! Started logfile: 2255-282_S.log on Thu Feb  7 19:18:49 2008
observe 2255-282_S.edt
! Reading UV FITS file: 2255-282_S.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: 0.100735 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  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 1267 lines of history.
! 
! Reading 3288 visibilities.
![@gonzo6-0.4 2255-282_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 = 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 0.400x0.400 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 83 telescope corrections were flagged in sub-array 1.
!  A total of 357 telescope corrections were flagged in sub-array 2.
!  A total of 402 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 83 telescope corrections were flagged in sub-array 1.
!  A total of 357 telescope corrections were flagged in sub-array 2.
!  A total of 400 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 83 telescope corrections were flagged in sub-array 1.
!  A total of 357 telescope corrections were flagged in sub-array 2.
!  A total of 398 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 94 telescope corrections were flagged in sub-array 1.
!  A total of 357 telescope corrections were flagged in sub-array 2.
!  A total of 393 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=0.381818Jy  sigma=0.004935
! Fit after  self-cal, rms=0.378939Jy  sigma=0.004899
! 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=2.783 mas, bmaj=8.842 mas, bpa=-4.668 degrees
! Estimated noise=1933.28 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 = 0.957671 Jy
! Total flux subtracted in 50 components = 0.957671 Jy
! Clean residual min=-0.061214 max=0.267087 Jy/beam
! Clean residual mean=-0.001092 rms=0.023496 Jy/beam
! Combined flux in latest and established models = 0.957671 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 0.957671 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.411324Jy  sigma=0.005310
! Fit after  self-cal, rms=0.411324Jy  sigma=0.005310
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.242327 Jy
! Total flux subtracted in 50 components = 0.242327 Jy
! Clean residual min=-0.035041 max=0.111873 Jy/beam
! Clean residual mean=-0.000663 rms=0.013212 Jy/beam
! Combined flux in latest and established models = 1.2 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 10 components and 1.2 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.246841Jy  sigma=0.003169
! Fit after  self-cal, rms=0.246475Jy  sigma=0.003164
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.128956 Jy
! Total flux subtracted in 50 components = 0.128956 Jy
! Clean residual min=-0.022856 max=0.068744 Jy/beam
! Clean residual mean=-0.000430 rms=0.008307 Jy/beam
! Combined flux in latest and established models = 1.32895 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 15 components and 1.32895 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.170197Jy  sigma=0.002137
! Fit after  self-cal, rms=0.169800Jy  sigma=0.002133
! Inverting map 
! Added new window around map position (-3.2, -2).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0773313 Jy
! Total flux subtracted in 50 components = 0.0773313 Jy
! Clean residual min=-0.017655 max=0.038689 Jy/beam
! Clean residual mean=-0.000288 rms=0.005552 Jy/beam
! Combined flux in latest and established models = 1.40629 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 17 model components to the UV plane model.
! The established model now contains 29 components and 1.40629 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.130705Jy  sigma=0.001593
! Fit after  self-cal, rms=0.129928Jy  sigma=0.001586
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.047701 Jy
! Total flux subtracted in 50 components = 0.047701 Jy
! Clean residual min=-0.015128 max=0.024186 Jy/beam
! Clean residual mean=-0.000201 rms=0.003984 Jy/beam
! Combined flux in latest and established models = 1.45399 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 46 components and 1.45399 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.110800Jy  sigma=0.001313
! Fit after  self-cal, rms=0.110395Jy  sigma=0.001310
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0303308 Jy
! Total flux subtracted in 50 components = 0.0303308 Jy
! Clean residual min=-0.013405 max=0.015743 Jy/beam
! Clean residual mean=-0.000145 rms=0.003141 Jy/beam
! Combined flux in latest and established models = 1.48432 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 22 model components to the UV plane model.
! The established model now contains 63 components and 1.48432 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.101391Jy  sigma=0.001177
! Fit after  self-cal, rms=0.101174Jy  sigma=0.001175
! 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=3.385 mas, bmaj=10.92 mas, bpa=-11.48 degrees
! Estimated noise=1336.59 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 = 0.0302358 Jy
! Component: 100  -  total flux cleaned = 0.0456218 Jy
! Total flux subtracted in 100 components = 0.0456218 Jy
! Clean residual min=-0.007728 max=0.014076 Jy/beam
! Clean residual mean=-0.000154 rms=0.002253 Jy/beam
! Combined flux in latest and established models = 1.52994 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 33 model components to the UV plane model.
! The established model now contains 86 components and 1.52994 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.093604Jy  sigma=0.001061
! Fit after  self-cal, rms=0.093217Jy  sigma=0.001057
! Inverting map 
! Added new window around map position (-20.4, -8.8).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0130166 Jy
! Component: 100  -  total flux cleaned = 0.0193464 Jy
! Total flux subtracted in 100 components = 0.0193464 Jy
! Clean residual min=-0.007347 max=0.008591 Jy/beam
! Clean residual mean=-0.000088 rms=0.001787 Jy/beam
! Combined flux in latest and established models = 1.54928 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 24 model components to the UV plane model.
! The established model now contains 102 components and 1.54928 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.091545Jy  sigma=0.001034
! Fit after  self-cal, rms=0.091437Jy  sigma=0.001033
! 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        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 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        0.99     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        0.99     
!   WZ        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00     FD        0.99     GC        1.00*    HN        1.00*    
!   KK        0.99     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*    
! 
! 
! Fit before self-cal, rms=0.091437Jy  sigma=0.001033
! Fit after  self-cal, rms=0.090975Jy  sigma=0.001031
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.388 mas, bmaj=10.93 mas, bpa=-11.49 degrees
! Estimated noise=1333.12 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 = 0.00250886 Jy
! Component: 100  -  total flux cleaned = 0.00413031 Jy
! Total flux subtracted in 100 components = 0.00413031 Jy
! Clean residual min=-0.007311 max=0.007504 Jy/beam
! Clean residual mean=-0.000048 rms=0.001634 Jy/beam
! Combined flux in latest and established models = 1.55342 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 115 components and 1.55341 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.090565Jy  sigma=0.001025
! Fit after  self-cal, rms=0.090541Jy  sigma=0.001025
! 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 (-12, -5.2).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00609739 Jy
! Component: 100  -  total flux cleaned = 0.0067707 Jy
! Total flux subtracted in 100 components = 0.0067707 Jy
! Clean residual min=-0.006838 max=0.006039 Jy/beam
! Clean residual mean=-0.000025 rms=0.001502 Jy/beam
! Combined flux in latest and established models = 1.56019 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 22 model components to the UV plane model.
! The established model now contains 137 components and 1.56019 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.090084Jy  sigma=0.001019
! Fit after  self-cal, rms=0.089592Jy  sigma=0.001014
! Inverting map and beam 
! Estimated beam: bmin=3.387 mas, bmaj=10.93 mas, bpa=-11.49 degrees
! Estimated noise=1333 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 = 0.0035186 Jy
! Component: 100  -  total flux cleaned = 0.00426003 Jy
! Total flux subtracted in 100 components = 0.00426003 Jy
! Clean residual min=-0.006785 max=0.005875 Jy/beam
! Clean residual mean=-0.000029 rms=0.001443 Jy/beam
! Combined flux in latest and established models = 1.56445 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 24 model components to the UV plane model.
! The established model now contains 154 components and 1.56445 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.089402Jy  sigma=0.001011
! Fit after  self-cal, rms=0.089363Jy  sigma=0.001011
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 2255-282_S
! Writing UV FITS file: 2255-282_S.uvf
! Writing 154 model components to file: 2255-282_S.mod
! wwins: Wrote 4 windows to 2255-282_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.387 x 10.93 at -11.49 degrees (North through East)
! Clean map  min=-0.0072565  max=1.2439 Jy/beam
! Writing clean map to FITS file: 2255-282_S.fits
! Writing difmap environment to: 2255-282_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 2255-282_S]
device 2255-282_Suv.ps/vps,1,2
! Attempting to open device: '2255-282_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 2255-282_Sim.ps/vps
! Attempting to open device: '2255-282_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=3.387 mas, bmaj=10.93 mas, bpa=-11.49 degrees
! Estimated noise=1333 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.387 x 10.93 at -11.49 degrees (North through East)
! Clean map  min=-0.0072565  max=1.2439 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo6-0.4]
quit
! Quitting program
! Log file 2255-282_S.log closed on Thu Feb  7 19:18:56 2008