! Started logfile: 3C446_S.log_1 on Fri Apr 27 22:00:38 2007
observe 3C446_S.edt
! Reading UV FITS file: 3C446_S.edt
! AN table 1: 16 integrations on 153 of 153 possible baselines.
! AN table 2: 49 integrations on 153 of 153 possible baselines.
! AN table 3: 10 integrations on 153 of 153 possible baselines.
! Apparent sampling: 0.138475 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  2.22997e+09        8e+06          1        8e+06
!  02        2  2.25997e+09        8e+06          1        8e+06
!  03        3  2.34997e+09        8e+06          1        8e+06
!  04        4  2.36997e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 1912 lines of history.
! 
! Reading 6356 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 198 telescope corrections were flagged in sub-array 1.
!  A total of 525 telescope corrections were flagged in sub-array 2.
!  A total of 156 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 198 telescope corrections were flagged in sub-array 1.
!  A total of 527 telescope corrections were flagged in sub-array 2.
!  A total of 156 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 198 telescope corrections were flagged in sub-array 1.
!  A total of 525 telescope corrections were flagged in sub-array 2.
!  A total of 160 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 199 telescope corrections were flagged in sub-array 1.
!  A total of 525 telescope corrections were flagged in sub-array 2.
!  A total of 156 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=1.658422Jy  sigma=0.023853
! Fit after  self-cal, rms=1.658319Jy  sigma=0.023859
! 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=2.066 mas, bmaj=6.782 mas, bpa=0.9796 degrees
! Estimated noise=1297.17 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 = 1.85479 Jy
! Total flux subtracted in 50 components = 1.85479 Jy
! Clean residual min=-0.137992 max=0.517366 Jy/beam
! Clean residual mean=0.003234 rms=0.047973 Jy/beam
! Combined flux in latest and established models = 1.85479 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 1.85479 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.921074Jy  sigma=0.013193
! Fit after  self-cal, rms=0.921073Jy  sigma=0.013193
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.425205 Jy
! Total flux subtracted in 50 components = 0.425205 Jy
! Clean residual min=-0.099732 max=0.204256 Jy/beam
! Clean residual mean=0.002348 rms=0.029537 Jy/beam
! Combined flux in latest and established models = 2.27999 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 2.27999 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.662492Jy  sigma=0.009375
! Fit after  self-cal, rms=0.661035Jy  sigma=0.009362
! Inverting map 
! Added new window around map position (2.8, -1.2).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.211965 Jy
! Total flux subtracted in 50 components = 0.211965 Jy
! Clean residual min=-0.076467 max=0.156883 Jy/beam
! Clean residual mean=0.001920 rms=0.023266 Jy/beam
! Combined flux in latest and established models = 2.49196 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 11 components and 2.49196 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.560230Jy  sigma=0.007958
! Fit after  self-cal, rms=0.556632Jy  sigma=0.007907
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.140085 Jy
! Total flux subtracted in 50 components = 0.140085 Jy
! Clean residual min=-0.067253 max=0.108408 Jy/beam
! Clean residual mean=0.001643 rms=0.019193 Jy/beam
! Combined flux in latest and established models = 2.63204 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 11 components and 2.63204 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.500561Jy  sigma=0.007131
! Fit after  self-cal, rms=0.499153Jy  sigma=0.007109
! Inverting map 
! Added new window around map position (5.6, 0).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.10331 Jy
! Total flux subtracted in 50 components = 0.10331 Jy
! Clean residual min=-0.061165 max=0.074203 Jy/beam
! Clean residual mean=0.001442 rms=0.016670 Jy/beam
! Combined flux in latest and established models = 2.73535 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 17 components and 2.73535 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.464681Jy  sigma=0.006633
! Fit after  self-cal, rms=0.464144Jy  sigma=0.006623
! 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=3.404 mas, bmaj=6.951 mas, bpa=6.116 degrees
! Estimated noise=656.676 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 = 0.162053 Jy
! Component: 100  -  total flux cleaned = 0.264989 Jy
! Total flux subtracted in 100 components = 0.264989 Jy
! Clean residual min=-0.085448 max=0.141562 Jy/beam
! Clean residual mean=-0.001019 rms=0.042290 Jy/beam
! Combined flux in latest and established models = 3.00034 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 48 components and 3.00034 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.406868Jy  sigma=0.005839
! Fit after  self-cal, rms=0.406431Jy  sigma=0.005831
! 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:
!   FD        1.13     GC        1.02     HH        1.00*    HN        1.00*    
!   LA        1.10     MC        1.00*    MK        0.96     NY        1.00*    
!   ON        1.00*    OV        1.08     PT        0.95     SC        1.00*    
!   TS        1.05     WF        1.00*    BR        0.95     KK        1.00*    
!   KP        0.90     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   FD        1.15     GC        1.01     HH        1.00*    HN        1.00*    
!   LA        1.00     MC        1.00*    MK        0.98     NY        1.00*    
!   ON        1.00*    OV        1.16     PT        0.88     SC        1.00*    
!   TS        1.00*    WF        1.00*    BR        0.96     KK        1.00*    
!   KP        0.87     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   FD        1.15     GC        1.00*    HH        1.00*    HN        0.91     
!   LA        1.12     MC        1.00*    MK        1.00*    NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        1.09     SC        1.00*    
!   TS        1.00*    WF        1.06     BR        1.00*    KK        1.00*    
!   KP        0.97     WZ        1.00*    
! 
! 
! Correcting IF 2.
!  Telescope amplitude corrections in sub-array 1:
!   FD        0.97     GC        1.01     HH        1.00*    HN        1.00*    
!   LA        1.05     MC        1.00*    MK        1.06     NY        1.00*    
!   ON        1.00*    OV        1.10     PT        0.91     SC        1.00*    
!   TS        1.01     WF        1.00*    BR        1.01     KK        1.00*    
!   KP        0.92     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   FD        1.00     GC        0.98     HH        1.00*    HN        1.00*    
!   LA        0.97     MC        1.00*    MK        1.08     NY        1.00*    
!   ON        1.00*    OV        1.19     PT        0.87     SC        1.00*    
!   TS        1.00*    WF        1.00*    BR        1.03     KK        1.00*    
!   KP        0.90     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   FD        1.00     GC        1.00*    HH        1.00*    HN        0.93     
!   LA        1.09     MC        1.00*    MK        1.00*    NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        1.07     SC        1.00*    
!   TS        1.00*    WF        1.03     BR        1.00*    KK        1.00*    
!   KP        1.04     WZ        1.00*    
! 
! 
! Correcting IF 3.
!  Telescope amplitude corrections in sub-array 1:
!   FD        0.91     GC        1.02     HH        1.00*    HN        1.00*    
!   LA        0.92     MC        1.00*    MK        1.02     NY        1.00*    
!   ON        1.00*    OV        1.05     PT        0.99     SC        1.00*    
!   TS        0.99     WF        1.00*    BR        1.02     KK        1.00*    
!   KP        0.93     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   FD        0.98     GC        1.02     HH        1.00*    HN        1.00*    
!   LA        0.88     MC        1.00*    MK        1.03     NY        1.00*    
!   ON        1.00*    OV        1.17     PT        0.97     SC        1.00*    
!   TS        1.00*    WF        1.00*    BR        1.05     KK        1.00*    
!   KP        0.94     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   FD        0.94     GC        1.00*    HH        1.00*    HN        1.21     
!   LA        0.96     MC        1.00*    MK        1.00*    NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        1.22     SC        1.00*    
!   TS        1.00*    WF        1.00*    BR        1.00*    KK        1.00*    
!   KP        1.02     WZ        1.00*    
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   FD        0.84     GC        1.13     HH        1.00*    HN        1.00*    
!   LA        0.80     MC        1.00*    MK        0.99     NY        1.00*    
!   ON        1.00*    OV        0.96     PT        1.02     SC        1.00*    
!   TS        1.04     WF        1.00*    BR        0.99     KK        1.00*    
!   KP        0.96     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   FD        0.84     GC        1.08     HH        1.00*    HN        1.00*    
!   LA        0.79     MC        1.00*    MK        0.99     NY        1.00*    
!   ON        1.00*    OV        0.99     PT        0.98     SC        1.00*    
!   TS        1.00*    WF        1.00*    BR        0.99     KK        1.00*    
!   KP        0.96     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   FD        0.80     GC        1.00*    HH        1.00*    HN        1.08     
!   LA        0.75     MC        1.00*    MK        1.00*    NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        1.12     SC        1.00*    
!   TS        1.00*    WF        1.31     BR        1.00*    KK        1.00*    
!   KP        1.05     WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.406431Jy  sigma=0.005831
! Fit after  self-cal, rms=0.255065Jy  sigma=0.003671
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.419 mas, bmaj=7.031 mas, bpa=6.238 degrees
! Estimated noise=642.627 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 (17.6, -14.4).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.11198 Jy
! Component: 100  -  total flux cleaned = 0.164702 Jy
! Total flux subtracted in 100 components = 0.164702 Jy
! Clean residual min=-0.050940 max=0.063332 Jy/beam
! Clean residual mean=-0.000393 rms=0.015510 Jy/beam
! Combined flux in latest and established models = 3.16504 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 32 model components to the UV plane model.
! The established model now contains 80 components and 3.16504 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.208428Jy  sigma=0.002949
! Fit after  self-cal, rms=0.206419Jy  sigma=0.002911
! Inverting map 
! Added new window around map position (53.6, -20).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0628359 Jy
! Component: 100  -  total flux cleaned = 0.0983531 Jy
! Total flux subtracted in 100 components = 0.0983531 Jy
! Clean residual min=-0.040237 max=0.039856 Jy/beam
! Clean residual mean=-0.000306 rms=0.011216 Jy/beam
! Combined flux in latest and established models = 3.2634 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 125 components and 3.2634 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.188397Jy  sigma=0.002634
! Fit after  self-cal, rms=0.187182Jy  sigma=0.002615
! 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 = 0.0285713 Jy
! Component: 100  -  total flux cleaned = 0.0486646 Jy
! Total flux subtracted in 100 components = 0.0486646 Jy
! Clean residual min=-0.037353 max=0.039339 Jy/beam
! Clean residual mean=-0.000274 rms=0.010088 Jy/beam
! Combined flux in latest and established models = 3.31206 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 156 components and 3.31206 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.182739Jy  sigma=0.002550
! Fit after  self-cal, rms=0.160086Jy  sigma=0.002200
! Inverting map and beam 
! Estimated beam: bmin=3.425 mas, bmaj=7.044 mas, bpa=6.133 degrees
! Estimated noise=641.278 mJy/beam.
! Added new window around map position (96, -14).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0361063 Jy
! Component: 100  -  total flux cleaned = 0.060555 Jy
! Total flux subtracted in 100 components = 0.060555 Jy
! Clean residual min=-0.029945 max=0.030775 Jy/beam
! Clean residual mean=-0.000181 rms=0.008040 Jy/beam
! Combined flux in latest and established models = 3.37262 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 33 model components to the UV plane model.
! The established model now contains 186 components and 3.37262 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.152155Jy  sigma=0.002069
! Fit after  self-cal, rms=0.149459Jy  sigma=0.002023
! Inverting map and beam 
! Estimated beam: bmin=3.425 mas, bmaj=7.044 mas, bpa=6.118 degrees
! Estimated noise=640.941 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 = 0.0237328 Jy
! Component: 100  -  total flux cleaned = 0.0417376 Jy
! Total flux subtracted in 100 components = 0.0417376 Jy
! Clean residual min=-0.027900 max=0.027333 Jy/beam
! Clean residual mean=-0.000145 rms=0.007233 Jy/beam
! Combined flux in latest and established models = 3.41435 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 47 model components to the UV plane model.
! The established model now contains 221 components and 3.41435 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.145744Jy  sigma=0.001957
! Fit after  self-cal, rms=0.145548Jy  sigma=0.001955
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 3C446_S
! Writing UV FITS file: 3C446_S.uvf
! Writing 221 model components to file: 3C446_S.mod
! wwins: Wrote 6 windows to 3C446_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.425 x 7.044 at 6.118 degrees (North through East)
! Clean map  min=-0.027456  max=2.4493 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=3.425 mas, bmaj=7.044 mas, bpa=6.118 degrees
! Estimated noise=640.941 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.425 x 7.044 at 6.118 degrees (North through East)
! Clean map  min=-0.027456  max=2.4493 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo5-0.4]
quit
! Quitting program
! Log file 3C446_S.log_1 closed on Fri Apr 27 22:01:02 2007