! Started logfile: 2255-282_X.log on Tue Apr  1 22:59:42 2008
observe 2255-282_X.edt
! Reading UV FITS file: 2255-282_X.edt
! AN table 1: 7 integrations on 136 of 136 possible baselines.
! AN table 2: 21 integrations on 136 of 136 possible baselines.
! AN table 3: 32 integrations on 136 of 136 possible baselines.
! Apparent sampling: 0.101471 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 2255-282
! 
! 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 1222 lines of history.
! 
! Reading 3312 visibilities.
![@gonzo6-0.1 2255-282_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 = 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 0.100x0.100 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 82 telescope corrections were flagged in sub-array 1.
!  A total of 357 telescope corrections were flagged in sub-array 2.
!  A total of 388 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 82 telescope corrections were flagged in sub-array 1.
!  A total of 357 telescope corrections were flagged in sub-array 2.
!  A total of 387 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 82 telescope corrections were flagged in sub-array 1.
!  A total of 357 telescope corrections were flagged in sub-array 2.
!  A total of 363 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 82 telescope corrections were flagged in sub-array 1.
!  A total of 357 telescope corrections were flagged in sub-array 2.
!  A total of 363 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=3.408069Jy  sigma=0.052672
! Fit after  self-cal, rms=3.408334Jy  sigma=0.052680
! 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=0.7202 mas, bmaj=2.197 mas, bpa=-7.752 degrees
! Estimated noise=1553.38 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 = 3.40158 Jy
! Total flux subtracted in 50 components = 3.40158 Jy
! Clean residual min=-0.182692 max=0.948687 Jy/beam
! Clean residual mean=-0.003223 rms=0.061616 Jy/beam
! Combined flux in latest and established models = 3.40158 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 3.40158 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=1.026182Jy  sigma=0.016175
! Fit after  self-cal, rms=1.026181Jy  sigma=0.016175
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.742006 Jy
! Total flux subtracted in 50 components = 0.742006 Jy
! Clean residual min=-0.049578 max=0.211683 Jy/beam
! Clean residual mean=-0.001267 rms=0.018553 Jy/beam
! Combined flux in latest and established models = 4.14358 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 4 model components to the UV plane model.
! The established model now contains 4 components and 4.14358 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.348938Jy  sigma=0.005597
! Fit after  self-cal, rms=0.348930Jy  sigma=0.005596
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.211168 Jy
! Total flux subtracted in 50 components = 0.211168 Jy
! Clean residual min=-0.035003 max=0.095233 Jy/beam
! Clean residual mean=-0.000710 rms=0.010173 Jy/beam
! Combined flux in latest and established models = 4.35475 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 12 model components to the UV plane model.
! The established model now contains 16 components and 4.35475 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.206831Jy  sigma=0.003238
! Fit after  self-cal, rms=0.206854Jy  sigma=0.003238
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.107819 Jy
! Total flux subtracted in 50 components = 0.107819 Jy
! Clean residual min=-0.024924 max=0.052375 Jy/beam
! Clean residual mean=-0.000424 rms=0.006615 Jy/beam
! Combined flux in latest and established models = 4.46257 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 18 components and 4.46257 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.149514Jy  sigma=0.002231
! Fit after  self-cal, rms=0.149529Jy  sigma=0.002231
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0599207 Jy
! Total flux subtracted in 50 components = 0.0599207 Jy
! Clean residual min=-0.019644 max=0.032844 Jy/beam
! Clean residual mean=-0.000266 rms=0.005020 Jy/beam
! Combined flux in latest and established models = 4.52249 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 7 model components to the UV plane model.
! The established model now contains 22 components and 4.52249 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.127188Jy  sigma=0.001810
! Fit after  self-cal, rms=0.127232Jy  sigma=0.001810
! Inverting map 
! Added new window around map position (-3.2, -2.9).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0382789 Jy
! Total flux subtracted in 50 components = 0.0382789 Jy
! Clean residual min=-0.017081 max=0.020874 Jy/beam
! Clean residual mean=-0.000189 rms=0.004174 Jy/beam
! Combined flux in latest and established models = 4.56077 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 12 model components to the UV plane model.
! The established model now contains 32 components and 4.56077 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.117041Jy  sigma=0.001608
! Fit after  self-cal, rms=0.116510Jy  sigma=0.001605
! 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=0.8617 mas, bmaj=2.742 mas, bpa=-13.7 degrees
! Estimated noise=930.259 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 = 0.0353325 Jy
! Component: 100  -  total flux cleaned = 0.0559654 Jy
! Total flux subtracted in 100 components = 0.0559654 Jy
! Clean residual min=-0.012126 max=0.014548 Jy/beam
! Clean residual mean=-0.000149 rms=0.003061 Jy/beam
! Combined flux in latest and established models = 4.61674 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 34 model components to the UV plane model.
! The established model now contains 60 components and 4.61674 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.107151Jy  sigma=0.001413
! Fit after  self-cal, rms=0.106200Jy  sigma=0.001402
! Inverting map 
! Added new window around map position (-1.7, -2.2).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0169814 Jy
! Component: 100  -  total flux cleaned = 0.0265571 Jy
! Total flux subtracted in 100 components = 0.0265571 Jy
! Clean residual min=-0.011381 max=0.009320 Jy/beam
! Clean residual mean=-0.000020 rms=0.002398 Jy/beam
! Combined flux in latest and established models = 4.64329 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 29 model components to the UV plane model.
! The established model now contains 83 components and 4.64329 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.103873Jy  sigma=0.001355
! Fit after  self-cal, rms=0.103308Jy  sigma=0.001349
! Inverting map 
print "****************************************"
! **************************************** 
print "*** Finished Natural Weighting CLEAN ***"
! *** Finished Natural Weighting CLEAN *** 
print "****************************************"
! **************************************** 
gscale true
! Performing overall amplitude self-cal
! 
! Correcting IF 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.99     FD        1.01     GC        1.00*    HN        1.00*    
!   KK        1.00     KP        1.00     LA        1.00     MC        1.00*    
!   MK        1.00     NL        1.00*    NY        1.00*    ON        1.00*    
!   OV        1.00     PT        1.00*    SC        1.00*    WF        1.00*    
!   WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.00*    FD        0.00*    GC        0.00*    HN        0.00*    
!   KK        0.00*    KP        0.00*    LA        0.00*    MC        0.00*    
!   MK        0.00*    NL        0.00*    NY        0.00*    ON        0.00*    
!   OV        0.00*    PT        0.00*    SC        0.00*    WF        0.00*    
!   WZ        0.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.00     FD        1.00     GC        1.00*    HN        1.00     
!   KK        1.00*    KP        1.00     LA        1.00     MC        1.00*    
!   MK        1.00     NL        1.00     NY        1.00*    ON        1.00*    
!   OV        1.00     PT        1.00     SC        1.00     WF        1.00     
!   WZ        1.00*    
! 
! 
! Correcting IF 2.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00     FD        1.00     GC        1.00*    HN        1.00*    
!   KK        1.00     KP        1.00     LA        1.00     MC        1.00*    
!   MK        1.00     NL        1.00*    NY        1.00*    ON        1.00*    
!   OV        1.00     PT        1.00*    SC        1.00*    WF        1.00*    
!   WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.00*    FD        0.00*    GC        0.00*    HN        0.00*    
!   KK        0.00*    KP        0.00*    LA        0.00*    MC        0.00*    
!   MK        0.00*    NL        0.00*    NY        0.00*    ON        0.00*    
!   OV        0.00*    PT        0.00*    SC        0.00*    WF        0.00*    
!   WZ        0.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.00     FD        1.00     GC        1.00*    HN        1.00     
!   KK        1.00*    KP        1.00     LA        1.00     MC        1.00*    
!   MK        1.00     NL        1.00     NY        1.00*    ON        1.00*    
!   OV        1.00     PT        1.00     SC        1.00     WF        1.00     
!   WZ        1.00*    
! 
! 
! Correcting IF 3.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00     FD        1.00     GC        1.00*    HN        1.00*    
!   KK        1.01     KP        1.00     LA        1.00     MC        1.00*    
!   MK        1.00     NL        1.00*    NY        1.00*    ON        1.00*    
!   OV        1.00     PT        1.00*    SC        1.00*    WF        1.00*    
!   WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.00*    FD        0.00*    GC        0.00*    HN        0.00*    
!   KK        0.00*    KP        0.00*    LA        0.00*    MC        0.00*    
!   MK        0.00*    NL        0.00*    NY        0.00*    ON        0.00*    
!   OV        0.00*    PT        0.00*    SC        0.00*    WF        0.00*    
!   WZ        0.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.00     FD        1.00     GC        1.00*    HN        1.00     
!   KK        1.00     KP        1.00     LA        1.00     MC        1.00*    
!   MK        1.00     NL        1.00     NY        1.00*    ON        1.00*    
!   OV        1.00     PT        1.00     SC        1.00     WF        1.00     
!   WZ        1.00*    
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.99     FD        1.00     GC        1.00*    HN        1.00*    
!   KK        1.01     KP        1.00     LA        1.00     MC        1.00*    
!   MK        1.00     NL        1.00*    NY        1.00*    ON        1.00*    
!   OV        1.00     PT        1.00*    SC        1.00*    WF        1.00*    
!   WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.00*    FD        0.00*    GC        0.00*    HN        0.00*    
!   KK        0.00*    KP        0.00*    LA        0.00*    MC        0.00*    
!   MK        0.00*    NL        0.00*    NY        0.00*    ON        0.00*    
!   OV        0.00*    PT        0.00*    SC        0.00*    WF        0.00*    
!   WZ        0.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.00     FD        1.00     GC        1.00*    HN        1.00     
!   KK        1.01     KP        1.00     LA        1.00     MC        1.00*    
!   MK        1.00     NL        1.00     NY        1.00*    ON        1.00*    
!   OV        1.00     PT        1.00     SC        1.00     WF        1.00     
!   WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.103308Jy  sigma=0.001349
! Fit after  self-cal, rms=0.101073Jy  sigma=0.001320
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=0.8628 mas, bmaj=2.745 mas, bpa=-13.71 degrees
! Estimated noise=930.046 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 (-3.4, -6.4).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00722162 Jy
! Component: 100  -  total flux cleaned = 0.00952212 Jy
! Total flux subtracted in 100 components = 0.00952212 Jy
! Clean residual min=-0.006941 max=0.006729 Jy/beam
! Clean residual mean=-0.000012 rms=0.001765 Jy/beam
! Combined flux in latest and established models = 4.65282 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 103 components and 4.65282 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.099905Jy  sigma=0.001299
! Fit after  self-cal, rms=0.099677Jy  sigma=0.001297
! 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 = 0.00240119 Jy
! Component: 100  -  total flux cleaned = 0.00364099 Jy
! Total flux subtracted in 100 components = 0.00364099 Jy
! Clean residual min=-0.006653 max=0.005545 Jy/beam
! Clean residual mean=-0.000003 rms=0.001649 Jy/beam
! Combined flux in latest and established models = 4.65646 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 27 model components to the UV plane model.
! The established model now contains 117 components and 4.65646 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.099176Jy  sigma=0.001289
! Fit after  self-cal, rms=0.096370Jy  sigma=0.001242
! Inverting map and beam 
! Estimated beam: bmin=0.8634 mas, bmaj=2.746 mas, bpa=-13.71 degrees
! Estimated noise=930.502 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 = 0.00410298 Jy
! Component: 100  -  total flux cleaned = 0.00547623 Jy
! Total flux subtracted in 100 components = 0.00547623 Jy
! Clean residual min=-0.005552 max=0.005085 Jy/beam
! Clean residual mean=-0.000010 rms=0.001515 Jy/beam
! Combined flux in latest and established models = 4.66193 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 134 components and 4.66193 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.095952Jy  sigma=0.001234
! Fit after  self-cal, rms=0.095846Jy  sigma=0.001233
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 2255-282_X
! Writing UV FITS file: 2255-282_X.uvf
! Writing 134 model components to file: 2255-282_X.mod
! wwins: Wrote 4 windows to 2255-282_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.8634 x 2.746 at -13.71 degrees (North through East)
! Clean map  min=-0.0055372  max=4.3959 Jy/beam
! Writing clean map to FITS file: 2255-282_X.fits
! Writing difmap environment to: 2255-282_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 2255-282_X]
device 2255-282_Xuv.ps/vps,1,2
! Attempting to open device: '2255-282_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 2255-282_Xim.ps/vps
! Attempting to open device: '2255-282_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=0.8634 mas, bmaj=2.746 mas, bpa=-13.71 degrees
! Estimated noise=930.502 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.8634 x 2.746 at -13.71 degrees (North through East)
! Clean map  min=-0.0055372  max=4.3959 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo6-0.1]
quit
! Quitting program
! Log file 2255-282_X.log closed on Tue Apr  1 22:59:48 2008