! Started logfile: 1657-261_S.log on Sun Jul 16 18:19:05 2006
observe 1657-261_S.edt
! Reading UV FITS file: 1657-261_S.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  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 1588 lines of history.
! 
! Reading 14496 visibilities.
![@gonzo7-0.4 1657-261_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 1784 telescope corrections were flagged in sub-array 1.
!  A total of 1719 telescope corrections were flagged in sub-array 2.
!  A total of 1919 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 1781 telescope corrections were flagged in sub-array 1.
!  A total of 1718 telescope corrections were flagged in sub-array 2.
!  A total of 1890 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 1790 telescope corrections were flagged in sub-array 1.
!  A total of 1696 telescope corrections were flagged in sub-array 2.
!  A total of 1916 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 1790 telescope corrections were flagged in sub-array 1.
!  A total of 1719 telescope corrections were flagged in sub-array 2.
!  A total of 1892 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=0.535564Jy  sigma=0.007204
! Fit after  self-cal, rms=0.529715Jy  sigma=0.007192
! 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=4.211 mas, bmaj=7.044 mas, bpa=1.305 degrees
! Estimated noise=1263.66 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 = 0.35242 Jy
! Total flux subtracted in 50 components = 0.35242 Jy
! Clean residual min=-0.024486 max=0.098485 Jy/beam
! Clean residual mean=0.000661 rms=0.010592 Jy/beam
! Combined flux in latest and established models = 0.35242 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 3 model components to the UV plane model.
! The established model now contains 3 components and 0.35242 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.183212Jy  sigma=0.002550
! Fit after  self-cal, rms=0.183211Jy  sigma=0.002550
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0821964 Jy
! Total flux subtracted in 50 components = 0.0821964 Jy
! Clean residual min=-0.014187 max=0.030240 Jy/beam
! Clean residual mean=0.000393 rms=0.005462 Jy/beam
! Combined flux in latest and established models = 0.434616 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 18 model components to the UV plane model.
! The established model now contains 21 components and 0.434616 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.135832Jy  sigma=0.001879
! Fit after  self-cal, rms=0.135815Jy  sigma=0.001878
! 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=6.25 mas, bmaj=13.33 mas, bpa=9.315 degrees
! Estimated noise=533.123 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 = 0.0502248 Jy
! Component: 100  -  total flux cleaned = 0.0689759 Jy
! Total flux subtracted in 100 components = 0.0689759 Jy
! Clean residual min=-0.010935 max=0.013422 Jy/beam
! Clean residual mean=0.000233 rms=0.004346 Jy/beam
! Combined flux in latest and established models = 0.503592 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 44 model components to the UV plane model.
! The established model now contains 63 components and 0.503592 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.120395Jy  sigma=0.001644
! Fit after  self-cal, rms=0.120399Jy  sigma=0.001644
! 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 123 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.01     GC        1.00*    HN        1.01     
!   LA        1.06     NL        1.03     OV        1.05     SC        1.08     
!   WF        0.96     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*    
! 
!  A total of 12 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.03     FD        1.00     GC        1.00*    HN        1.00*    
!   LA        0.98     NL        0.99     OV        1.00     SC        1.00*    
!   WF        1.00*    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        1.04     
! 
!  A total of 21 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.00*    FD        0.00*    GC        0.00*    HN        0.00*    
!   LA        0.00*    NL        0.00*    OV        0.00*    SC        0.00*    
!   WF        0.00*    GG        0.00*    HH        0.00*    KK        0.00*    
!   KP        0.00*    MA        0.00*    MC        0.00*    MK        0.00*    
!   NY        0.00*    TS        0.00*    WZ        0.00*    PT        0.00*    
! 
! 
! Correcting IF 2.
!  A total of 126 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.04     GC        1.00*    HN        0.98     
!   LA        1.12     NL        1.02     OV        1.05     SC        1.08     
!   WF        1.00     GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.07     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        1.00*    
! 
!  A total of 12 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.04     FD        1.00     GC        1.00*    HN        1.00*    
!   LA        1.03     NL        0.97     OV        1.02     SC        1.00*    
!   WF        1.00*    GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        1.07     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        0.99     
! 
!  A total of 42 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        1.24     KK        1.00*    
!   KP        1.00*    MA        1.31     MC        1.21     MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.19     PT        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 120 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.01     GC        1.00*    HN        0.96     
!   LA        1.12     NL        1.00     OV        1.04     SC        1.03     
!   WF        0.78     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 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.06     FD        0.95     GC        1.00*    HN        1.00*    
!   LA        0.89     NL        0.99     OV        0.98     SC        1.00*    
!   WF        1.00*    GG        1.00*    HH        1.00*    KK        1.00*    
!   KP        0.96     MA        1.00*    MC        1.00*    MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        1.00*    PT        0.99     
! 
!  A total of 24 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.00*    FD        0.00*    GC        0.00*    HN        0.00*    
!   LA        0.00*    NL        0.00*    OV        0.00*    SC        0.00*    
!   WF        0.00*    GG        0.00*    HH        0.00*    KK        0.00*    
!   KP        0.00*    MA        0.00*    MC        0.00*    MK        0.00*    
!   NY        0.00*    TS        0.00*    WZ        0.00*    PT        0.00*    
! 
! 
! Correcting IF 4.
!  A total of 117 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.03     GC        1.00*    HN        0.96     
!   LA        1.15     NL        1.00     OV        1.02     SC        1.03     
!   WF        0.82     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 12 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.03     FD        0.96     GC        1.00*    HN        1.00*    
!   LA        0.86     NL        0.99     OV        0.79     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        0.97     
! 
!  A total of 24 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        1.01     KK        1.00*    
!   KP        1.00*    MA        1.14     MC        1.48     MK        1.00*    
!   NY        1.00*    TS        1.00*    WZ        0.99     PT        1.00*    
! 
! 
! Fit before self-cal, rms=0.120399Jy  sigma=0.001644
! Fit after  self-cal, rms=0.107043Jy  sigma=0.001494
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=6.374 mas, bmaj=16.38 mas, bpa=6.895 degrees
! Estimated noise=540.353 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 = 0.000656593 Jy
! Component: 100  -  total flux cleaned = 0.000926882 Jy
! Total flux subtracted in 100 components = 0.000926882 Jy
! Clean residual min=-0.003927 max=0.004170 Jy/beam
! Clean residual mean=-0.000027 rms=0.001169 Jy/beam
! Combined flux in latest and established models = 0.504519 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 5 model components to the UV plane model.
! The established model now contains 67 components and 0.504519 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.106987Jy  sigma=0.001493
! Fit after  self-cal, rms=0.107020Jy  sigma=0.001493
! 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 = 0.000256199 Jy
! Component: 100  -  total flux cleaned = 0.000259289 Jy
! Total flux subtracted in 100 components = 0.000259289 Jy
! Clean residual min=-0.003844 max=0.004044 Jy/beam
! Clean residual mean=-0.000028 rms=0.001148 Jy/beam
! Combined flux in latest and established models = 0.504778 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 5 model components to the UV plane model.
! The established model now contains 68 components and 0.504778 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.107003Jy  sigma=0.001493
! Fit after  self-cal, rms=0.104706Jy  sigma=0.001445
! Inverting map and beam 
! Estimated beam: bmin=6.371 mas, bmaj=16.41 mas, bpa=6.963 degrees
! Estimated noise=540.4 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 = 0.000695262 Jy
! Component: 100  -  total flux cleaned = 0.000737586 Jy
! Total flux subtracted in 100 components = 0.000737586 Jy
! Clean residual min=-0.003384 max=0.003621 Jy/beam
! Clean residual mean=-0.000004 rms=0.000999 Jy/beam
! Combined flux in latest and established models = 0.505516 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 71 components and 0.505516 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.104688Jy  sigma=0.001445
! Fit after  self-cal, rms=0.104702Jy  sigma=0.001445
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1657-261_S
! Writing UV FITS file: 1657-261_S.uvf
! Writing 71 model components to file: 1657-261_S.mod
! wwins: Wrote 1 windows to 1657-261_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 6.371 x 16.41 at 6.963 degrees (North through East)
! Clean map  min=-0.0033292  max=0.47878 Jy/beam
! Writing clean map to FITS file: 1657-261_S.fits
! Writing difmap environment to: 1657-261_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1657-261_S]
device 1657-261_Suv.ps/vps,1,2
! Attempting to open device: '1657-261_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1657-261_Sim.ps/vps
! Attempting to open device: '1657-261_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=6.371 mas, bmaj=16.41 mas, bpa=6.963 degrees
! Estimated noise=540.4 mJy/beam.
xyrange 0, 0, 0, 0
! The mapplot display area will be limited to:
!  Relative  RA: (The whole available range)
!  Relative DEC: (The whole available range)
mapcolor grey
! Mapplot colormap: grey, contrast: 1 brightness: 0.5.
docont=true
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 6.371 x 16.41 at 6.963 degrees (North through East)
! Clean map  min=-0.0033292  max=0.47878 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file 1657-261_S.log closed on Sun Jul 16 18:19:46 2006