190 possible baselines.
! Apparent sampling: 0.059235 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1657-261
! 
! 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 14496 visibilities.
![@gonzo8-0.1 1657-261_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 1779 telescope corrections were flagged in sub-array 1.
!  A total of 1714 telescope corrections were flagged in sub-array 2.
!  A total of 1880 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 1863 telescope corrections were flagged in sub-array 1.
!  A total of 1714 telescope corrections were flagged in sub-array 2.
!  A total of 1885 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 1791 telescope corrections were flagged in sub-array 1.
!  A total of 1841 telescope corrections were flagged in sub-array 2.
!  A total of 1876 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 1800 telescope corrections were flagged in sub-array 1.
!  A total of 1716 telescope corrections were flagged in sub-array 2.
!  A total of 1899 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=0.253621Jy  sigma=0.003147
! Fit after  self-cal, rms=0.247815Jy  sigma=0.003106
! 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=1.202 mas, bmaj=1.45 mas, bpa=12.3 degrees
! Estimated noise=1747.53 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 = 0.596375 Jy
! Total flux subtracted in 50 components = 0.596375 Jy
! Clean residual min=-0.043656 max=0.166568 Jy/beam
! Clean residual mean=0.001230 rms=0.017793 Jy/beam
! Combined flux in latest and established models = 0.596375 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 0.596375 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.214824Jy  sigma=0.002908
! Fit after  self-cal, rms=0.214817Jy  sigma=0.002908
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.138403 Jy
! Total flux subtracted in 50 components = 0.138403 Jy
! Clean residual min=-0.019704 max=0.043044 Jy/beam
! Clean residual mean=0.000523 rms=0.006937 Jy/beam
! Combined flux in latest and established models = 0.734777 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 8 components and 0.734777 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.121543Jy  sigma=0.001548
! Fit after  self-cal, rms=0.121543Jy  sigma=0.001548
! 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=1.675 mas, bmaj=3.258 mas, bpa=10.39 degrees
! Estimated noise=563.004 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 = 0.0426782 Jy
! Component: 100  -  total flux cleaned = 0.0546237 Jy
! Total flux subtracted in 100 components = 0.0546237 Jy
! Clean residual min=-0.011801 max=0.017096 Jy/beam
! Clean residual mean=0.000121 rms=0.004008 Jy/beam
! Combined flux in latest and established models = 0.789401 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 27 components and 0.789401 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.110719Jy  sigma=0.001339
! Fit after  self-cal, rms=0.110714Jy  sigma=0.001339
! 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 129 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        0.93     GC        1.00*    HN        1.01     
!   LA        1.25     NL        0.99     OV        1.00     SC        0.98     
!   WF        0.90     GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.00     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        1.00*    
! 
!  A total of 21 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.97     FD        1.00     GC        1.00*    HN        1.00*    
!   LA        0.96     NL        0.97     OV        0.99     SC        1.00*    
!   WF        1.00*    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        1.01     
! 
!  A total of 36 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.00*    FD        1.00*    GC        1.00*    HN        1.00*    
!   LA        1.00*    NL        1.00*    OV        1.00*    SC        1.00*    
!   WF        1.00*    GG        1.00*    HH        0.86     KK        1.00*    
!   KP        1.00*    MA        0.82     MC        1.24     MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.18     PT        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 51 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        1.02     
!   LA        1.21     NL        0.99     OV        0.99     SC        1.22     
!   WF        0.91     GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        0.97     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        1.00*    
! 
!  A total of 21 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.97     FD        1.02     GC        1.00*    HN        1.00*    
!   LA        0.96     NL        1.03     OV        1.00     SC        1.00*    
!   WF        1.00*    GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.05     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        1.04     
! 
!  A total of 39 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.00*    FD        1.00*    GC        1.00*    HN        1.00*    
!   LA        1.00*    NL        1.00*    OV        1.00*    SC        1.00*    
!   WF        1.00*    GG        1.00*    HH        0.82     KK        1.00*    
!   KP        1.00*    MA        0.84     MC        1.21     MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.16     PT        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 117 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        0.99     
!   LA        1.22     NL        1.01     OV        1.02     SC        0.96     
!   WF        0.93     GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        0.98     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.96     FD        1.02     GC        1.00*    HN        1.00*    
!   LA        1.00*    NL        0.98     OV        0.96     SC        1.00*    
!   WF        1.00*    GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.01     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        1.04     
! 
!  A total of 36 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.00*    FD        1.00*    GC        1.00*    HN        1.00*    
!   LA        1.00*    NL        1.00*    OV        1.00*    SC        1.00*    
!   WF        1.00*    GG        1.00*    HH        0.89     KK        1.00*    
!   KP        1.00*    MA        0.87     MC        1.38     MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.10     PT        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 108 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        0.92     GC        1.00*    HN        1.00     
!   LA        1.21     NL        1.03     OV        1.01     SC        0.99     
!   WF        0.90     GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.00     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        1.00*    
! 
!  A total of 21 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.96     FD        1.03     GC        1.00*    HN        1.00*    
!   LA        0.96     NL        0.95     OV        0.99     SC        1.00*    
!   WF        1.00*    GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.03     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        1.05     
! 
!  A total of 21 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.00*    FD        1.00*    GC        1.00*    HN        1.00*    
!   LA        1.00*    NL        1.00*    OV        1.00*    SC        1.00*    
!   WF        1.00*    GG        1.00*    HH        0.90     KK        1.00*    
!   KP        1.00*    MA        1.05     MC        1.48     MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.05     PT        1.00*    
! 
! 
! Fit before self-cal, rms=0.110714Jy  sigma=0.001339
! Fit after  self-cal, rms=0.097397Jy  sigma=0.001182
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=1.673 mas, bmaj=3.906 mas, bpa=7.64 degrees
! Estimated noise=572.981 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 = 0.00193526 Jy
! Component: 100  -  total flux cleaned = 0.00218177 Jy
! Total flux subtracted in 100 components = 0.00218177 Jy
! Clean residual min=-0.003047 max=0.004105 Jy/beam
! Clean residual mean=-0.000071 rms=0.000922 Jy/beam
! Combined flux in latest and established models = 0.791583 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 37 components and 0.791583 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.097355Jy  sigma=0.001181
! Fit after  self-cal, rms=0.097379Jy  sigma=0.001181
! 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 = 0.000173353 Jy
! Component: 100  -  total flux cleaned = 0.000355388 Jy
! Total flux subtracted in 100 components = 0.000355388 Jy
! Clean residual min=-0.003031 max=0.004039 Jy/beam
! Clean residual mean=-0.000072 rms=0.000902 Jy/beam
! Combined flux in latest and established models = 0.791938 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 8 model components to the UV plane model.
! The established model now contains 39 components and 0.791938 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.097361Jy  sigma=0.001181
! Fit after  self-cal, rms=0.095210Jy  sigma=0.001146
! Inverting map and beam 
! Estimated beam: bmin=1.672 mas, bmaj=3.905 mas, bpa=7.625 degrees
! Estimated noise=573.604 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 = 0.00169009 Jy
! Component: 100  -  total flux cleaned = 0.00193223 Jy
! Total flux subtracted in 100 components = 0.00193223 Jy
! Clean residual min=-0.002359 max=0.002709 Jy/beam
! Clean residual mean=-0.000038 rms=0.000699 Jy/beam
! Combined flux in latest and established models = 0.79387 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 42 components and 0.793871 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.095187Jy  sigma=0.001146
! Fit after  self-cal, rms=0.095192Jy  sigma=0.001146
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1657-261_X
! Writing UV FITS file: 1657-261_X.uvf
! Writing 42 model components to file: 1657-261_X.mod
! wwins: Wrote 1 windows to 1657-261_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 1.672 x 3.905 at 7.625 degrees (North through East)
! Clean map  min=-0.0023932  max=0.7803 Jy/beam
! Writing clean map to FITS file: 1657-261_X.fits
! Writing difmap environment to: 1657-261_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1657-261_X]
device 1657-261_Xuv.ps/vps,1,2
! Attempting to open device: '1657-261_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1657-261_Xim.ps/vps
! Attempting to open device: '1657-261_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=1.672 mas, bmaj=3.905 mas, bpa=7.625 degrees
! Estimated noise=573.604 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 1.672 x 3.905 at 7.625 degrees (North through East)
! Clean map  min=-0.0023932  max=0.7803 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo8-0.1]
quit
! Quitting program
! Log file 1657-261_X.log closed on Thu Aug  3 18:11:41 2006