! Started logfile: 3C446_S.log on Mon Aug 25 16:24:19 2008
observe 3C446_S.edt
! Reading UV FITS file: 3C446_S.edt
! AN table 1: 55 integrations on 171 of 171 possible baselines.
! AN table 2: 8 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.119465 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 3C446
! 
! 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 1615 lines of history.
! 
! Reading 5148 visibilities.
![@gonzo5-0.4 3C446_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 = 5.0
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 822 telescope corrections were flagged in sub-array 1.
!  A total of 136 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 2.
!  A total of 822 telescope corrections were flagged in sub-array 1.
!  A total of 136 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 3.
!  A total of 822 telescope corrections were flagged in sub-array 1.
!  A total of 136 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 4.
!  A total of 822 telescope corrections were flagged in sub-array 1.
!  A total of 136 telescope corrections were flagged in sub-array 2.
! 
! Fit before self-cal, rms=0.511343Jy  sigma=9.404645
! Fit after  self-cal, rms=0.511454Jy  sigma=9.407176
! 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=2.448 mas, bmaj=6.66 mas, bpa=-4.409 degrees
! Estimated noise=0.982526 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 = 0.984353 Jy
! Total flux subtracted in 50 components = 0.984353 Jy
! Clean residual min=-0.067247 max=0.274541 Jy/beam
! Clean residual mean=0.000829 rms=0.023785 Jy/beam
! Combined flux in latest and established models = 0.984353 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 0.984353 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.521931Jy  sigma=9.622604
! Fit after  self-cal, rms=0.521931Jy  sigma=9.622595
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.258122 Jy
! Total flux subtracted in 50 components = 0.258122 Jy
! Clean residual min=-0.045799 max=0.163020 Jy/beam
! Clean residual mean=0.000645 rms=0.016015 Jy/beam
! Combined flux in latest and established models = 1.24248 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 1.24248 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.375327Jy  sigma=6.534465
! Fit after  self-cal, rms=0.373738Jy  sigma=6.520623
! Inverting map 
! Added new window around map position (3.2, -0.8).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.160111 Jy
! Total flux subtracted in 50 components = 0.160111 Jy
! Clean residual min=-0.034817 max=0.076625 Jy/beam
! Clean residual mean=0.000543 rms=0.011700 Jy/beam
! Combined flux in latest and established models = 1.40259 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 9 components and 1.40259 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.296168Jy  sigma=4.948872
! Fit after  self-cal, rms=0.292648Jy  sigma=4.892801
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0995249 Jy
! Total flux subtracted in 50 components = 0.0995249 Jy
! Clean residual min=-0.029799 max=0.052003 Jy/beam
! Clean residual mean=0.000485 rms=0.009405 Jy/beam
! Combined flux in latest and established models = 1.50211 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 9 model components to the UV plane model.
! The established model now contains 14 components and 1.50211 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.254193Jy  sigma=4.095229
! Fit after  self-cal, rms=0.252675Jy  sigma=4.064600
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0694878 Jy
! Total flux subtracted in 50 components = 0.0694878 Jy
! Clean residual min=-0.028054 max=0.037442 Jy/beam
! Clean residual mean=0.000445 rms=0.008115 Jy/beam
! Combined flux in latest and established models = 1.5716 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 20 components and 1.5716 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.230702Jy  sigma=3.609324
! Fit after  self-cal, rms=0.229942Jy  sigma=3.590957
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0494313 Jy
! Total flux subtracted in 50 components = 0.0494313 Jy
! Clean residual min=-0.026968 max=0.038177 Jy/beam
! Clean residual mean=0.000416 rms=0.007396 Jy/beam
! Combined flux in latest and established models = 1.62103 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 13 model components to the UV plane model.
! The established model now contains 26 components and 1.62103 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.217591Jy  sigma=3.338987
! Fit after  self-cal, rms=0.217264Jy  sigma=3.329215
! Inverting map 
! Added new window around map position (49.6, -19.2).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0440053 Jy
! Total flux subtracted in 50 components = 0.0440053 Jy
! Clean residual min=-0.025708 max=0.029982 Jy/beam
! Clean residual mean=0.000381 rms=0.006776 Jy/beam
! Combined flux in latest and established models = 1.66504 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 37 components and 1.66504 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.205692Jy  sigma=3.113098
! Fit after  self-cal, rms=0.205479Jy  sigma=3.108865
! 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=2.876 mas, bmaj=7.845 mas, bpa=-7.729 degrees
! Estimated noise=0.711391 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 (52.8, -17.6).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0627825 Jy
! Component: 100  -  total flux cleaned = 0.110601 Jy
! Total flux subtracted in 100 components = 0.110601 Jy
! Clean residual min=-0.026763 max=0.031399 Jy/beam
! Clean residual mean=0.001005 rms=0.008981 Jy/beam
! Combined flux in latest and established models = 1.77564 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 51 model components to the UV plane model.
! The established model now contains 75 components and 1.77564 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.182539Jy  sigma=2.675781
! Fit after  self-cal, rms=0.181991Jy  sigma=2.658101
! 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 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.01     FD        0.99     GC        1.00*    HH        1.00*    
!   HN        1.03     KK        0.94     KP        0.97     LA        0.97     
!   MA        1.00*    MK        1.04     NL        1.01     NY        1.00*    
!   OV        1.01     PT        0.96     SC        1.03     TS        1.00*    
!   WF        0.98     WZ        1.00*    GG        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.00*    FD        1.00*    GC        1.11     HH        1.00*    
!   HN        1.00*    KK        0.81     KP        1.00*    LA        1.00*    
!   MA        1.00*    MK        0.76     NL        1.00*    NY        1.00*    
!   OV        1.00*    PT        1.00*    SC        1.00*    TS        1.11     
!   WF        1.00*    WZ        1.00*    GG        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        0.99     FD        0.98     GC        1.00*    HH        1.00*    
!   HN        1.02     KK        0.98     KP        0.97     LA        0.98     
!   MA        1.00*    MK        1.04     NL        1.00     NY        1.00*    
!   OV        1.01     PT        0.99     SC        1.06     TS        1.00*    
!   WF        0.96     WZ        1.00*    GG        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.00*    FD        1.00*    GC        1.06     HH        1.00*    
!   HN        1.00*    KK        0.87     KP        1.00*    LA        1.00*    
!   MA        1.00*    MK        0.82     NL        1.00*    NY        1.00*    
!   OV        1.00*    PT        1.00*    SC        1.00*    TS        1.05     
!   WF        1.00*    WZ        1.00*    GG        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00     FD        0.96     GC        1.00*    HH        1.00*    
!   HN        1.00     KK        0.91     KP        0.96     LA        0.97     
!   MA        1.00*    MK        1.00     NL        1.00     NY        1.00*    
!   OV        0.99     PT        0.96     SC        1.02     TS        1.00*    
!   WF        1.01     WZ        1.00*    GG        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.00*    FD        1.00*    GC        1.03     HH        1.00*    
!   HN        1.00*    KK        0.84     KP        1.00*    LA        1.00*    
!   MA        1.00*    MK        0.79     NL        1.00*    NY        1.00*    
!   OV        1.00*    PT        1.00*    SC        1.00*    TS        1.14     
!   WF        1.00*    WZ        1.00*    GG        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        0.97     GC        1.00*    HH        1.00*    
!   HN        1.01     KK        1.04     KP        0.95     LA        0.97     
!   MA        1.00*    MK        1.00     NL        0.99     NY        1.00*    
!   OV        0.98     PT        0.97     SC        1.02     TS        1.00*    
!   WF        1.01     WZ        1.00*    GG        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.00*    FD        1.00*    GC        0.98     HH        1.00*    
!   HN        1.00*    KK        0.88     KP        1.00*    LA        1.00*    
!   MA        1.00*    MK        0.69     NL        1.00*    NY        1.00*    
!   OV        1.00*    PT        1.00*    SC        1.00*    TS        1.13     
!   WF        1.00*    WZ        1.00*    GG        1.00*    
! 
! 
! Fit before self-cal, rms=0.181991Jy  sigma=2.658101
! Fit after  self-cal, rms=0.166658Jy  sigma=2.382958
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=2.896 mas, bmaj=7.906 mas, bpa=-7.722 degrees
! Estimated noise=0.698208 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 (80.8, -65.6).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0399061 Jy
! Component: 100  -  total flux cleaned = 0.0687125 Jy
! Total flux subtracted in 100 components = 0.0687125 Jy
! Clean residual min=-0.018137 max=0.021573 Jy/beam
! Clean residual mean=0.000875 rms=0.005973 Jy/beam
! Combined flux in latest and established models = 1.84435 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 61 model components to the UV plane model.
! The established model now contains 133 components and 1.84435 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.155340Jy  sigma=2.186615
! Fit after  self-cal, rms=0.155105Jy  sigma=2.170604
! 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 (42.4, -24.4).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.024809 Jy
! Component: 100  -  total flux cleaned = 0.0449082 Jy
! Total flux subtracted in 100 components = 0.0449082 Jy
! Clean residual min=-0.015816 max=0.019364 Jy/beam
! Clean residual mean=0.000741 rms=0.005209 Jy/beam
! Combined flux in latest and established models = 1.88926 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 58 model components to the UV plane model.
! The established model now contains 187 components and 1.88926 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.149738Jy  sigma=2.090402
! Fit after  self-cal, rms=0.145142Jy  sigma=1.972659
! Inverting map and beam 
! Estimated beam: bmin=2.898 mas, bmaj=7.917 mas, bpa=-7.738 degrees
! Estimated noise=0.695965 mJy/beam.
! Added new window around map position (14, -1.2).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0186323 Jy
! Component: 100  -  total flux cleaned = 0.0332208 Jy
! Total flux subtracted in 100 components = 0.0332208 Jy
! Clean residual min=-0.015143 max=0.015199 Jy/beam
! Clean residual mean=0.000583 rms=0.004373 Jy/beam
! Combined flux in latest and established models = 1.92248 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 39 model components to the UV plane model.
! The established model now contains 217 components and 1.92248 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.141882Jy  sigma=1.926118
! Fit after  self-cal, rms=0.141284Jy  sigma=1.910403
! Inverting map and beam 
! Estimated beam: bmin=2.897 mas, bmaj=7.917 mas, bpa=-7.741 degrees
! Estimated noise=0.69531 mJy/beam.
! Added new window around map position (67.2, 60).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0154936 Jy
! Component: 100  -  total flux cleaned = 0.028174 Jy
! Total flux subtracted in 100 components = 0.028174 Jy
! Clean residual min=-0.014214 max=0.013991 Jy/beam
! Clean residual mean=0.000500 rms=0.004021 Jy/beam
! Combined flux in latest and established models = 1.95065 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 42 model components to the UV plane model.
! The established model now contains 243 components and 1.95065 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.138775Jy  sigma=1.876760
! Fit after  self-cal, rms=0.138590Jy  sigma=1.869810
! Inverting map and beam 
! Estimated beam: bmin=2.897 mas, bmaj=7.916 mas, bpa=-7.741 degrees
! Estimated noise=0.695297 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 = 0.0122252 Jy
! Component: 100  -  total flux cleaned = 0.0230968 Jy
! Total flux subtracted in 100 components = 0.0230968 Jy
! Clean residual min=-0.013694 max=0.013437 Jy/beam
! Clean residual mean=0.000435 rms=0.003774 Jy/beam
! Combined flux in latest and established models = 1.97375 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 45 model components to the UV plane model.
! The established model now contains 267 components and 1.97375 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.136827Jy  sigma=1.849333
! Fit after  self-cal, rms=0.136482Jy  sigma=1.839018
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 3C446_S
! Writing UV FITS file: 3C446_S.uvf
! Writing 267 model components to file: 3C446_S.mod
! wwins: Wrote 8 windows to 3C446_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.897 x 7.916 at -7.741 degrees (North through East)
! Clean map  min=-0.013708  max=1.3069 Jy/beam
! Writing clean map to FITS file: 3C446_S.fits
! Writing difmap environment to: 3C446_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 3C446_S]
device 3C446_Suv.ps/vps,1,2
! Attempting to open device: '3C446_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 3C446_Sim.ps/vps
! Attempting to open device: '3C446_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=2.897 mas, bmaj=7.916 mas, bpa=-7.741 degrees
! Estimated noise=0.695297 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.897 x 7.916 at -7.741 degrees (North through East)
! Clean map  min=-0.013708  max=1.3069 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo5-0.4]
quit
! Quitting program
! Log file 3C446_S.log closed on Mon Aug 25 16:24:30 2008